Swagger/OpenAPI MCP Servers

Swagger/OpenAPI MCP servers provide interfaces for LLMs to interact with API documentation, testing, and generation tools. These servers enable AI models to analyze, test, and generate API specifications using the OpenAPI standard.

Core Components

API Documentation Server

class SwaggerServer extends MCPServer {
  capabilities = {
    tools: {
      'parseSpec': async (params) => {
        // Parse OpenAPI specification
      },
      'validateAPI': async (params) => {
        // Validate API endpoints
      },
      'generateDocs': async (params) => {
        // Generate API documentation
      }
    },
    resources: {
      'apiSpec': async () => {
        // Get current API specification
      }
    }
  }
}

Implementation Examples

API Testing Integration

class APITester extends MCPServer {
  async initialize() {
    return {
      tools: {
        'testEndpoint': this.executeAPITest,
        'generateMocks': this.createMockResponses,
        'validateResponse': this.checkResponse
      }
    };
  }

  private async executeAPITest({ endpoint, method, params }) {
    // Implement API testing logic
  }
}

Configuration Options

swagger:
  version: "3.0.0"
  format: "yaml"  # or json
  validateSpecs: true
  
documentation:
  output: "docs"
  theme: "default"
  includeSecurity: true

Security Guidelines

  1. API Security

    • Authentication schemes
    • Authorization flows
    • Rate limiting
  2. Documentation Safety

    • Sensitive data handling
    • Endpoint exposure
    • Security definitions

Common Use Cases

  1. API Development

    • Specification writing
    • Endpoint validation
    • Schema generation
  2. Documentation

    • Interactive docs
    • Code samples
    • SDK generation
  3. Testing

    • Contract testing
    • Integration testing
    • Security validation

Best Practices

  1. Specification Management

    • Version control
    • Component reuse
    • Schema organization
  2. Documentation Quality

    • Clear descriptions
    • Example responses
    • Error documentation

Testing Strategies

  1. Specification Testing

    • Schema validation
    • Security compliance
    • Example verification
  2. Integration Testing

    • Endpoint availability
    • Response validation
    • Error handling