Turn your OpenAPI contract into agent-ready tools
Use the schema you already maintain as the starting point for an MCP server. Make your API discoverable and callable by compatible AI clients.
Your OpenAPI spec already contains the map agents need.
Teams invest in OpenAPI to make APIs understandable to developers. MCP extends that reach to AI clients, but manually translating every operation creates a second contract to maintain.
InstantMCP.io uses your OpenAPI or Swagger source to generate an MCP surface around the operations and schemas you already publish. You can review the result in the language of tools, inputs and outcomes.
That gives your API a practical path into agent workflows without asking your team to duplicate every change in a custom MCP adapter.
Give every operation a chance to become a useful action.
OpenAPI provides the structure. Your team decides which generated surface is valuable for agents.
Schema-aware inputs
Carry parameters and request structure into tool definitions that clients can use.
A familiar source
Start from the API contract your developers already review and publish.
Less adapter code
Avoid maintaining a parallel hand-written layer for every API operation.
From API contract to MCP endpoint.
Use your existing schema as the shortest route to agent access.
- 01
Connect the spec
Provide an OpenAPI or Swagger document that describes the API you want to expose.
- 02
Map the operations
Review the candidate tools created from paths, methods, parameters and schemas.
- 03
Refine the surface
Keep the actions and descriptions that make sense for an agent workflow.
- 04
Connect the server
Use the hosted MCP URL in the clients and agents that need your API.
OpenAPI to MCP questions
Yes. Swagger and OpenAPI specifications are supported sources for generating MCP tools from API operations and schemas.
Three steps. Zero code.
Connect a source
Drop a URL, upload docs, or sync a repo. We support websites, PDFs, Markdown, Notion, OpenAPI and more.
We generate the MCP
Our pipeline extracts structure, defines tools and resources, and writes the MCP server for you.
Ship it everywhere
Get a hosted endpoint instantly. Plug it into Claude, Cursor, ChatGPT or any MCP client.