curl --request POST \
  --url https://api.iotools.cloud/v1/tool/csr-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "commonName": "example.com",
  "keyBits": "2048",
  "signatureHash": "sha256"
}
'

{
  "outputs": {
    "privateKey": "<string>",
    "csr": "<string>"
  },
  "tool": "<string>",
  "tool_version": "<string>",
  "credits_used": 123,
  "credits_remaining": 123,
  "request_id": "<string>"
}

{
  "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"
  }
}

{
  "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"
}

{
  "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
}

{
  "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"
}

{
  "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"
}

{
  "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"
}

{
  "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
}

{
  "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
}

{
  "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"
}

Generators

CSR (Certificate Signing Request) Generator

Generate an RSA private key (PEM) and a signed PKCS#10 Certificate Signing Request (CSR) to submit to a Certificate Authority. Set the subject (CN, O, OU, L, ST, C, email) and Subject Alternative Names (DNS/IP/email/URI); choose RSA 2048/3072/4096 and a SHA-2 signature hash. Generated entirely in your browser — the private key never leaves the page.

Try CSR (Certificate Signing Request) Generator in your browser →

POST

tool

csr-generator

curl --request POST \
  --url https://api.iotools.cloud/v1/tool/csr-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "commonName": "example.com",
  "keyBits": "2048",
  "signatureHash": "sha256"
}
'

{
  "outputs": {
    "privateKey": "<string>",
    "csr": "<string>"
  },
  "tool": "<string>",
  "tool_version": "<string>",
  "credits_used": 123,
  "credits_remaining": 123,
  "request_id": "<string>"
}

{
  "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"
  }
}

{
  "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"
}

{
  "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
}

{
  "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"
}

{
  "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"
}

{
  "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"
}

{
  "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
}

{
  "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
}

{
  "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"
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

commonName

string

required

Common Name (CN)

organization

string

Organization (O)

organizationalUnit

string

Organizational Unit (OU)

locality

string

City / Locality (L)

state

string

State / Province (ST)

country

string

Country (C)

string

Email Address

sans

string

Subject Alternative Names (SANs)

keyBits

enum<string>

RSA Key Size

Available options:

2048,

3072,

4096

signatureHash

enum<string>

Signature Hash

Available options:

sha256,

sha384,

sha512

Response

Tool output

outputs

object

required

Show child attributes

tool

string

required

The tool's slug, echoing the {slug} in the request path.

tool_version

string

required

Output-contract version for this tool.

credits_used

integer

required

Credits this call consumed, after any settlement refund. 0 when metering is disabled.

credits_remaining

integer | null

required

Credits left in the current monthly allowance, or null when metering is disabled.

request_id

string

Correlation id, also sent as x-request-id.

Overview

Catalog

Account

Tools

CSR (Certificate Signing Request) Generator

Authorizations

Body

Response