How I Built 13 MCP Server Integrations for Claude Code (With Source Code)
Most MCP tutorials stop at "paste this config." This one goes further. A developer running 13 simultaneous MCP server integrations in Claude Code has published a hands-on breakdown with full TypeScript source for the key implementations. The architecture is anchored in a single ~/.claude.json that wires together Brave Search for real-time web results, GitHub for repository access, Playwright for browser automation, Stripe for payment queries and refund tooling, a filesystem server, and a persistent memory server — among others.
The three integrations documented in depth are instructive beyond the specific use cases: each shows how to declare tools with server.tool(), wire them through StdioServerTransport, handle async calls cleanly, and return typed JSON that Claude can reason about reliably. The included mcpServers config block serves as a working starting template. For developers building their own MCP servers rather than consuming published ones, this is a rare worked example from someone with genuine production mileage across a diverse tool stack.