Discover MCP Servers

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Pay-per-call x402 gateway for AI agents — MCP server + OpenAI-compatible API for agent tools, market data, RPC, and MCP security audits. Pay in USDC on Base, no account.

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Universal MCP Server for finding + connecting to agents anywhere on the planet. https://hol.org/mcp

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Zero-dependency MCP gateway - attach, filter, gate, and observe MCP servers through one funnel.

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First-edition identification — points of issue, number-line decoding, and publisher rules over a CC-BY, DOI-cited dataset of 6,717 titles — plus New Mexico book-donation logistics. Hosted remote server, no auth. Endpoint: https://newmexicoliteracyproject.org/api/mcp · Registry: `org.newmexicoliteracyproject/nmlp-mcp`

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OpenAPI-generated MCP server for TokenLab text, image, video, music, 3D, audio, files, embeddings, rerank, translation, and async tasks.

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A Model Context Protocol (MCP) server that provides AI assistants with access to the Smithsonian Institution's Open Access collections.

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Give your AI agent the ability to read Chinese Bazi (八字) charts — an open-source MCP server 🔮

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Sleep disruption cause classifier MCP server from The Longevity Vault

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Healthcare billing MCP server — 20 AI tools for ICD-10, CPT, HCPCS lookup (81,769 codes with RVU + OPPS pricing), prior auth prediction, claims validation, denial-risk scoring, and NPI/drug enrichment. 10 free credits, then x402 USDC or Stripe.

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Open music notation MCP server for AI agents. Render JSON scores to SVG, MusicXML, and MIDI. Sponsored by Gradus School of Music Composition.

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Turn any OpenAPI/Swagger API into an MCP server with real OAuth2 support. Multi-spec gateway for Claude, Cursor, Codex, and other MCP clients.

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MCP Server - Bridge to OpenAI API. Part of HumoticaOS/SymbAIon ecosystem.