MCP servers.
Connect a server the community built.
An MCP server is a program somebody else built that gives your AI new tools: search a service, read a file, call an API.
Connect one here and Claude, Claude Code, ChatGPT, Codex and Cursor all reach it through a single endpoint, with your key held on the server side.
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11,663 results · page 374 of 389
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universitiesMCP serverDev tools
Universities MCP — Hipolabs Universities API (free, no auth)
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unpaywallMCP serverDev tools
Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
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unplainMCP serverDocs & knowledge
Your assistant writes the ebook or report; Unplain designs it and returns a publish-ready PDF.
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unremind-meMCP serverDev tools
Context-aware reminders that surface when your situation matches, not at a fixed time.
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unshiftMCP serverWeb & browsing
Turn Claude or ChatGPT into a website builder that ships a real site to a live URL you own.
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untap-mcpMCP serverDev tools
UK refunds inside your AI assistant: train delays, flights, TfL, parking. Made in London.
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unwrangleMCP serverDev tools
Unwrangle MCP — cross-retailer product + reviews data (unwrangle.com)
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upapi-mcpMCP serverWeb & browsing
All public upAPI operations as MCP tools: web scraping, search, screenshots, PDF, OCR and more.
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upgrade-agentMCP serverAI & models
Travel-upgrade Q&A, live booking eligibility, and operator lookups for airline, cruise, rail.
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upgradelensMCP serverSecurity
npm/PyPI/Django dependency upgrades: security, runtime compatibility, migration, package ranking.
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upkeep-mcpMCP serverWeb & browsing
Website maintenance checks: domains, SSL, uptime, technical SEO and accessibility
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uploadcheckMCP serverMedia
QC videos, podcasts, and clips before upload — timestamped flags with agent-ready repair prompts.
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upriverMCP serverDev tools
Know what's gaining traction online: breakout topics in tech, sports & politics, with citations.
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uproadMCP serverDev tools
Share prototypes as private links clients open without an account, attach specs, read comments.
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uptocodeMCP serverAI & models
Evidence-backed architecture-quality analysis for Python agent applications.
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urantia-papersMCP serverDev tools
Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.
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url-metadata-apiMCP serverMedia
Given a URL, returns title/description/preview-image/site_name from its OpenGraph/meta tags.
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url-normalizeMCP serverDev tools
Return origin, host, and path. Query and fragment are dropped.
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url-shortenerMCP serverCommerce & finance
Shorten URLs with hash-based codes or custom aliases. x402 micropayment.
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url-to-markdownMCP serverWeb & browsing
Convert any webpage to clean LLM-ready markdown, extraction-first, with article and news modes.
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urlhausMCP serverDatabases & data
URLhaus MCP — wraps abuse.ch URLhaus malware URL database (free, no auth)
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urlscan-ioMCP serverSearch
urlscan.io URL scanner — search/result keyless, submit needs key
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uruguay-invoice-mcpMCP serverCommerce & finance
Uruguay DGI e-Factura (CFE): AI agents submit signed sobres to DGI e-invoicing, stateless forwarder.
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uruguay-payments-mcpMCP serverCommerce & finance
Uruguay payments for AI agents — Mercado Pago wallet via Mercado Pago. Never holds funds.
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us-auctionsMCP serverDev tools
Live US auction lots and sold prices from commercial auction houses and government surplus
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us-census-mcp-serverMCP serverDev tools
Query US Census Bureau data: demographics, economics, and housing statistics.
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us-dmvMCP serverDev tools
US state DMV data: vehicle and EV registrations, office locators, live wait times
Ready to connectcaution
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us-economic-macro-sec-edgar-onchain-dataMCP serverDev tools
21 paid tools: US macro data, SEC EDGAR filings, on-chain EVM reads. Settled in USDC on Base.
Ready to connect
What is an MCP server?
The Model Context Protocol is the open standard AI clients use to call tools. An MCP server is a program that answers those calls: it publishes a few tools with their inputs, and the AI decides when to use them. Most are written by the people who needed them and published as open source, which is why this list is long and uneven.
8,426 of the 11,663 servers listed here can be served through ahel today. The rest stay listed so you can find them and read what they do, and their pages say plainly that ahel cannot serve them yet.
Connect one to Claude, Cursor, Codex or ChatGPT
Connecting a server here does not put anything on your machine. ahel runs it and serves its tools to every AI client you sign in with, so one connection covers Claude, Claude Code, ChatGPT, Codex, Cursor and VS Code with Copilot.
Your client's tool list stays the same size whatever you connect: a server's own tools are read with the tools verb and run with the use verb. Keys are sealed in ahel and injected server side, so a credential never crosses the link.