> ## Documentation Index
> Fetch the complete documentation index at: https://docs.iotools.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# DNS Zone File Parser

> Paste a BIND zone file and read it as a table: every record with its owner name fully qualified, its inherited TTL resolved, and its type and rdata split out. Honours $ORIGIN, $TTL and multi-line SOA blocks, flags the classic mistakes (missing SOA, a CNAME sharing a name, a target missing its trailing dot), and exports to CSV or JSON. Runs entirely in your browser — no DNS lookups.

[Try DNS Zone File Parser in your browser →](https://iotools.cloud/tool/dns-zone-file-parser/)



## OpenAPI

````yaml https://api.iotools.cloud/v1/openapi post /v1/tool/dns-zone-file-parser
openapi: 3.1.0
info:
  title: iotools.cloud API
  version: 1.0.0
  description: >-
    Run any iotools.cloud tool over HTTP.


    Authenticate with `Authorization: Bearer iot_live_…`.


    **Only `POST /v1/tool/{slug}` costs credits.** Every GET here — the catalog,
    a tool's schema, your balance — is free. A tool call is charged its own
    weight or your plan's per-call minimum, whichever is larger;
    `x-iotools-credit-cost` on each operation is quoted at the free-tier
    minimum, and `GET /v1/tools/list` returns the exact figure for your key.
    `GET /v1/me/credits` reports what you have left, and `GET /v1/me/usage`
    reports what it went on.


    Failures are RFC 9457 problem documents — branch on `code`.
servers:
  - url: https://api.iotools.cloud
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Catalog
    description: Find a tool and read its contract. Free.
  - name: Converters
    description: >-
      Convert between formats, encodings, and units — Base64, CSV and JSON,
      timestamps, and more. Fast, free, and processed right in your browser.
  - name: Formatters
    description: >-
      Format, beautify, minify, and validate code and data — JSON, HTML, CSS,
      SQL, and regex. Clean up messy input in one click, with nothing to upload.
  - name: Generators
    description: >-
      Generate exactly what you need and on demand — passwords, UUIDs, QR codes,
      hashes, random numbers, and more. Secure, instant, and free.
  - name: Calculators
    description: >-
      Crunch the numbers fast — from everyday math to specialized conversions
      and unit work. Free online calculators that run entirely in your browser.
  - name: Editors
    description: >-
      Edit and transform text, code, and images with quick, focused editors that
      run entirely in your browser — nothing to install, and no sign-up needed.
  - name: Utilities
    description: >-
      Everyday developer and web utilities — DNS and IP lookups, redirect and
      certificate checkers, and other quick diagnostics. Free and
      privacy-friendly.
  - name: Account
    description: Your key's allowance, limits and usage history.
paths:
  /v1/tool/dns-zone-file-parser:
    post:
      tags:
        - Utilities
      summary: DNS Zone File Parser
      description: >-
        Paste a BIND zone file and read it as a table: every record with its
        owner name fully qualified, its inherited TTL resolved, and its type and
        rdata split out. Honours $ORIGIN, $TTL and multi-line SOA blocks, flags
        the classic mistakes (missing SOA, a CNAME sharing a name, a target
        missing its trailing dot), and exports to CSV or JSON. Runs entirely in
        your browser — no DNS lookups.


        [Try DNS Zone File Parser in your browser
        →](https://iotools.cloud/tool/dns-zone-file-parser/)
      operationId: run_dns_zone_file_parser
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                zoneFile:
                  type: string
                  description: Zone file
                origin:
                  type: string
                  description: Origin
                defaultTtl:
                  type: string
                  description: Default TTL
                ttlFormat:
                  enum:
                    - seconds
                    - human
                  description: TTL display
              required: []
            examples:
              full_zone_soa_inherited_owner_relative_mx_target:
                summary: Full zone (SOA, inherited owner, relative MX target)
                value:
                  zoneFile: |-
                    $ORIGIN example.com.
                    $TTL 1h

                    @   IN  SOA ns1.example.com. hostmaster.example.com. (
                            2026072601  ; serial
                            7200        ; refresh
                            900         ; retry
                            1209600     ; expire
                            3600 )      ; minimum

                    @           IN  NS      ns1.example.com.
                                IN  NS      ns2.example.com.
                    @           IN  A       192.0.2.10
                    @       300 IN  AAAA    2001:db8::10
                    www         IN  CNAME   @
                    mail        IN  A       192.0.2.20
                    @           IN  MX  10  mail
                    @           IN  TXT     "v=spf1 ip4:192.0.2.20 -all"
                    _sip._tcp   IN  SRV 10 5 5060 sipserver.example.com.
                    @           IN  CAA 0 issue "letsencrypt.org"
              zone_with_mistakes_cname_conflict_duplicate_a:
                summary: Zone with mistakes (CNAME conflict, duplicate A)
                value:
                  zoneFile: >-
                    $ORIGIN example.net.

                    $TTL 300


                    @       IN  SOA ns1.example.net. admin.example.net. ( 1 7200
                    900 1209600 3600 )

                    @       IN  NS  ns1.example.net.

                    shop    IN  CNAME   storefront.example.net.

                    shop    IN  TXT     "verification=abc123"

                    blog    IN  A   198.51.100.5

                    blog    IN  A   198.51.100.5
              no_origin_or_ttl_filled_in_from_the_options:
                summary: No $ORIGIN or $TTL — filled in from the options
                value:
                  zoneFile: "@\t3600\tIN\tSOA\tns1.example.org. admin.example.org. ( 1 7200 900 1209600 3600 )\n@\tIN\tNS\tns1.example.org.\nwww\tIN\tA\t203.0.113.7"
                  origin: example.org
                  defaultTtl: 90m
                  ttlFormat: human
      responses:
        '200':
          description: Tool output
          content:
            application/json:
              examples:
                full_zone_soa_inherited_owner_relative_mx_target:
                  summary: Full zone (SOA, inherited owner, relative MX target)
                  value:
                    tool: dns-zone-file-parser
                    tool_version: 1.0.1
                    outputs:
                      summary:
                        - field: Origin
                          value: example.com.
                        - field: Records
                          value: '11'
                        - field: Distinct names
                          value: '4'
                        - field: Record types
                          value: '9'
                        - field: Shortest TTL
                          value: '300'
                        - field: Longest TTL
                          value: '3600'
                        - field: Unparsed lines
                          value: '0'
                        - field: Issues
                          value: 0 errors, 1 warning
                      records:
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: SOA
                          value: >-
                            ns1.example.com. hostmaster.example.com. 2026072601
                            7200 900 1209600 3600
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: NS
                          value: ns1.example.com.
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: NS
                          value: ns2.example.com.
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: A
                          value: 192.0.2.10
                        - name: example.com.
                          ttl: '300'
                          class: IN
                          type: AAAA
                          value: 2001:db8::10
                        - name: www.example.com.
                          ttl: '3600'
                          class: IN
                          type: CNAME
                          value: '@'
                        - name: mail.example.com.
                          ttl: '3600'
                          class: IN
                          type: A
                          value: 192.0.2.20
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: MX
                          value: 10 mail
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: TXT
                          value: '"v=spf1 ip4:192.0.2.20 -all"'
                        - name: _sip._tcp.example.com.
                          ttl: '3600'
                          class: IN
                          type: SRV
                          value: 10 5 5060 sipserver.example.com.
                        - name: example.com.
                          ttl: '3600'
                          class: IN
                          type: CAA
                          value: 0 issue "letsencrypt.org"
                      typeCounts:
                        - type: A
                          count: '2'
                        - type: NS
                          count: '2'
                        - type: AAAA
                          count: '1'
                        - type: CAA
                          count: '1'
                        - type: CNAME
                          count: '1'
                        - type: MX
                          count: '1'
                        - type: SOA
                          count: '1'
                        - type: SRV
                          count: '1'
                        - type: TXT
                          count: '1'
                      issues:
                        - severity: Warning
                          line: '17'
                          detail: >-
                            MX target "mail" has no trailing dot, so it resolves
                            to mail.example.com. — add the dot if you meant an
                            external name.
                      normalized: "$ORIGIN example.com.\nexample.com.\t3600\tIN\tSOA\tns1.example.com. hostmaster.example.com. 2026072601 7200 900 1209600 3600\nexample.com.\t3600\tIN\tNS\tns1.example.com.\nexample.com.\t3600\tIN\tNS\tns2.example.com.\nexample.com.\t3600\tIN\tA\t192.0.2.10\nexample.com.\t300\tIN\tAAAA\t2001:db8::10\nwww.example.com.\t3600\tIN\tCNAME\t@\nmail.example.com.\t3600\tIN\tA\t192.0.2.20\nexample.com.\t3600\tIN\tMX\t10 mail\nexample.com.\t3600\tIN\tTXT\t\"v=spf1 ip4:192.0.2.20 -all\"\n_sip._tcp.example.com.\t3600\tIN\tSRV\t10 5 5060 sipserver.example.com.\nexample.com.\t3600\tIN\tCAA\t0 issue \"letsencrypt.org\"\n"
                      json: |-
                        {
                          "origin": "example.com.",
                          "directives": [
                            {
                              "name": "$ORIGIN",
                              "value": "example.com."
                            },
                            {
                              "name": "$TTL",
                              "value": "3600"
                            }
                          ],
                          "records": [
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "SOA",
                              "rdata": "ns1.example.com. hostmaster.example.com. 2026072601 7200 900 1209600 3600",
                              "target": null,
                              "line": 4
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "NS",
                              "rdata": "ns1.example.com.",
                              "target": "ns1.example.com.",
                              "line": 11
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "NS",
                              "rdata": "ns2.example.com.",
                              "target": "ns2.example.com.",
                              "line": 12
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "A",
                              "rdata": "192.0.2.10",
                              "target": null,
                              "line": 13
                            },
                            {
                              "name": "example.com.",
                              "ttl": 300,
                              "ttlSource": "record",
                              "class": "IN",
                              "type": "AAAA",
                              "rdata": "2001:db8::10",
                              "target": null,
                              "line": 14
                            },
                            {
                              "name": "www.example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "CNAME",
                              "rdata": "@",
                              "target": "example.com.",
                              "line": 15
                            },
                            {
                              "name": "mail.example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "A",
                              "rdata": "192.0.2.20",
                              "target": null,
                              "line": 16
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "MX",
                              "rdata": "10 mail",
                              "target": "mail.example.com.",
                              "line": 17
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "TXT",
                              "rdata": "\"v=spf1 ip4:192.0.2.20 -all\"",
                              "target": null,
                              "line": 18
                            },
                            {
                              "name": "_sip._tcp.example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "SRV",
                              "rdata": "10 5 5060 sipserver.example.com.",
                              "target": "sipserver.example.com.",
                              "line": 19
                            },
                            {
                              "name": "example.com.",
                              "ttl": 3600,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "CAA",
                              "rdata": "0 issue \"letsencrypt.org\"",
                              "target": null,
                              "line": 20
                            }
                          ],
                          "issues": [
                            {
                              "severity": "Warning",
                              "line": "17",
                              "message": "MX target \"mail\" has no trailing dot, so it resolves to mail.example.com. — add the dot if you meant an external name."
                            }
                          ]
                        }
                    credits_used: 3
                    credits_remaining: null
                zone_with_mistakes_cname_conflict_duplicate_a:
                  summary: Zone with mistakes (CNAME conflict, duplicate A)
                  value:
                    tool: dns-zone-file-parser
                    tool_version: 1.0.1
                    outputs:
                      summary:
                        - field: Origin
                          value: example.net.
                        - field: Records
                          value: '6'
                        - field: Distinct names
                          value: '3'
                        - field: Record types
                          value: '5'
                        - field: Shortest TTL
                          value: '300'
                        - field: Longest TTL
                          value: '300'
                        - field: Unparsed lines
                          value: '0'
                        - field: Issues
                          value: 1 error, 1 warning
                      records:
                        - name: example.net.
                          ttl: '300'
                          class: IN
                          type: SOA
                          value: >-
                            ns1.example.net. admin.example.net. 1 7200 900
                            1209600 3600
                        - name: example.net.
                          ttl: '300'
                          class: IN
                          type: NS
                          value: ns1.example.net.
                        - name: shop.example.net.
                          ttl: '300'
                          class: IN
                          type: CNAME
                          value: storefront.example.net.
                        - name: shop.example.net.
                          ttl: '300'
                          class: IN
                          type: TXT
                          value: '"verification=abc123"'
                        - name: blog.example.net.
                          ttl: '300'
                          class: IN
                          type: A
                          value: 198.51.100.5
                        - name: blog.example.net.
                          ttl: '300'
                          class: IN
                          type: A
                          value: 198.51.100.5
                      typeCounts:
                        - type: A
                          count: '2'
                        - type: CNAME
                          count: '1'
                        - type: NS
                          count: '1'
                        - type: SOA
                          count: '1'
                        - type: TXT
                          count: '1'
                      issues:
                        - severity: Error
                          line: '6'
                          detail: >-
                            shop.example.net. has a CNAME alongside TXT — a
                            CNAME must be the only record at its name.
                        - severity: Warning
                          line: '9'
                          detail: >-
                            Duplicate A for blog.example.net. (already on line
                            8).
                      normalized: "$ORIGIN example.net.\nexample.net.\t300\tIN\tSOA\tns1.example.net. admin.example.net. 1 7200 900 1209600 3600\nexample.net.\t300\tIN\tNS\tns1.example.net.\nshop.example.net.\t300\tIN\tCNAME\tstorefront.example.net.\nshop.example.net.\t300\tIN\tTXT\t\"verification=abc123\"\nblog.example.net.\t300\tIN\tA\t198.51.100.5\nblog.example.net.\t300\tIN\tA\t198.51.100.5\n"
                      json: |-
                        {
                          "origin": "example.net.",
                          "directives": [
                            {
                              "name": "$ORIGIN",
                              "value": "example.net."
                            },
                            {
                              "name": "$TTL",
                              "value": "300"
                            }
                          ],
                          "records": [
                            {
                              "name": "example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "SOA",
                              "rdata": "ns1.example.net. admin.example.net. 1 7200 900 1209600 3600",
                              "target": null,
                              "line": 4
                            },
                            {
                              "name": "example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "NS",
                              "rdata": "ns1.example.net.",
                              "target": "ns1.example.net.",
                              "line": 5
                            },
                            {
                              "name": "shop.example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "CNAME",
                              "rdata": "storefront.example.net.",
                              "target": "storefront.example.net.",
                              "line": 6
                            },
                            {
                              "name": "shop.example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "TXT",
                              "rdata": "\"verification=abc123\"",
                              "target": null,
                              "line": 7
                            },
                            {
                              "name": "blog.example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "A",
                              "rdata": "198.51.100.5",
                              "target": null,
                              "line": 8
                            },
                            {
                              "name": "blog.example.net.",
                              "ttl": 300,
                              "ttlSource": "directive",
                              "class": "IN",
                              "type": "A",
                              "rdata": "198.51.100.5",
                              "target": null,
                              "line": 9
                            }
                          ],
                          "issues": [
                            {
                              "severity": "Error",
                              "line": "6",
                              "message": "shop.example.net. has a CNAME alongside TXT — a CNAME must be the only record at its name."
                            },
                            {
                              "severity": "Warning",
                              "line": "9",
                              "message": "Duplicate A for blog.example.net. (already on line 8)."
                            }
                          ]
                        }
                    credits_used: 3
                    credits_remaining: null
                no_origin_or_ttl_filled_in_from_the_options:
                  summary: No $ORIGIN or $TTL — filled in from the options
                  value:
                    tool: dns-zone-file-parser
                    tool_version: 1.0.1
                    outputs:
                      summary:
                        - field: Origin
                          value: example.org.
                        - field: Records
                          value: '3'
                        - field: Distinct names
                          value: '2'
                        - field: Record types
                          value: '3'
                        - field: Shortest TTL
                          value: 1h
                        - field: Longest TTL
                          value: 1h 30m
                        - field: Unparsed lines
                          value: '0'
                        - field: Issues
                          value: 0 errors, 1 warning
                      records:
                        - name: example.org.
                          ttl: 1h
                          class: IN
                          type: SOA
                          value: >-
                            ns1.example.org. admin.example.org. 1 7200 900
                            1209600 3600
                        - name: example.org.
                          ttl: 1h 30m
                          class: IN
                          type: NS
                          value: ns1.example.org.
                        - name: www.example.org.
                          ttl: 1h 30m
                          class: IN
                          type: A
                          value: 203.0.113.7
                      typeCounts:
                        - type: A
                          count: '1'
                        - type: NS
                          count: '1'
                        - type: SOA
                          count: '1'
                      issues:
                        - severity: Warning
                          line: —
                          detail: >-
                            Records without a TTL and no $TTL directive — the
                            Default TTL option was used instead.
                      normalized: "$ORIGIN example.org.\nexample.org.\t3600\tIN\tSOA\tns1.example.org. admin.example.org. 1 7200 900 1209600 3600\nexample.org.\t5400\tIN\tNS\tns1.example.org.\nwww.example.org.\t5400\tIN\tA\t203.0.113.7\n"
                      json: |-
                        {
                          "origin": "example.org.",
                          "directives": [],
                          "records": [
                            {
                              "name": "example.org.",
                              "ttl": 3600,
                              "ttlSource": "record",
                              "class": "IN",
                              "type": "SOA",
                              "rdata": "ns1.example.org. admin.example.org. 1 7200 900 1209600 3600",
                              "target": null,
                              "line": 1
                            },
                            {
                              "name": "example.org.",
                              "ttl": 5400,
                              "ttlSource": "fallback",
                              "class": "IN",
                              "type": "NS",
                              "rdata": "ns1.example.org.",
                              "target": "ns1.example.org.",
                              "line": 2
                            },
                            {
                              "name": "www.example.org.",
                              "ttl": 5400,
                              "ttlSource": "fallback",
                              "class": "IN",
                              "type": "A",
                              "rdata": "203.0.113.7",
                              "target": null,
                              "line": 3
                            }
                          ],
                          "issues": [
                            {
                              "severity": "Warning",
                              "line": "—",
                              "message": "Records without a TTL and no $TTL directive — the Default TTL option was used instead."
                            }
                          ]
                        }
                    credits_used: 3
                    credits_remaining: null
              schema:
                type: object
                required:
                  - tool
                  - tool_version
                  - outputs
                  - credits_used
                  - credits_remaining
                properties:
                  outputs:
                    type: object
                    properties:
                      summary:
                        type: array
                        description: Zone
                        items:
                          type: object
                          properties:
                            field:
                              type: string
                              description: Field
                            value:
                              type: string
                              description: Value
                        x-iotools-columns:
                          - field
                          - value
                      records:
                        type: array
                        description: Records
                        items:
                          type: object
                          properties:
                            name:
                              type: string
                              description: Name
                            ttl:
                              type: string
                              description: TTL
                            class:
                              type: string
                              description: Class
                            type:
                              type: string
                              description: Type
                            value:
                              type: string
                              description: Value
                        x-iotools-columns:
                          - name
                          - ttl
                          - class
                          - type
                          - value
                      typeCounts:
                        type: array
                        description: Record types
                        items:
                          type: object
                          properties:
                            type:
                              type: string
                              description: Type
                            count:
                              type: string
                              description: Count
                        x-iotools-columns:
                          - type
                          - count
                      issues:
                        type: array
                        description: Issues
                        items:
                          type: object
                          properties:
                            severity:
                              type: string
                              description: Severity
                            line:
                              type: string
                              description: Line
                            detail:
                              type: string
                              description: Detail
                        x-iotools-columns:
                          - severity
                          - line
                          - detail
                      normalized:
                        type: string
                        description: Normalised zone
                      json:
                        type: string
                        description: JSON
                  tool:
                    type: string
                    description: The tool's slug, echoing the {slug} in the request path.
                  tool_version:
                    type: string
                    description: Output-contract version for this tool.
                  credits_used:
                    type: integer
                    description: >-
                      Credits this call consumed, after any settlement refund. 0
                      when metering is disabled.
                  credits_remaining:
                    type:
                      - integer
                      - 'null'
                    description: >-
                      Credits left in the current monthly allowance, or null
                      when metering is disabled.
                  request_id:
                    type: string
                    description: Correlation id, also sent as x-request-id.
        '400':
          $ref: '#/components/responses/ValidationError'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          $ref: '#/components/responses/InsufficientCredits'
        '403':
          $ref: '#/components/responses/ToolNotAllowed'
        '404':
          $ref: '#/components/responses/ToolNotFound'
        '413':
          $ref: '#/components/responses/PayloadTooLarge'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/ToolFailed'
        '503':
          $ref: '#/components/responses/ToolDisabled'
      security:
        - bearerAuth: []
components:
  responses:
    ValidationError:
      description: Invalid request.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/validation_error
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Invalid request
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - validation_error
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
              fields:
                type:
                  - object
                  - string
                additionalProperties:
                  type: string
                description: >-
                  What failed: a map of field name → message. Absent when the
                  body itself is malformed; a single string when the failure
                  isn't tied to one field.
          example:
            type: https://iotools.cloud/docs/errors/validation_error
            title: Invalid request
            status: 400
            code: validation_error
            detail: One or more inputs are invalid — see `fields`.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
            fields:
              inputString: Required
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/invalid_api_key
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Invalid API key
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - invalid_api_key
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
          example:
            type: https://iotools.cloud/docs/errors/invalid_api_key
            title: Invalid API key
            status: 401
            code: invalid_api_key
            detail: 'Provide ''Authorization: Bearer <key>''.'
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
    InsufficientCredits:
      description: Monthly credit allowance exhausted.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/insufficient_credits
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Insufficient credits
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - insufficient_credits
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
              credits_used:
                type: integer
                description: Always 0 — a refused call charges nothing.
              credits_remaining:
                type: integer
                description: Credits left in the allowance — fewer than this call costs.
          example:
            type: https://iotools.cloud/docs/errors/insufficient_credits
            title: Insufficient credits
            status: 402
            code: insufficient_credits
            detail: This call costs 1 credit and 0 remain in this month's allowance.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
            credits_used: 0
            credits_remaining: 0
    ToolNotAllowed:
      description: Tool exists but has no API surface.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/tool_not_allowed
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Tool not available over the API
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - tool_not_allowed
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
          example:
            type: https://iotools.cloud/docs/errors/tool_not_allowed
            title: Tool not available over the API
            status: 403
            code: tool_not_allowed
            detail: >-
              "Background Remover" is available on iotools.cloud but has no API
              endpoint.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
    ToolNotFound:
      description: No such tool.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/tool_not_found
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Tool not found
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - tool_not_found
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
          example:
            type: https://iotools.cloud/docs/errors/tool_not_found
            title: Tool not found
            status: 404
            code: tool_not_found
            detail: No tool with that slug. See GET /v1/tools/list.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
    PayloadTooLarge:
      description: Body too large.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/payload_too_large
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Payload too large
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - payload_too_large
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
          example:
            type: https://iotools.cloud/docs/errors/payload_too_large
            title: Payload too large
            status: 413
            code: payload_too_large
            detail: Request body exceeds this tool's size limit.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
    RateLimited:
      description: Per-minute rate limit exceeded.
      headers:
        Retry-After:
          description: Seconds to wait before retrying (RFC 9110 delta-seconds).
          schema:
            type: integer
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/rate_limited
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Rate limit exceeded
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - rate_limited
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
              retry_after:
                type: integer
                description: >-
                  Seconds until the window resets — the same value as the
                  `Retry-After` header.
          example:
            type: https://iotools.cloud/docs/errors/rate_limited
            title: Rate limit exceeded
            status: 429
            code: rate_limited
            detail: Too many requests. Retry in 30s.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
            retry_after: 30
    ToolFailed:
      description: Tool failed to run.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/processing_error
                  - https://iotools.cloud/docs/errors/internal_error
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Tool failed to run
                  - Internal error
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - processing_error
                  - internal_error
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
              credits_used:
                type: integer
                description: >-
                  Always 0 on `processing_error` — a failed run is refunded,
                  floor included.
              credits_remaining:
                type: integer
                description: >-
                  Credits left after the refund. Absent when metering is
                  disabled.
          example:
            type: https://iotools.cloud/docs/errors/processing_error
            title: Tool failed to run
            status: 500
            code: processing_error
            detail: The tool failed to run. Please try again.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
            credits_used: 0
    ToolDisabled:
      description: Tool temporarily disabled.
      content:
        application/problem+json:
          schema:
            type: object
            description: >-
              RFC 9457 problem document, served as application/problem+json.
              Branch on `code`; `title` is human prose and may be reworded
              without notice. Some failures add extension members — `fields` on
              validation errors, `retry_after` on 429s,
              `credits_used`/`credits_remaining` on billing-adjacent failures —
              documented on the responses that carry them.
            required:
              - type
              - title
              - status
              - code
            properties:
              type:
                type: string
                format: uri
                description: Stable documentation URI for this failure.
                examples:
                  - https://iotools.cloud/docs/errors/tool_disabled
                  - https://iotools.cloud/docs/errors/api_unconfigured
              title:
                type: string
                description: Short human-readable summary of the failure.
                examples:
                  - Tool temporarily disabled
                  - API not configured
              status:
                type: integer
                description: HTTP status code, matching the response's own status.
              code:
                type: string
                description: >-
                  Stable machine-readable error code — branch on this, not
                  `title`.
                enum:
                  - tool_disabled
                  - api_unconfigured
              detail:
                type: string
                description: Human explanation of this occurrence.
              request_id:
                type: string
                description: Correlation id, also sent as x-request-id.
          example:
            type: https://iotools.cloud/docs/errors/tool_disabled
            title: Tool temporarily disabled
            status: 503
            code: tool_disabled
            detail: This tool is temporarily unavailable. Try again shortly.
            request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: iot_live_…

````