3fe10fc4c6Adds polygraph (https://polygraph.so) to the **Other** section of `docs/community-projects.md`, per the *Adding Your Project* instructions (one-line entry). polygraph publishes independent behavioral security grades (A–F) for MCP servers from an open, reproducible harness (https://github.com/polygraphso/litmus) — it exercises a server's live tool surface and grades what it does (tool-output injection, undeclared egress, sensitive-data handling, adversarial-input robustness), then publishes the results as an adoption-ranked index with per-server reports. It reads the official registry to discover and version servers, and adds the independent ratings layer this project's docs note downstream aggregators can provide. One-line entry only; no code or schema changes.
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Community Projects
The following is a list of notable community-driven projects in the ecosystem related to the MCP Registry.
Featured Projects
Browsers 🔎
Browse the official MCP Registry in your browser!
- MCP Bench🔎 - Explore the MCP registry with richer filters, community stars, and LLM-generated classification tags.
- MCP Registry Database🔎 - A minimal, web browsable, live database of the official MCP Registry source code.
- TeamSpark AI Server Registry🔎 - Browse and discover servers from the official MCP Registry (source code).
- MCP Registry UI🔎 - A fully client‑side app to search, filter, configure, and install servers from MCP Registry APIs (source code).
MCP Registry Clients
- REST API - HTTP API
- go-mcp-registry - Go SDK
- mcp-registry-spec-sdk - TypeScript client for the MCP Registry
- LangChain4j MCP Registry Java client - Java API
Registry Implementations
Self-hostable servers that implement the MCP Registry API specification.
- ToolSDK MCP Registry - Extends the MCP Registry with API-based MCP execution, private deployment, and secure sandbox isolation.
- ToolHive Registry Server - Enterprise-grade MCP Registry API implementation with Kubernetes-native CRD discovery, OIDC/JWT claim-based access control, multi-source aggregation (Git, K8s, upstream registries), SIEM-compliant audit logging, and OpenTelemetry observability.
Other
- MCP Registry Cheat Sheet - MCP Registry Cheat Sheet for MCP server developers, client developers, and registry admin
- MCP Registry Remote MCP Server - Open Remote MCP server for the Registry at
https://registry-mcp.remote-mcp.com - MCP Server for MCP Registry - MCP Server to discover and search for available MCP servers in the registry
- mcp-insights - Analytics and insights for the MCP Registry
- mcp-registry-cli - CLI tool to navigate the MCP registry servers
- OtherVibes/mcp-publish-action - GitHub Action for publishing MCP servers to the official registry
- polygraph - Independent behavioral security grades (A–F) for MCP servers from an open, reproducible harness, published as an adoption-ranked index with per-server reports
Adding Your Project
To add your community project, submit a pull request adding a one-line entry above with format: [project-name](link) - brief description
Disclaimer
This is not an exhaustive list, and inclusion does not imply endorsement. Projects are maintained by third parties and may not be actively supported, secure, or compatible with the latest MCP Registry version. Please review each project independently and use at your own risk!