mcp-builder

Design an MCP server by defining tool interfaces with explicit input schemas, robust error handling, and security considerations. MCP (Model Context Protocol) servers connect AI systems with external tools and data sources through standardized interfaces. Start with the TypeScript project scaffold, choose your transport type (Stdio, SSE, or WebSocket), and implement tools following single-responsibility principles.

Structure your MCP server with a TypeScript project layout including src/index.ts, tsconfig.json, and package.json. This enforces consistency across projects and supports multiple transport types. The scaffold provides a foundation for defining tool schemas, implementing handlers, and managing protocol conformance.

Yes, MCP servers support multiple transport types including Stdio, SSE (Server-Sent Events), and WebSocket. Choose the transport that fits your deployment context—Stdio for local processes, SSE or WebSocket for network-based integrations. The server design codifies how to implement each transport while maintaining protocol compliance.

Define explicit input schemas for each tool and validate them before execution. MCP tool design emphasizes clear tool names, single responsibilities, validated inputs, and structured outputs. This ensures reliable automation and safe AI integrations by preventing malformed requests and unexpected tool behavior.

MCP server design codifies security principles including input validation, error handling, and access control. Validate all inputs against defined schemas, handle errors gracefully without exposing internals, and implement appropriate authorization for sensitive operations. These practices protect your AI integrations from misuse and data leaks.

No, MCP server scaffolding includes all necessary project structure and dependencies. You start with src/index.ts, tsconfig.json, and package.json, then install dependencies and run npm start. The Skill provides the foundation—you define your tools and integrate external data sources or APIs as needed.