MCP OpenAPI Bridge

Example Use Cases

• 1

  Call REST APIs directly from OpenAPI or Swagger specs without manual tool definitions.

• 2

  Flattened parameter schemas to improve accuracy in tool invocation.

• 3

  Built-in support for authentication, retries, and response truncation to handle API calls robustly.

Description

mcp-openapi transforms any OpenAPI 3.x or Swagger 2.0 specification into Model Context Protocol (MCP) tools without requiring code generation or configuration files. It flattens parameters for improved LLM tool-calling accuracy, supports built-in authentication methods, retries, and response truncation to fit LLM context limits. This enables AI assistants like Claude to directly call REST API endpoints as tools, simplifying integration and enhancing usability.