API integration MCP servers & tools

13 Model Context Protocol servers tagged “API integration”, ranked by usage. Connect any of them to Claude Desktop, Cursor or Windsurf in one step.

What qualifies: Turns an arbitrary REST, OpenAPI or GraphQL API into tools, or makes generic HTTP requests. Each server was checked against this, not tagged by keyword.

Search “API integration” with filters

HAL
HAL (HTTP API Layer) - An MCP server that provides HTTP API capabilities to Large Language Models
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 38
MCP Browser Agent
imprvhub
A Model Context Protocol (MCP) integration that provides Claude Desktop with autonomous browser automation capabilities.
Browser Automation
Upvotes: 0Installs: 0GitHub stars: 43
API Testing MCP
cocaxcode
The most complete API testing MCP — Postman inside your AI assistant. Per-project environment groups with {{variable}} interpolation, saved collections, multi-step flows with response extraction, assertions, load testing, and OpenAPI mock generation. 42 tools, zero cloud account needed.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 13
Postmancer
hijaz
A MCP server for replacing Rest Clients like Postman/Insomnia, by allowing your LLM to maintain and use api collections.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 29
Web Access
The most accurate web access API. Stop getting blocked.
Search & Data Extraction
Upvotes: 0Installs: 0GitHub stars: 5
Rest API MCP
Muhammed-AbdelGhany
MCP server for authenticated REST API calls — auto-login, token caching, 2FA/OTP support, Swagger spec fetch, and fuzzy endpoint search. Works with any REST API without writing auth code.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 6
Openapi Dynamic
Load OpenAPI 2.x/3.x specs and expose generic tools to discover and call multiple APIs
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 1
Github Graphql MCP Server
QuentinCody
Unofficial GitHub MCP server that provides access to GitHub's GraphQL API, enabling more powerful and flexible queries for repository data, issues, pull requests, and other GitHub resources.
Version Control
Upvotes: 0Installs: 0GitHub stars: 13
Openapi MCP Gateway
mroops0111
Mount many OpenAPI specs (or your existing FastAPI app) as MCP servers in one process. Auto-promotes eligible GETs to MCP resources, exposes huge specs via three list/get/call meta-tools instead of N tool schemas, and ships per-user OAuth2 token relay with audience-bound tokens.
Aggregators
Upvotes: 0Installs: 0GitHub stars: 7
Tor MCP
Route HTTP requests through the Tor network. Rotating exit IPs, .onion support, no body logging.
Security
Upvotes: 0Installs: 0GitHub stars: 1
Essentials
Essential MCP server: HTTP, web search, downloads, Wolfram|Alpha, shell, JS, file I/O, memory.
Knowledge & Memory
Upvotes: 0Installs: 0GitHub stars: —
API
HTTP client, JWT decode, header analysis for AI agents
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
OpenAPI APIs
MCP server that fronts any OpenAPI service: discover operations from its spec and call them
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —