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What is MCP Blacksmith?

MCP Blacksmith transforms OpenAPI specifications into fully functional Model Context Protocol (MCP) servers. Upload a specification, and get complete Python code — with authentication, security, and validation — ready to deploy anywhere. You own every line of generated code. Download it, modify it, deploy it, sell it. No attribution, no royalties, no lock-in.

Quickstart

Generate your first MCP server in under 2 minutes.

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What is MCP?

The Model Context Protocol (MCP) is an open standard for connecting AI applications to external systems. It defines a universal interface for AI agents to discover and call tools. MCP Blacksmith generates these MCP servers from OpenAPI specifications. Each generated server wraps an API and exposes its operations as tools that any MCP-compatible AI client can call: 
AI Agent
  ├── MCP Server: Gmail API
  ├── MCP Server: Stripe API
  ├── MCP Server: GitHub API
  └── MCP Server: Your Internal API
The server handles authentication, request formatting, error handling, and validation transparently — the AI agent sees simple tools with typed parameters.

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Who is MCP Blacksmith for?

  • Developers who need MCP servers for their APIs without weeks of manual coding
  • Teams integrating multiple APIs into AI agent workflows
  • Companies wanting to expose their APIs to AI agents securely
  • Anyone building with MCP-compatible AI tools and IDEs
You don’t need deep technical expertise to generate MCP servers. All you need is an OpenAPI specification for the API your agent needs access to.

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What you get

Production-ready code

Full Python server with FastMCP framework, Pydantic validation, and typed models.

Auto-configured authentication

Extensive support for OAuth2, API Key, JWT, Bearer, Basic, OIDC, and mTLS. See supported security schemes.

Built-in security

Circuit breakers, exponential backoff, rate limiting, and multi-layer timeouts.

Deploy anywhere

Download the server with all dependencies. Run locally, in Docker, or on any cloud.

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Next steps

Quickstart

Generate your first server in 2 minutes.

How it works

Understand the generation pipeline.

Server structure

What’s inside a generated server.

Connect to agents

Use your server with any MCP client.