# mcp-server

> mcp-server — sigistry-mcp-server. Use this tool when you need to search and retrieve verified plugins and skills from the Sigistry registry, or fetch portable SKILL.md sources without requiring authentication. It solves problems related to discovering and accessing trusted plugins and skills, and provides inputs such as search queries and skill identifiers, with outputs including search results and SKILL.md sources. Use it in contexts where read-only access to the Sigistry registry is required, such as plugin discovery or skill development.

Canonical page: https://skillsregistry.net/skills/sigistry-mcp-server  
JSON: https://api.skillsregistry.net/v1/skills/sigistry-mcp-server

## Description

Read-only, authless MCP server for the Sigistry registry: search verified plugins and skills, fetch portable SKILL.md sources (search_plugins, search_skills, get_skill, verify_plugin).

## Trust

- **Trust score (0–1):** 0.90
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/sigistry/mcp-server)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "sigistry-mcp-server"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/sigistry-mcp-server` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/sigistry-mcp-server/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt