rmcp-openapi

What it does

rmcp-openapi is a high-performance Rust-based bridge that transforms OpenAPI specifications into Model Context Protocol (MCP) tools. It allows any AI assistant to interact with REST APIs by dynamically generating tools based on the API's specification, handling parameter mapping and response schemas automatically.

Tools

Tools are generated dynamically based on the provided OpenAPI spec. For example, using the Petstore API:

• addPet: Create a new pet entry.
• findPetsByStatus: Search for pets based on their status.
• getPetById: Retrieve a specific pet's details.
• updatePet: Update existing pet information.

Installation

Install the server binary using cargo:

cargo install rmcp-openapi-server

To integrate with Claude Desktop, use the following configuration:

{
  "servers": {
    "petstore-api": {
      "command": "rmcp-openapi-server",
      "args": ["https://petstore.swagger.io/v2/swagger.json", "--port", "8080"]
    }
  }
}

Supported hosts

• claude
• cursor
• windsurf