API Documentation Generator: Automate Documentation Writing

Automatically generate complete API documentation based on code and comments, supporting multiple format outputs, allowing developers to focus on code rather than documentation.

Features

🔍 Smart Parsing

  • • Automatically extract interface information
  • • Identify parameter types
  • • Infer return value structure
  • • Parse comment content

📝 Documentation Generation

  • • Markdown format
  • • OpenAPI/Swagger
  • • HTML static pages
  • • Postman collections

✨ Value-added Features

  • • Example code generation
  • • Multi-language SDKs
  • • Error code descriptions
  • • Version management

Usage Example

Input Code

// User login interface
@PostMapping("/api/auth/login")
public ResponseEntity<?> login(@RequestBody LoginRequest request) {
    // Validate username and password
    if (!authService.validate(request.getUsername(), request.getPassword())) {
        return ResponseEntity.status(401).body(new ErrorResponse("Invalid credentials"));
    }
    
    // Generate token
    String token = jwtService.generateToken(request.getUsername());
    
    return ResponseEntity.ok(new LoginResponse(token, 3600));
}

// Request body
class LoginRequest {
    private String username;  // username
    private String password;  // password
}

// Response body
class LoginResponse {
    private String token;     // access token
    private int expiresIn;   // expiration time (seconds)
}

Generated Documentation

User Login Interface

POST/api/auth/login
Interface Description

Users log in and authenticate through their username and password, and an access token is returned upon success.

Request Parameters
Parameter NameTypeRequiredDescription
usernameStringYesUsername
passwordStringYesPassword
Response Example
// Success response 200
{
  "token": "eyJhbGciOiJIUzI1NiIs...",
  "expiresIn": 3600
}

// Failure response 401
{
  "error": "Invalid credentials"
}

Supported Languages and Frameworks

☕

Java

Spring Boot

🐍

Python

FastAPI/Flask

📜

JavaScript

Express/Koa

🦫

Go

Gin/Echo

Advanced Features

🔄 Real-time Synchronization

Integrate with code repositories, automatically regenerate documentation when code is updated, keeping documentation always up-to-date.

git push → CI/CD → Documentation Generation → Automatic Publishing

🌍 Multi-language Documentation

Automatically translate API documentation into multiple languages to serve global developers.

🇨🇳 Chinese🇬🇧 English🇯🇵 Japanese🇰🇷 Korean

🧪 Interactive Testing

Test APIs directly in the documentation without additional tools.

Documentation Templates

RESTful API Template

  • ✓ Standard HTTP method descriptions
  • ✓ Status code definitions
  • ✓ Request/Response examples
  • ✓ Authentication methods
  • ✓ Error Handling

GraphQL Template

  • ✓ Schema definition
  • ✓ Query/Mutation examples
  • ✓ Type descriptions
  • ✓ Subscription mechanism
  • ✓ Error format

Usage Effect

90%

Time saved on documentation writing

100%

Documentation coverage

0

Inconsistency between documentation and code

Say Goodbye to the Pain of Handwriting Documentation

Let AI help you automatically generate professional, standardized, and real-time updated API documentation.

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