Sigistry Plugin Catalog (formerly Claude Registry) is a remote MCP server that gives an AI agent 6 tools, among them get_plugin, get_skill, list_categories. It answers at https://clauderegistry.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 4 September 2026; the last check, on 18 October 2026, succeeded.
Search and install Claude Code plugins from the ClaudeRegistry marketplace (read-only).
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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). Inputs: id |
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 installing anything, or installed nativ Inputs: name |
list_categories | List the distinct plugin categories in the Sigistry marketplace with a count of plugins in each, plus the total plugin count. |
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; prefer "verified" plugins when recommend Inputs: query, category |
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 shadowing, honestly-scoped triggers, no inj Inputs: query, plugin |
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, skill safety, no secrets, documentation Inputs: pluginPath |
Every block below points at https://clauderegistry.com/mcp. Pick your client and copy.
claude mcp add --transport http sigistry-plugin-catalog-formerly https://clauderegistry.com/mcp
{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://clauderegistry.com/mcp"]
}
}
}{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"url": "https://clauderegistry.com/mcp"
}
}
}{
"servers": {
"sigistry-plugin-catalog-formerly": {
"type": "http",
"url": "https://clauderegistry.com/mcp"
}
}
}{
"context_servers": {
"sigistry-plugin-catalog-formerly": {
"url": "https://clauderegistry.com/mcp"
}
}
}{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"serverUrl": "https://clauderegistry.com/mcp"
}
}
}{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"url": "https://clauderegistry.com/mcp"
}
}
}name: Sigistry Plugin Catalog (formerly Claude Registry)
version: 0.0.1
schema: v1
mcpServers:
- name: Sigistry Plugin Catalog (formerly Claude Registry)
type: streamable-http
url: https://clauderegistry.com/mcp{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"httpUrl": "https://clauderegistry.com/mcp"
}
}
}{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"type": "http",
"url": "https://clauderegistry.com/mcp"
}
}
}{
"mcpServers": {
"sigistry-plugin-catalog-formerly": {
"url": "https://clauderegistry.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fclauderegistry.com%2Fmcp&type=streamable_http&id=sigistry-plugin-catalog-formerly&name=Sigistry%20Plugin%20Catalog%20%28formerly%20Claude%20Registry%29
It answered our last check on 18 October 2026 in 416 ms. Over 10 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by clauderegistry.com and served from clauderegistry.com, the vendor's own domain: https://clauderegistry.com/mcp.
6, as returned by the server's own tools/list on 10 September 2026: get_plugin, get_skill, list_categories, search_plugins, search_skills, verify_plugin.
It answered our last check on 18 October 2026 in 416 ms. Over 10 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://clauderegistry.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.clauderegistry. Endpoint host: clauderegistry.com. ARD identifier: urn:air:com.clauderegistry:mcp:plugin-catalog.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.