Best API AI Skills & MCP Servers
648 curated API skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Delx
Native MCP stdio bridge for Delx Protocol: continuity, witness, recovery, agent passport, and 100+ tools from https://api.delx.ai/v1/mcp.
Tinyfish
基于 TinyFish 免费搜索 API 的 MCP(Model Context Protocol)服务,提供网络搜索与网页内容抓取能力。支持 Stdio 和 HTTP 两种传输方式接入 Claude Desktop、Cursor、Windsurf 等 AI 客户端。
Korean Dart
OpenDART 83개 API → 15개 MCP 도구. 금융감독원 전자공시(DART)를 AI로 검색·조회·분석
Clirank
MCP server for API discovery and recommendations: help Claude Code, Codex, Cursor, Cline, and other coding agents choose APIs with current CLIRank data instead of stale model memory
Markfetch
MCP server: fetch a URL, return clean markdown. Built for AI agents.
X Developer
X (Twitter) data platform skill for AI coding agents. 100+ REST API endpoints, 2 MCP tools, 23 extraction types, HMAC webhooks.
Nuxt Migration
MCP Server for AI-assisted Nuxt 2/3 to Nuxt 3/4 migration — audits Options API, Vuex, asyncData, ESM compatibility, and generates Pinia/Composable code
Refacil Pay
MCP Server para la API refacil-pay
Mailchimp
Draft, test, and send Mailchimp campaigns straight from your MCP client — with audience management, subscriber CRUD, and post-send analytics behind safe-by-default send gates. STDIO or Streamable HTTP.
Brain
Adaptive error memory and code intelligence system with Hebbian synapse network, hybrid search, and REST API
Server
MCP server for Glean API integration
Twitterapi Io
TwitterAPI.io MCP server providing offline access to docs (endpoints, pages, blogs) for Claude and other AI assistants
Companies House Cli
CLI tool for the UK Companies House API — company search, profiles, officers, filings, ownership, and due diligence
Opencode Gitlab Plugin
GitLab tools plugin for OpenCode - provides GitLab API access for merge requests, issues, pipelines, and more
Xlsx For Ai
The MCP server that makes LLMs reliable on real-world Excel spreadsheets. Thin npm client over a hosted API — read, write, diff, redact, and supervise .xlsx files from any MCP-aware agent.
Stockquotes
MCP Server for fetching stock quotes from Yahoo Finance
Cctx Optimizer
Reduce Claude Code token usage by 70-90% with cross-session memory and four-layer optimization: semantic codebase indexing, PostToolUse tool compression, turn summarization, and session consolidation. MCP server powered by Ollama — zero API calls, runs en
Freshcontext
Real-time web intelligence for AI agents. 21 tools, no required API keys. Every result timestamped with a freshness score.
Mcpollinations
Model Context Protocol (MCP) server for the Pollinations APIs with image saving functionality.
Mcp
Stdio MCP server that wraps the ImageTalk backend REST API for use with Claude Desktop and other MCP clients.
Ignis Docs
Interactive documentation site and MCP (Model Context Protocol) server for the Ignis Framework. Includes a VitePress-powered documentation site with guides, API references, and best practices. Ships an MCP server (CLI: ignis-docs-mcp) with 11 tools for AI
Api Testing
The most complete MCP server for API testing. 36 tools: HTTP requests (with token-optimized responses), assertions, request flows, OpenAPI import, mock data, load testing, collections, environments, native export/import, Postman import/export, cURL export
Wildberries Api
MCP server for Wildberries Seller API
Clinicaltrialsgov
MCP server for the ClinicalTrials.gov v2 API. Search trials, retrieve study details and results, and match patients to eligible trials.
About API skills on iClaude
iClaude is the universal install layer for AI skills. Every API skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.