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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12,636 results · page 281 of 422

  • jp-biz-opportunityMCP serverAI & models

    Japanese public-sector business opportunities for AI agents: tenders, subsidies, sanctions. x402.

    Ready to connect

    github.com/kodandy/jp-biz-opportunity-mcp

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  • jp-calendarMCP serverProductivity

    Japanese holiday and business-day calculations using official Japan Cabinet Office data.

    Ready to connect

    github.com/plugrail/servers

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  • jp-corporateMCP serverEverything else

    Japanese corporate number lookup using official National Tax Agency public data.

    Ready to connect

    github.com/plugrail/servers

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  • jp-crypto-tax-rulesMCP serverCommerce & finance

    Machine-readable Japanese crypto-asset tax rules for AI agents: rules-as-code with citations, x402.

    Ready to connect

    github.com/kodandy/jp-crypto-tax-rules-mcp

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  • jp-m2m-gatewayMCP serverAI & models

    Raw Japanese regulatory data for AI agents: pension, gazette, gBizINFO. x402-metered (USDC).

    Ready to connect

    github.com/kodandy/jp-m2m-mcp

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  • jpl-fireball-mcpMCP serverDev tools

    Fireball impact data from NASA JPL. No key required.

    github.com/mrfentmen/jpl-fireball-mcp

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  • jpl-sbdb-mcpMCP serverDatabases & data

    Asteroid and comet data from the NASA JPL Small Body Database. No key required.

    github.com/mrfentmen/jpl-sbdb-mcp

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  • jpl-ssdMCP serverDev tools

    NASA/JPL Solar System Dynamics + CNEOS MCP.

    Ready to connect

    github.com/pipeworx-io/mcp-jpl-ssd

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  • jpyc-agent-mcpMCP serverSecurity

    OAuth-protected JPYC wallet, transfer, and contract workflows on Polygon.

    Ready to connect

    github.com/yourbright-jp/jpyc-agent-mcp

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  • jsdelivrMCP serverDev tools

    JSDelivr Data API MCP

    Ready to connect

    github.com/pipeworx-io/mcp-jsdelivr

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  • json-chamber-mcpMCP serverDev tools

    Two-key JSON seal/open. Cloak needs a live license. Open is keys-only.

    github.com/ceedot-rock/json-chamber-mcp

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  • json-checkMCP serverDev tools

    Check whether text is valid JSON. The body is discarded.

    Ready to connect

    github.com/sadri-dridi/json-check-mcp

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  • json-repair-mcpMCP serverCommerce & finance

    Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.

    github.com/grupoanesthy-spec/json-repair-api

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  • json-schema-store-mcpMCP serverDev tools

    Browse the JSON Schema Store catalog. No key required.

    github.com/mrfentmen/json-schema-store-mcp

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  • json-tools-mcpMCP serverDev tools

    Validate, format, and inspect JSON locally. No network and no key.

    github.com/mrfentmen/json-tools-mcp

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  • json-validatorMCP serverCommerce & finance

    JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.

    Ready to connect

    github.com/br0ski777/json-validator-x402

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  • jsoncanvasMCP serverSearch

    Create, validate, edit, export (markdown/svg/png/mermaid), and search JSON Canvas files.

    Ready to connect

    github.com/mcpcentral-io/jsoncanvas-mcp

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  • jsonlifyMCP serverDev tools

    Validate and convert JSONL fine-tuning data across 11 AI providers. 13 tools.

    Ready to connect

    github.com/irmasemma/jsonlspageneral

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  • jsonplaceholderMCP serverDev tools

    JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)

    Ready to connect

    github.com/pipeworx-io/mcp-jsonplaceholder

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  • jsonplaceholder-mcpMCP serverDev tools

    Placeholder JSON test data. No key required.

    github.com/mrfentmen/jsonplaceholder-mcp

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  • jsonschemaMCP serverDev tools

    JSON Schema validation MCP.

    Ready to connect

    github.com/pipeworx-io/mcp-jsonschema

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  • jsonshelfMCP serverAI & models

    Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.

    Ready to connect

    github.com/walkojas-boop/jsonshelf

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  • jsonshimMCP serverAI & models

    Recovers malformed LLM JSON. MCP build: 218/300 on MALFORMED-300 (library build 282/300).

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  • jtr-holidaysMCP serverSearch

    Search tours, attraction tickets, and holiday packages across 24 countries.

    Ready to connect

    github.com/jtr-holidays/jtr-holidays-mcp

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  • jucesp_certidao_simplificada-mcpMCP serverDev tools

    Issues the simplified certificate of a company at JUCESP. Platform-hosted, no credentials, pay per q

    Ready to connect

    github.com/mcp-dir/jucesp_certidao_simplificada-mcp

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  • jucesp_documento-mcpMCP serverDocs & knowledge

    Downloads a filed company document at JUCESP by NIRE and registration number. Platform-hosted, no cr

    Ready to connect

    github.com/mcp-dir/jucesp_documento-mcp

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  • jucesp_documentos-mcpMCP serverDocs & knowledge

    Lists a company's filed documents at JUCESP by NIRE. Platform-hosted, no credentials, pay per query

    Ready to connect

    github.com/mcp-dir/jucesp_documentos-mcp

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  • jucesp_ficha_completa-mcpMCP serverDev tools

    Full company registration sheet at JUCESP (registration, status and history). Platform-hosted, no cr

    Ready to connect

    github.com/mcp-dir/jucesp_ficha_completa-mcp

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  • jucesp_ficha-mcpMCP serverDev tools

    Simplified company registration sheet at JUCESP (by CNPJ, NIRE or name). Platform-hosted, no credent

    Ready to connect

    github.com/mcp-dir/jucesp_ficha-mcp

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  • jucesp_licenciamento-mcpMCP serverDev tools

    Public business licensing lookup at the São Paulo Board of Trade (JUCESP) by CNPJ. Platform-hosted,

    Ready to connect

    github.com/mcp-dir/jucesp_licenciamento-mcp

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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.

8,835 of the 12,636 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.

See how to connect your AI