Which integrations are available for this server?

Provides tools to load and explore OpenAPI/Swagger specifications, including searching endpoints, inspecting schemas, and retrieving operations from a given API spec.

How do I use openapi-mcp?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@openapi-mcp load the Petstore API spec" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

openapi-mcp

by ceski23

Overview Schema Related Servers Score Discussions

TypeScript

Hybrid

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, retrieve operations, diff versions — all through MCP tools.

Usage

Prerequisites

Node.js >= 22 or Bun >= 1.0
oasdiff (optional) — required only for the diff_specs tool. Install from github.com/oasdiff/oasdiff.

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.

Related MCP server: apifable

Tools

Tool	Description
`load_spec`	Load an OpenAPI/Swagger spec from a URL or local file path. Parses and validates the spec, returns a `specId` for use by other tools.
`find_operations`	Search operations in a loaded spec by operationId, path, summary, tags, or description. Supports filtering by HTTP method and tags, with pagination.
`get_operation`	Get full details for a single operation by operationId — method, path, parameters, requestBody, and responses.
`get_path`	Get all HTTP methods defined on a specific path. Returns a summary of each method.
`find_schemas`	Search component/definition schema names in a loaded spec. Supports pagination.
`get_schema`	Retrieve a fully dereferenced component/definition schema by name.
`search_contract`	Search both operations and schemas in a single call — matches against operationIds, summaries, tags, paths, schema names, schema descriptions, property names, and enum values. The best first call when exploring an API.
`diff_specs`	Compare two loaded OpenAPI specs. Supports summary, detailed (JSON), and markdown changelog output. Requires `oasdiff` on PATH.
`list_cached_specs`	List all currently cached specs with their specIds, sources, titles, and versions.
`list_versions`	List all cached versions for a specId (tracked across repeated loads of the same source).
`unload_spec`	Remove a loaded spec (and its version history) from the cache by specId.

This server cannot be installed

license - permissive license

quality - not tested

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

2wRelease cycle

3Releases (12mo)

Commit activity

Resources

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