Generations API: POST /api/generate-code-documentation

This endpoint generates AI-powered documentation for a single source code file.

Authentication 🔒

All /api/* routes require a valid API token. Include this header in every request:

  • Authorization: Bearer

Headers

  • Content-Type: application/json
  • Authorization: Bearer (required)
  • User-Agent: determines the generation source (API vs MCP)

Request Payload 📦

Provide a JSON body with the following fields:

Field Type Required? Description
source_code string yes Raw contents of the file to document.
filename string yes Name of the source file (with extension).
name string no Custom title for this generation (max 255 chars).
output_language string no Language for the documentation (default “English”).
documentation_type string no One of the configured doc types (e.g., “API Documentation”, “General Documentation”).
additional_instructions string no Free-form instructions to guide the AI beyond defaults.

Example Request Body

{
  "source_code": "<?php\nclass Calculator {\n  public function add($a, $b) { return $a + $b; }\n}",
  "filename": "Calculator.php",
  "name": "Calculator Docs",
  "output_language": "English",
  "documentation_type": "API Documentation",
  "additional_instructions": "Focus on input validation details."
}

API Definition 🔧

{
    "title": "Generate Code Documentation",
    "description": "Produces markdown documentation for a single source code file via AI",
    "method": "POST",
    "baseUrl": "https://app.docuwriter.ai",
    "endpoint": "/api/generate-code-documentation",
    "headers": [
        {
            "key": "Authorization",
            "value": "Bearer <token>",
            "required": true
        },
        {
            "key": "User-Agent",
            "value": "@docuwriter/mcp-client | Any",
            "required": false
        }
    ],
    "queryParams": [],
    "pathParams": [],
    "bodyType": "json",
    "requestBody": "{\n  \"source_code\": \"...\",\n  \"filename\": \"...\",\n  \"name\": \"...\",\n  \"output_language\": \"...\",\n  \"documentation_type\": \"...\",\n  \"additional_instructions\": \"...\"\n}",
    "formData": [],
    "rawBody": "",
    "responses": {
        "200": {
            "description": "Documentation generated successfully",
            "body": "{\n  \"success\": true,\n  \"data\": {\n    \"generation\": \"# Calculator\\n...\",\n    \"generation_id\": 42\n  }\n}"
        },
        "400": {
            "description": "Payload too large or invalid processing",
            "body": "{\n  \"success\": false,\n  \"message\": \"The provided code is too large for processing...\"\n}"
        },
        "403": {
            "description": "No remaining credits or unauthorized role",
            "body": "{\n  \"success\": false,\n  \"message\": \"You have no remaining credits...\"\n}"
        },
        "422": {
            "description": "Validation error",
            "body": "{\n  \"message\": \"The given data was invalid.\",\n  \"errors\": {\n    \"source_code\": [\"The source_code field is required.\"],\n    \"filename\": [\"The filename field is required.\"]\n  }\n}"
        },
        "500": {
            "description": "Internal server error or AI service failure",
            "body": "{\n  \"success\": false,\n  \"message\": \"There was an error generating the documentation. Please try again.\"\n}"
        }
    }
}

Updated