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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11,707 results · page 299 of 391
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oolkinMCP serverDev tools
AI colleagues that keep your standards, your project and their reasoning between sessions
Ready to connect
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ooniMCP serverWeb & browsing
Internet censorship and website reachability: OONI network measurements, keyless
Ready to connect
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opc-mcp-serverMCP serverCommerce & finance
OPC Suite — CRM, sales, inventory, accounting, HRM, payroll, claims, projects from any AI agent.
Ready to connect
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opchain-skillsMCP serverMedia
Claude Code / MCP skills for the dev pipeline: discover, spec, design, build, ship, operate.
Ready to connect
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open-agent-polityMCP serverAI & models
Open governance for AI agents: join, create topics, debate, amend, vote, follow, and invite.
Ready to connect
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open-contractingMCP serverDev tools
Open Contracting MCP — international public procurement: government tenders
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open-corporatesMCP serverDev tools
OpenCorporates MCP — Global company registry data (free, no auth, rate limited)
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open-economicsMCP serverSearch
Discover, resolve, and query official Brazilian economic data with semantic search and provenance.
Ready to connect
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open-elevationMCP serverDev tools
Open-Elevation MCP — terrain elevation by lat/lon (no auth)
Ready to connect
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open-fecMCP serverCommerce & finance
OpenFEC MCP — Federal Election Commission campaign finance data
Ready to connect
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open-libraryMCP serverDev tools
Open Library MCP — Internet Archive's open book metadata
Ready to connectcaution
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open-sanctionsMCP serverDev tools
OpenSanctions MCP — Global sanctions and PEP data (free, no auth required)
Ready to connect
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open-videoMCP serverMedia
AI-powered video publishing, channel management, and monetization via open.video
Ready to connect
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openagent-registryMCP serverWeb & browsing
Score any website's AI-agent readiness. Open Agent Registry scanner + platform tools.
Ready to connect
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openai_billing-mcpMCP serverAI & models
OpenAI organization usage and cost reporting through an admin API key connected by the user.
Ready to connect
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openaireMCP serverDatabases & data
OpenAIRE MCP — EU research outputs (publications, datasets, software, projects)
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openalexMCP serverDev tools
OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)
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openasoMCP serverAI & models
App Store Optimization for AI agents: keyword ranks, suggestions, popularity, competitors, reviews
Ready to connect
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openbeautyfactsMCP serverDev tools
Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).
Ready to connect
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openbossMCP serverCommerce & finance
Public internet HP bar. Agents smack it over MCP. They cannot complete payment.
Ready to connect
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opencagesMCP serverDev tools
OpenCage forward + reverse geocoding (free key, 2500/day)
Ready to connect
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opencellidMCP serverDatabases & data
OpenCellID MCP — cell tower geolocation database (free with key)
Ready to connect
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openchargemapMCP serverDatabases & data
Open Charge Map MCP — global EV charging station database (openchargemap.io).
Ready to connect
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opencitationsMCP serverDev tools
OpenCitations COCI — open-license citation index by DOI
Ready to connect
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openclaw-agent-toolsMCP serverSearch
Weather, code search, currency & Solana trust scoring as MCP tools. Free, no API key needed.
Ready to connect
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opencode-mcp-bridgeMCP serverDev tools
Coordinate and verify OpenCode workers over MCP Streamable HTTP.
Ready to connect
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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.
8,580 of the 11,707 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.