Convert Any API to MCP in 30 Seconds β Free & Open Source
Your REST API is already 90% of an MCP server. Our free converter bridges the last 10% β paste your OpenAPI spec, get a working MCP server config instantly.
The Problem: Every API Is an Island
There are millions of REST APIs in the world. There are thousands of AI agents looking for tools. But connecting the two requires manual work β writing MCP server definitions, mapping endpoints to tools, handling authentication schemes. Until now.
AgentForge's OpenAPI-to-MCP Converter bridges this gap in 30 seconds. Paste your OpenAPI 3.0/3.1 or Swagger 2.0 specification, click convert, and get a fully structured MCP server definition ready for any AI agent.
What Is MCP and Why Does Your API Need It?
Model Context Protocol (MCP) is the open standard that lets AI agents discover and use external tools. Think of it as the USB-C for AI integrations β one protocol, universal compatibility. Without MCP, your API is invisible to the growing ecosystem of AI agents. With MCP, every agent in the world can find and use your service.
How the Converter Works
The conversion process is straightforward:
- Step 1: Paste your OpenAPI/Swagger spec (YAML or JSON) or drag-and-drop a file
- Step 2: The converter parses every endpoint and maps it to an MCP tool definition
- Step 3: Authentication schemes (API key, OAuth2, Bearer) are detected automatically
- Step 4: You get a complete MCP server config with all tools, schemas, and metadata
Real Example: Petstore API
Take the classic Petstore API with 13 endpoints. Our converter produces 13 MCP tools in under a second β findPetsByStatus, addPet, getOrderById, and more. Each tool has properly typed input schemas, descriptions from your spec, and the correct HTTP method mapping.
The result? An AI agent can immediately say: "I found 3 available pets matching your criteria. Want me to place an order?"
Why Free When Competitors Charge $200/month?
Paid conversion tools exist β and they charge $100-200/month for essentially the same transformation. We believe MCP adoption should have zero friction. The more APIs that become MCP-compatible, the more valuable the entire agent ecosystem becomes. That includes AgentForge's registry of 106+ servers and 400+ tools.
Our converter is open source, runs entirely in your browser, and never sends your API spec to any server. Your intellectual property stays yours.
From Conversion to Discovery
After converting, you can publish your new MCP server directly to the AgentForge registry. That means instant discoverability by AI agents worldwide β no marketing budget required. Your API goes from invisible to findable in under a minute.
Ready to make your API agent-ready? Try the converter now at /tools/convert β it takes 30 seconds and costs nothing.