openapi-mcp

openapi-mcp

MCP server for loading and exploring OpenAPI/Swagger specifications, enabling AI assistants to dynamically browse API contracts by loading specs, searching endpoints, inspecting schemas, and retrieving operations.

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OpenApi MCP

MCP server for loading and exploring OpenAPI/Swagger specifications. Lets AI assistants browse API contracts dynamically — load any OpenAPI spec, search endpoints, inspect schemas, and retrieve operations — without needing the spec in-context.

Usage

Manually

Add to your MCP client config:

{
  "mcpServers": {
    "openapi-mcp": {
      "command": "npx",
      "args": ["-y", "@ceski23/openapi-mcp"]
    }
  }
}

Via AI agent

Ask your AI assistant to add it:

Add the MCP server @ceski23/openapi-mcp to my config. Run it with npx -y @ceski23/openapi-mcp via stdio.

Most assistants can modify your MCP config file directly.

Tools

Tool Description
load_spec Load an OpenAPI/Swagger spec from a URL or file path. Returns a specId used by other tools.
find_operations Search operations by operationId, path, summary, tags, or description.
get_operation Get full details for a specific operation by operationId.
get_path Get all HTTP methods defined on a specific path.
find_schemas Search schema/definition names.
get_schema Get a fully dereferenced schema by name.
search_contract Search both operations and schemas in one call.

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