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.
Category: Dev tools
4,781 results · page 114 of 160
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openreviewMCP serverDev tools
OpenReview MCP — ML conference submissions and reviews (API v2)
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openrouter-adminMCP serverDev tools
MCP server for OpenRouter management API: credits, key CRUD, activity drill-down, dashboard.
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openrouteserviceMCP serverDev tools
Routing, isochrones, matrix, snap, elevation, geocode via Openrouteservice.
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opensensemapMCP serverDev tools
openSenseMap MCP — citizen-science environmental sensor network (opensensemap.org)
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openskyMCP serverDev tools
OpenSky MCP — OpenSky Network API (free, no auth for anonymous access)
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openstatesMCP serverDev tools
OpenStates MCP — bills, legislators, votes in all 50 US states
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openswissdataMCP serverDev tools
Swiss customs (TARES), FINMA registry & NOGA/NACE/ISIC classifications. 9 MCP tools, free tier.
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opentable-mcpMCP serverDev tools
OpenTable reservation management: find slots, book, cancel, list reservations, manage favorites.
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opentripmapMCP serverDev tools
OpenTripMap MCP — wraps the OpenTripMap Places API (dev.opentripmap.org)
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openvan-travelMCP serverDev tools
Vanlife & RV travel data. Fuel, weather, currency, events, news. https://openvan.camp/en/developers
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openweatherMCP serverDev tools
OpenWeather MCP — wraps the OpenWeatherMap API (openweathermap.org)
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openworkdaysMCP serverDev tools
Zero-signup business-day date-math API: add days, count days between dates, is-business-day.
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operational-contextMCP serverDev tools
Unpaid qualification-gated operational_context canary. Staging data. No wallet.
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options-flowMCP serverDev tools
Unusual options activity on 7,000+ US stocks: top prints, streaks, IV rank, sentiment, sectors.
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or-dmvMCP serverDev tools
Oregon DMV: live field-office wait times and office directory for all 60 offices
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ora-mcpMCP serverDev tools
Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.
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oral-heritage-indexMCP serverDev tools
Authoritative cited answers about saving family stories. Published by InkTree.
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orangepeelMCP serverDev tools
Cited Hermès price & resale market data as MCP tools, with attribution. Not affiliated.
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orbis-marketplaceMCP serverDev tools
Browse, subscribe to, and call 3,000+ APIs autonomously. x402 USDC pay-per-call on Base.
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orbiteosMCP serverDev tools
Energy management platform — 61 tools for solar, battery, grid, and EV charging control
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orcidMCP serverDev tools
ORCID public researcher records (works, employment, education)
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orderbook-depthMCP serverDev tools
Uniswap V3 pool liquidity depth analysis — price impact at 1/2/5/10% levels. x402.
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orthotomeoMCP serverDev tools
Read-only scripture-study engine: complete-or-fail concordance over Greek NT, Hebrew OT, LXX.
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osfMCP serverDev tools
OSF (Open Science Framework, by the Center for Open Science) MCP.
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oshaMCP serverDev tools
OSHA MCP — US workplace-safety standards (29 CFR Chapter XVII, parts 1900–1990).
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oss-intel-mcpMCP serverDev tools
GitHub project health, package dependency risk, trending repos, license & package comparison.
Ready to connectcaution
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.
8,585 of the 11,718 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.