Development

API Doc Generator

Generate polished API documentation from OpenAPI or annotated comments

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/api-doc-generator' \
  -H 'Content-Type: application/json' \
  -d '{"sourceText":"{\n  \"openapi\": \"3.0.0\",\n  \"info\": {\n    \"title\": \"Demo User API\",\n    \"version\": \"1.2.0\",\n    \"description\": \"User management endpoints\"\n  },\n  \"servers\": [\n    {\n      \"url\": \"https://api.example.com\"\n    }\n  ],\n  \"paths\": {\n    \"/users/{id}\": {\n      \"get\": {\n        \"summary\": \"Get user by ID\",\n        \"tags\": [\n          \"users\"\n        ],\n        \"parameters\": [\n          {\n            \"in\": \"path\",\n            \"name\": \"id\",\n            \"required\": true,\n            \"description\": \"User identifier\",\n            \"schema\": {\n              \"type\": \"string\",\n              \"example\": \"u_123\"\n            }\n          }\n        ],\n        \"responses\": {\n          \"200\": {\n            \"description\": \"User payload\",\n            \"content\": {\n              \"application/json\": {\n                \"example\": {\n                  \"id\": \"u_123\",\n                  \"name\": \"Ada\"\n                }\n              }\n            }\n          },\n          \"404\": {\n            \"description\": \"User not found\"\n          }\n        }\n      }\n    }\n  },\n  \"components\": {\n    \"schemas\": {\n      \"User\": {\n        \"type\": \"object\",\n        \"required\": [\n          \"id\",\n          \"name\"\n        ],\n        \"properties\": {\n          \"id\": {\n            \"type\": \"string\"\n          },\n          \"name\": {\n            \"type\": \"string\"\n          }\n        }\n      }\n    }\n  }\n}","sourceFormat":"json","outputFormat":"markdown","documentTitle":"Demo User API","theme":"slate","includeExamples":true,"includeSchemas":true}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/api-doc-generator

Parameters

Name	Type	Required	Description
sourceText	textarea	Yes	—
sourceFormat	select	No	—
outputFormat	select	No	—
documentTitle	text	No	—
theme	select	No	—
includeExamples	checkbox	No	—
includeSchemas	checkbox	No	—

Response format

File result

JSON

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-api-doc-generator": {
      "name": "api-doc-generator",
      "description": "Generate polished API documentation from OpenAPI or annotated comments",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=api-doc-generator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "api-doc-generator",
    "arguments": {
  "sourceText": "{\n  \"openapi\": \"3.0.0\",\n  \"info\": {\n    \"title\": \"Demo User API\",\n    \"version\": \"1.2.0\",\n    \"description\": \"User management endpoints\"\n  },\n  \"servers\": [\n    {\n      \"url\": \"https://api.example.com\"\n    }\n  ],\n  \"paths\": {\n    \"/users/{id}\": {\n      \"get\": {\n        \"summary\": \"Get user by ID\",\n        \"tags\": [\n          \"users\"\n        ],\n        \"parameters\": [\n          {\n            \"in\": \"path\",\n            \"name\": \"id\",\n            \"required\": true,\n            \"description\": \"User identifier\",\n            \"schema\": {\n              \"type\": \"string\",\n              \"example\": \"u_123\"\n            }\n          }\n        ],\n        \"responses\": {\n          \"200\": {\n            \"description\": \"User payload\",\n            \"content\": {\n              \"application/json\": {\n                \"example\": {\n                  \"id\": \"u_123\",\n                  \"name\": \"Ada\"\n                }\n              }\n            }\n          },\n          \"404\": {\n            \"description\": \"User not found\"\n          }\n        }\n      }\n    }\n  },\n  \"components\": {\n    \"schemas\": {\n      \"User\": {\n        \"type\": \"object\",\n        \"required\": [\n          \"id\",\n          \"name\"\n        ],\n        \"properties\": {\n          \"id\": {\n            \"type\": \"string\"\n          },\n          \"name\": {\n            \"type\": \"string\"\n          }\n        }\n      }\n    }\n  }\n}",
  "sourceFormat": "json",
  "outputFormat": "markdown",
  "documentTitle": "Demo User API",
  "theme": "slate",
  "includeExamples": true,
  "includeSchemas": true
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]