> ## 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.

# Country Info Lookup

> Look up any country's capital, population region, currency, calling code, flag emoji, ISO codes and top-level domain — pick from all 249 ISO 3166-1 countries and territories.

[Try Country Info Lookup in your browser →](https://iotools.cloud/tool/country-info-lookup/)



## OpenAPI

````yaml https://api.iotools.cloud/v1/openapi post /v1/tool/country-info-lookup
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/country-info-lookup:
    post:
      tags:
        - Utilities
      summary: Country Info Lookup
      description: >-
        Look up any country's capital, population region, currency, calling
        code, flag emoji, ISO codes and top-level domain — pick from all 249 ISO
        3166-1 countries and territories.


        [Try Country Info Lookup in your browser
        →](https://iotools.cloud/tool/country-info-lookup/)
      operationId: run_country_info_lookup
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                country:
                  enum:
                    - Afghanistan
                    - Åland Islands
                    - Albania
                    - Algeria
                    - American Samoa
                    - Andorra
                    - Angola
                    - Anguilla
                    - Antarctica
                    - Antigua and Barbuda
                    - Argentina
                    - Armenia
                    - Aruba
                    - Australia
                    - Austria
                    - Azerbaijan
                    - Bahamas
                    - Bahrain
                    - Bangladesh
                    - Barbados
                    - Belarus
                    - Belgium
                    - Belize
                    - Benin
                    - Bermuda
                    - Bhutan
                    - Bolivia
                    - Bonaire, Sint Eustatius and Saba
                    - Bosnia and Herzegovina
                    - Botswana
                    - Bouvet Island
                    - Brazil
                    - British Indian Ocean Territory
                    - British Virgin Islands
                    - Brunei
                    - Bulgaria
                    - Burkina Faso
                    - Burundi
                    - Cabo Verde
                    - Cambodia
                    - Cameroon
                    - Canada
                    - Cayman Islands
                    - Central African Republic
                    - Chad
                    - Chile
                    - China
                    - Christmas Island
                    - Cocos (Keeling) Islands
                    - Colombia
                    - Comoros
                    - Congo (Democratic Republic)
                    - Congo (Republic)
                    - Cook Islands
                    - Costa Rica
                    - Côte d'Ivoire
                    - Croatia
                    - Cuba
                    - Curaçao
                    - Cyprus
                    - Czech Republic
                    - Denmark
                    - Djibouti
                    - Dominica
                    - Dominican Republic
                    - Ecuador
                    - Egypt
                    - El Salvador
                    - Equatorial Guinea
                    - Eritrea
                    - Estonia
                    - Eswatini
                    - Ethiopia
                    - Falkland Islands
                    - Faroe Islands
                    - Fiji
                    - Finland
                    - France
                    - French Guiana
                    - French Polynesia
                    - French Southern Territories
                    - Gabon
                    - Gambia
                    - Georgia
                    - Germany
                    - Ghana
                    - Gibraltar
                    - Greece
                    - Greenland
                    - Grenada
                    - Guadeloupe
                    - Guam
                    - Guatemala
                    - Guernsey
                    - Guinea
                    - Guinea-Bissau
                    - Guyana
                    - Haiti
                    - Heard Island and McDonald Islands
                    - Honduras
                    - Hong Kong
                    - Hungary
                    - Iceland
                    - India
                    - Indonesia
                    - Iran
                    - Iraq
                    - Ireland
                    - Isle of Man
                    - Israel
                    - Italy
                    - Jamaica
                    - Japan
                    - Jersey
                    - Jordan
                    - Kazakhstan
                    - Kenya
                    - Kiribati
                    - Kuwait
                    - Kyrgyzstan
                    - Laos
                    - Latvia
                    - Lebanon
                    - Lesotho
                    - Liberia
                    - Libya
                    - Liechtenstein
                    - Lithuania
                    - Luxembourg
                    - Macau
                    - Madagascar
                    - Malawi
                    - Malaysia
                    - Maldives
                    - Mali
                    - Malta
                    - Marshall Islands
                    - Martinique
                    - Mauritania
                    - Mauritius
                    - Mayotte
                    - Mexico
                    - Micronesia
                    - Moldova
                    - Monaco
                    - Mongolia
                    - Montenegro
                    - Montserrat
                    - Morocco
                    - Mozambique
                    - Myanmar
                    - Namibia
                    - Nauru
                    - Nepal
                    - Netherlands
                    - New Caledonia
                    - New Zealand
                    - Nicaragua
                    - Niger
                    - Nigeria
                    - Niue
                    - Norfolk Island
                    - North Korea
                    - North Macedonia
                    - Northern Mariana Islands
                    - Norway
                    - Oman
                    - Pakistan
                    - Palau
                    - Palestine
                    - Panama
                    - Papua New Guinea
                    - Paraguay
                    - Peru
                    - Philippines
                    - Pitcairn Islands
                    - Poland
                    - Portugal
                    - Puerto Rico
                    - Qatar
                    - Réunion
                    - Romania
                    - Russia
                    - Rwanda
                    - Saint Barthélemy
                    - Saint Helena, Ascension and Tristan da Cunha
                    - Saint Kitts and Nevis
                    - Saint Lucia
                    - Saint Martin
                    - Saint Pierre and Miquelon
                    - Saint Vincent and the Grenadines
                    - Samoa
                    - San Marino
                    - São Tomé and Príncipe
                    - Saudi Arabia
                    - Senegal
                    - Serbia
                    - Seychelles
                    - Sierra Leone
                    - Singapore
                    - Sint Maarten
                    - Slovakia
                    - Slovenia
                    - Solomon Islands
                    - Somalia
                    - South Africa
                    - South Georgia and South Sandwich Islands
                    - South Korea
                    - South Sudan
                    - Spain
                    - Sri Lanka
                    - Sudan
                    - Suriname
                    - Svalbard and Jan Mayen
                    - Sweden
                    - Switzerland
                    - Syria
                    - Taiwan
                    - Tajikistan
                    - Tanzania
                    - Thailand
                    - Timor-Leste
                    - Togo
                    - Tokelau
                    - Tonga
                    - Trinidad and Tobago
                    - Tunisia
                    - Turkey
                    - Turkmenistan
                    - Turks and Caicos Islands
                    - Tuvalu
                    - Uganda
                    - Ukraine
                    - United Arab Emirates
                    - United Kingdom
                    - United States
                    - United States Minor Outlying Islands
                    - Uruguay
                    - U.S. Virgin Islands
                    - Uzbekistan
                    - Vanuatu
                    - Vatican City
                    - Venezuela
                    - Vietnam
                    - Wallis and Futuna
                    - Western Sahara
                    - Yemen
                    - Zambia
                    - Zimbabwe
                  description: Country
              required: []
            examples:
              japan:
                summary: Japan
                value:
                  country: Japan
              france:
                summary: France
                value:
                  country: France
              unknown_query:
                summary: Unknown query
                value:
                  country: Atlantis
      responses:
        '200':
          description: Tool output
          content:
            application/json:
              examples:
                japan:
                  summary: Japan
                  value:
                    tool: country-info-lookup
                    tool_version: 1.0.1
                    outputs:
                      countryInfo:
                        - property: Flag
                          value: 🇯🇵
                        - property: Name
                          value: Japan
                        - property: Official name
                          value: Japan
                        - property: ISO Alpha-2
                          value: JP
                        - property: ISO Alpha-3
                          value: JPN
                        - property: Numeric code
                          value: '392'
                        - property: Dialing code
                          value: '+81'
                        - property: Capital
                          value: Tokyo
                        - property: Currency
                          value: JPY — Japanese yen
                        - property: Currency symbol
                          value: ¥
                        - property: TLD
                          value: .jp
                        - property: Continent
                          value: Asia
                        - property: Subregion
                          value: Eastern Asia
                    credits_used: 3
                    credits_remaining: null
                france:
                  summary: France
                  value:
                    tool: country-info-lookup
                    tool_version: 1.0.1
                    outputs:
                      countryInfo:
                        - property: Flag
                          value: 🇫🇷
                        - property: Name
                          value: France
                        - property: Official name
                          value: French Republic
                        - property: ISO Alpha-2
                          value: FR
                        - property: ISO Alpha-3
                          value: FRA
                        - property: Numeric code
                          value: '250'
                        - property: Dialing code
                          value: '+33'
                        - property: Capital
                          value: Paris
                        - property: Currency
                          value: EUR — Euro
                        - property: Currency symbol
                          value: €
                        - property: TLD
                          value: .fr
                        - property: Continent
                          value: Europe
                        - property: Subregion
                          value: Western Europe
                    credits_used: 3
                    credits_remaining: null
                unknown_query:
                  summary: Unknown query
                  value:
                    tool: country-info-lookup
                    tool_version: 1.0.1
                    outputs:
                      countryInfo:
                        - property: Not found
                          value: No country matching "Atlantis"
                    credits_used: 3
                    credits_remaining: null
              schema:
                type: object
                required:
                  - tool
                  - tool_version
                  - outputs
                  - credits_used
                  - credits_remaining
                properties:
                  outputs:
                    type: object
                    properties:
                      countryInfo:
                        type: array
                        description: Country info
                        items:
                          type: object
                          properties:
                            property:
                              type: string
                              description: Property
                            value:
                              type: string
                              description: Value
                        x-iotools-columns:
                          - property
                          - value
                  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_…

````