MCP Server Builder: Turn Any API Into an MCP Tool in Minutes

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**TL;DR:** Turn any REST or GraphQL API into a fully-documented MCP server with type-safe schemas and streamable-http transport — in under 10 minutes.

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The 10-Second Pitch

• **What it is:** A code generation agent that reverse-engineers your API and emits a production-ready MCP server.
• **Who it's for:** Platform engineers building internal toolchains, AI architects wiring up proprietary APIs.
• **Why it matters:** MCP is the emerging standard for agent-tool communication.
• **Stack:** Node.js, TypeScript, outputs to your existing repo.

Setup Directions

Prerequisites

• Node.js >= 20
• An API to document (OpenAPI 3.x spec helps)

Step 1 - Install

npm install @mrtech/mcp-server-builder

Step 2 - Generate

npx mcp-server-builder generate --api-url https://api.yourservice.com/openapi.json --auth-type bearer

Pros / Cons

Verdict

MCP Server Builder solves the "last mile" problem in AI tooling: getting your proprietary APIs into the tools your agents can call. It's not magic, but it eliminates the boilerplate that's been blocking AI platform adoption.

*Skill: mcp-server-builder | Ecosystem: claude-code | Runtime: node | Auth: api-key*