api MCP servers & tools

MCP server that automatically converts any OpenAPI/Swagger specification into a set of usable MCP tools. Unlike manual tool definition, this approach auto-generates tools directly from the Swagger spec, ensuring consistency, reducing maintenance effort, and preventing mismatches between the tools and the actual API.

Model Context Protocol server for GraphQL

Turn any OpenAPI spec into callable MCP tools for Claude. Point at any OpenAPI 3.x spec and Claude can call every endpoint through natural language. Supports Bearer, API key, and Basic auth.

Star Wars API (SWAPI) as a remote MCP server: films, people, planets, species, starships, vehicles.

A zero-configuration Go library to automatically expose existing Gin web framework APIs as MCP tools.

An MCP server that provides access to Postman.

MCP Server for RestCSV, Generated using MCPGen

⃣ ☁️ - Lightweight MCP server to access any API using their OpenAPI specification. Supports OAuth2 and full JSON schema parameters and request body.

Search, compare & filter 102,191 European car variants — 180 specs, 19 languages, EV data.

MCP server for AI access to SmartBear tools, including BugSnag, Reflect, API Hub, PactFlow.

OpenAPI-MCP: Dockerized MCP Server to allow your AI agent to access any API with existing api docs.

MCP server for Dash, the macOS API documentation browser. Instant search over 200+ documentation sets.

A lightweight, configuration-driven MCP server that exposes curated GraphQL queries as modular tools, enabling intentional API interactions from your agents.

Kanban where AI agents are first-class users — real seats, real API, no AI credit meters.

Hosted MCP endpoint — 46 tools + 300+ REST endpoints. Free tier, no API keys, no signup.

AI predictions on psychedelic medicine regulation. 8-agent swarm, 460+ daily signals, free API.

Angel number meanings and repeating sequences like 111, 222, 333 for AI agents.

Biorhythm cycles, forecasts, critical days and compatibility for AI agents, one API key.

URL-to-Markdown API for AI pipelines — clean markdown with metadata and caching.

Turn any OpenAPI/Swagger spec into MCP tools. Zero config, zero code.

MCP Server for Apache Airflow

MCP server that exposes GraphQL operations as tools for AI models.

Free API-first hosted changelog with a remote MCP server at https://wakelog.wakelog.workers.dev/mcp — agents can create an account (signup tool, no email/CAPTCHA) and create, list, and lint changelog entries natively.

Send individual transactional faxes with prepaid credit, delivery status, and safeguards.

Similarweb: Similarweb API allows you to access powerful insights into web analytics and online.

IP Geolocation: This API provides fast, reliable, and developer-friendly IP geolocation, ASN.

Tenant-scoped control plane over the TeleQuick platform's full API surface

Turn any OpenAPI REST API into an MCP server so AI agents can call it — zero dependencies

Cloudflare Workers MCP server: api-contract-validator

Rick and Morty MCP — wraps The Rick and Morty API (free, no auth)