Best MCP Servers for API Integration
Top-ranked MCP servers for REST API access, GraphQL, webhooks, and no-code integrations like Zapier and n8n. Scored from the AgentRank index.
API integration MCP servers let AI agents connect to external services — REST APIs, GraphQL endpoints, webhooks, and no-code platforms — without writing custom integration code for every service. They act as a universal adapter layer between your agent and the services your product depends on.
This guide ranks the top API integration MCP servers from the AgentRank index. These range from generic REST adapters that let you hit any API endpoint, to purpose-built connectors for platforms like Stripe, GitHub, Notion, and Linear.
Top API Integration MCP servers
Ranked by the composite AgentRank score — a weighted blend of stars (15%), freshness (25%), issue health (25%), contributors (10%), and inbound dependents (25%). Average score across these 8 tools: 71.4.
| # | Repository | Score | Stars | Lang | Updated |
|---|---|---|---|---|---|
| 1 | ivo-toby/mcp-openapi-server MCP Server (Model Context Protocol) for turning OpenAPI specifications into a MCP Resource | 85.3 | 241 | TypeScript | 7d ago |
| 2 | janwilmake/openapi-mcp-server Allow AI to wade through complex OpenAPIs using Simple Language | 83.4 | 887 | TypeScript | 25d ago |
| 3 | line/line-bot-mcp-server MCP server that integrates the LINE Messaging API to connect an AI Agent to the LINE Offic… | 81.7 | 529 | TypeScript | 1d ago |
| 4 | RekklesNA/ProxmoxMCP-Plus Enhanced Proxmox MCP server with advanced virtualization management and full OpenAPI integ… | 72.6 | 92 | Python | 12d ago |
| 5 | harsha-iiiv/openapi-mcp-generator A tool that converts OpenAPI specifications to MCP server | 66.0 | 544 | TypeScript | 15d ago |
| 6 | dtkmn/mcp-zap-server A Spring Boot application exposing OWASP ZAP as an MCP (Model Context Protocol) server. It… | 61.9 | 41 | Java | 5d ago |
| 7 | Xquik-dev/x-twitter-scraper X (Twitter) automation skill for AI coding agents. 60+ API endpoints, 20 MCP tools. Tweet … | 60.0 | 17 | — | 5d ago |
| 8 | koriyoshi2041/agentify Agent Interface Compiler — One command. Every agent speaks your product. Transform OpenAPI… | 60.0 | 17 | TypeScript | 5d ago |
Choosing by use case
- Generic REST adapters
- Hit any HTTP endpoint with a configurable MCP server — useful for private APIs and internal services.
- GitHub & GitLab
- Read repos, create issues, review PRs, and trigger CI/CD pipelines from inside your agent.
- Productivity APIs (Notion, Linear, Jira)
- Read and write to project management tools, wikis, and issue trackers.
- No-code platforms (Zapier, n8n)
- Trigger automation workflows from your agent via Zapier webhooks or n8n HTTP nodes.
Quick setup
Most MCP servers follow the same config pattern. Add this to your Claude Desktop, Cursor, or Windsurf MCP config file:
{
"mcpServers": {
"github": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-github"],
"env": { "GITHUB_PERSONAL_ACCESS_TOKEN": "<token>" }
}
}
}See the integrations page for platform-specific setup guides for Claude Code, Cursor, VS Code, Windsurf, and Cline.
Reading the AgentRank signals
Each tool in this guide is scored on five signals that predict long-term reliability:
| Signal | Weight | What it means |
|---|---|---|
| Stars | 15% | Raw popularity — how many developers have found and bookmarked this tool |
| Freshness | 25% | Days since last commit — tools with no recent commits decay hard after 90 days |
| Issue health | 25% | Ratio of closed to total issues — measures maintainer responsiveness |
| Contributors | 10% | More contributors = less bus-factor risk, broader review surface |
| Dependents | 25% | How many other repos depend on this — the strongest signal of real-world adoption |
Query this live from your editor: Install AgentRank in Cursor, VS Code, or Claude Code — your AI agent can query live rankings on demand.
Missing a tool? Submit it to the index — new tools are scored in the next nightly crawl.
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