Sigistry Plugin Catalog (formerly Claude Registry)

com.clauderegistry/plugin-catalog · v1.2.0 · agents-and-memory

Sigistry Plugin Catalog (formerly Claude Registry) is healthy: it completed an MCP handshake in 392 ms and exposes 9 tools.

Renamed: prefer com.sigistry/plugin-catalog. This legacy endpoint keeps working.

Endpoint: https://clauderegistry.com/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count9
Latency392 ms
Last checked (UTC)2026-10-15T19:50:08.328Z

Health history

Checked (UTC)StatusLatencyError
2026-10-15T19:50:08.328ZHealthy392
2026-10-14T18:35:43.011ZHealthy1919

Tools (9)

search_pluginsSearch the Sigistry marketplace of Claude Code plugins by keyword and/or category. Returns matches with their install command and verification status (the registry runs an eight-check security audit; prefer "verified" plugins when recommending an install).
get_pluginGet the full details of a single Sigistry plugin by its id, including install commands, component counts, and its security-audit result (per-check pass/fail from the Verified by Sigistry methodology).
list_categoriesList the distinct plugin categories in the Sigistry marketplace with a count of plugins in each, plus the total plugin count.
search_skillsSearch the Sigistry catalog of verified skills (SKILL.md instruction sets for AI agents) by keyword, optionally filtered to one parent plugin. Every skill passed the skill-safety check: no command shadowing, honestly-scoped triggers, no injection or concealment language, no unsafe scripts. Use get_s
get_skillGet one Sigistry skill by name, including the full raw SKILL.md source. The source is portable: it can be applied directly in any SKILL.md-aware agent (Claude Code, Claude Desktop, and others) without installing anything, or installed natively in Claude Code via the parent plugin, which keeps it ver
list_scorecardsList the public MCP servers Sigistry has independently graded against its scorecard rubric (transport, stateless core, lifecycle, authorization, tool design, security hygiene), each with an overall grade A-F and the exact commit graded. Useful before connecting an agent to a third-party MCP server:
get_scorecardGet the full scorecard for one graded MCP server by its id: the overall grade, per-axis pass/partial/fail with cited evidence, hardening notes, the rubric version, and the exact commit graded. Grades describe the pinned commit only; a re-grade at a newer commit can be requested via an issue on the m
verify_pluginGet the recipe to run the Sigistry verification methodology (the eight static checks that gate the Verified badge: manifest integrity, hook safety, agent tool scopes, command hygiene, skill structure, skill safety, no secrets, documentation) against a plugin BEFORE publishing it. The verification ru
check_mcp_appGet the Sigistry MCP App safety criteria to audit an MCP App (MCP Apps / SEP-1865: a tool that returns an interactive ui:// HTML resource the host renders in a sandboxed iframe) BEFORE shipping it. Returns two groups of checks: spec conformance (ui:// scheme, the text/html;profile=mcp-app mimeType,