Best API AI Skills & MCP Servers

MCP server and CLI tool for interacting with the Wayback Machine without API keys

X (Twitter) data platform skill for AI coding agents. 100+ REST API endpoints, 2 MCP tools, 23 extraction types, HMAC webhooks.

MCP server for Hacker News — feeds, threads, users, and search via Firebase and Algolia APIs

MCP server and CLI tool for interacting with the Wayback Machine without API keys

MCP (Model Context Protocol) server providing weather data from NOAA and Open-Meteo APIs. Supports forecasts, current conditions, and historical weather data (1940-present) with no API keys required.

EDGAR MCP — SEC EDGAR public APIs (free, no auth)

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.

The fullstack TypeScript framework for MCP and APIs — write one action, serve HTTP, WebSocket, CLI, background tasks, and MCP tools.

Community MCP server for Airtable. Schema inspection, table / field / view CRUD (including merge-safe filter / sort / group updates), formula validation, and extension management. Not affiliated with Airtable Inc.

MCP server for yrdsl.app. Talks to either the hosted API (api.yrdsl.app) or a local self-hosted repo. Lets Claude add, edit, and reserve items on a digital yard sale.

MCP server for CompanyLens — corporate intelligence API for AI agents. Search companies, get profiles, screen sanctions, and check government contracts.

MCP server for earthquake data via USGS Earthquake API — no API key required

MCP server that answers questions about the Chia blockchain via the public coinset.org API

MCP server for OpenAlex API - enabling literature review and research landscaping

Agentic HubSpot CLI + MCP server. Covers ~all documented public endpoints (1180 across 55+ command domains). Reachability is tier/scope/auth-model gated — UI-only surfaces and deprecated APIs excluded. Enterprise safety rails, self-hosted.

MCP server for managing Caddy web servers via the admin API

BuyAPI CLI and MCP server — unbiased vendor intelligence for AI coding agents

Discover and query CDC public health datasets via the Socrata SODA API via MCP. STDIO or Streamable HTTP.

MCP Server for DeepSeek API integration - enables Claude Code to use DeepSeek Chat and Reasoner models

Universal AI API Orchestrator — 1,598 tools across 106 services. UCP (Universal Commerce Protocol), the .0n App Marketplace, AI Course Builder, Lead Magnet Loop, Automation Builder, SaaS Factory, App Builder, Website Builder, and the Agentic Automation Ge

Product search API for AI agents via Model Context Protocol. Search & compare 11M+ products across Singapore, SEA, and US markets. Multi-currency pricing, inventory, and deal discovery — built for AI agent commerce, not store management. - Win the "Build

Telegram MCP server (MTProto). Connect Claude, Codex, Cursor, Claude Code, VS Code, Cline, Windsurf, and other MCP clients to a real Telegram user account: read dialogs, search messages globally, send/edit/forward, react/poll, moderate channels, tag Saved

MCP server providing financial market data from finmap.org

MCP server for the ClinicalTrials.gov v2 API. Search trials, retrieve study details and results, and match patients to eligible trials.