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MCP live MCP 2025-11-25 streamable-http

Sigistry Plugin & Skill Catalog

com.sigistry/plugin-catalog

Search verified Claude Code plugins and skills; fetch portable SKILL.md sources. Read-only.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
836ms
last probe
Tools
9
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://sigistry.com/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
9 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
9 items in total; 3 or more earns these points.
pass Describes itself 10/10
91 characters; more than 30 earns these points.

Tools · 9

search_plugins

Search 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; …

get_plugin

Get 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_categories

List the distinct plugin categories in the Sigistry marketplace with a count of plugins in each, plus the total plugin count.

search_skills

Search 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 sha…

get_skill

Get 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…

list_scorecards

List 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 gr…

get_scorecard

Get 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 …

verify_plugin

Get 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,…

check_mcp_app

Get 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. Re…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://sigistry.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "sigistry_plugin_\u0026_skill_catalog": {
      "url": "https://sigistry.com/mcp",
      "transport": "streamable-http"
    }
  }
}