Postman MCP Server

Detailed Implementation Plan for Postman MCP Server 1. Project Setup & Dependencies Regular Dependencies { "dependencies": { "@modelcontextprotocol/sdk": "^latest", "newman": "^latest", "zod": "^latest" } } Dev Dependencies { "devDependencies": { "typescript": "^latest", "vitest": "^latest", "@types/node": "^latest", "@types/newman": "^latest", "ts-node": "^latest", "prettier": "^latest", "eslint": "^latest", "eslint-config-prettier": "^latest" } } 2. Project Structure /postman-mcp-server ├── package.json ├── tsconfig.json ├── vitest.config.ts ├── src/ │ ├── index.ts # Main entry point │ ├── server/ │ │ ├── server.ts # MCP Server implementation │ │ └── types.ts # Type definitions │ ├── newman/ │ │ ├── runner.ts # Newman runner implementation │ │ └── types.ts # Newman types │ └── utils/ │ └── result-formatter.ts # Format Newman results └── test/ ├── server.test.ts # Server tests ├── newman-runner.test.ts # Newman runner tests └── fixtures/ # Test fixtures ├── sample-collection.json └── sample-environment.json 3. Key File Implementation Plans src/index.ts // Main entry point // - Initialize MCP Server // - Connect transport // - Handle errors src/server/types.ts // Define interfaces for: interface CollectionRunRequest { collection: string; environment?: string; globals?: string; iterationCount?: number; } interface TestResult { success: boolean; summary: TestSummary; failures: TestFailure[]; timings: TestTimings; } src/server/server.ts // Implement: // 1. MCP Server setup // 2. Tool registration // 3. Request handling // 4. Error handling src/newman/runner.ts // Implement: // 1. Newman run configuration // 2. Result collection // 3. Error handling // 4. Resource cleanup src/utils/result-formatter.ts // Implement: // 1. Newman result parsing // 2. MCP response formatting // 3. Error formatting 4. Testing Strategy Unit Tests (vitest.config.ts) // Configure: // - Test environment // - Coverage reporting // - Test matching patterns Test Files test/server.test.ts // Test cases for: // 1. Server initialization // 2. Tool registration // 3. Request handling // 4. Error scenarios test/newman-runner.test.ts // Test cases for: // 1. Collection running // 2. Result parsing // 3. Error handling // 4. Resource cleanup 5. Configuration Files tsconfig.json { "compilerOptions": { "target": "ES2022", "module": "Node16", "outDir": "./build", "strict": true, "esModuleInterop": true } } 6. Implementation Phases Phase 1: Basic Setup Project structure creation Dependency installation Configuration files Phase 2: Core Implementation Newman runner implementation Result formatter Basic error handling Phase 3: MCP Server Server setup Tool registration Request handling Phase 4: Testing Unit test implementation Integration tests Test fixtures Phase 5: Documentation & Polish API documentation Usage examples Error handling improvements 7. Testing Scenarios Server Tests Server initialization Tool registration Request validation Error handling Newman Runner Tests Collection execution Environment handling Result parsing Error scenarios Integration Tests