@aiwerk/mcp-server-clawhub

MCP server for the ClawHub.ai skill catalog.

Browse, search, inspect, download, and (when authenticated) publish skills from the ClawHub registry through the Model Context Protocol.

Two modes

The server adapts to whether a token is configured:

The authenticated tools are simply not registered in anonymous mode — tools/list will not advertise them.

Related MCP server: mcp-skills

Install

Two ways to run this server — pick the one that fits.

Option 1 — Hosted (zero setup)

No local runtime — if you set a token, it's AES-256-GCM encrypted server-side via HashiCorp Vault.

1. Sign up at aiwerkmcp.com.

2. Install ClawHub from the catalog. Leave CLAWHUB_TOKEN empty for anonymous mode (10 read-only tools), or paste a token to unlock all 14.

3. Point your MCP client (Claude.ai, Cursor, Hermes, …) at your hosted endpoint:

   https://bridge.aiwerk.ch/u/<your-user-id>/mcp

   with your Bearer token.

Option 2 — Self-hosted (npx)

Run directly — you manage the token:

npx -y @aiwerk/mcp-server-clawhub

Or in your MCP client config:

{
  "mcpServers": {
    "clawhub": {
      "command": "npx",
      "args": ["-y", "@aiwerk/mcp-server-clawhub"],
      "env": {
        "CLAWHUB_TOKEN": "optional - unlocks publish/delete/whoami"
      }
    }
  }
}

Tools

Read-only (anonymous + authenticated)

Discovery caveat: the live /skills endpoint applies a default server-side filter that may return an empty items[] for ungated browsing. In practice, prefer clawhub_search — it's the reliable entry point for finding skills by keyword. Use clawhub_list_skills with cursor pagination only when you have a specific filter in mind (e.g. nonSuspiciousOnly=true). The highlightedOnly flag is available on clawhub_search but not on clawhub_list_skills.

Wire shapes worth knowing

Some live API responses differ from the published OpenAPI spec. The types in src/types.ts follow the real wire shape:

• clawhub_list_skills → { items: [...], nextCursor } (not skills)

• clawhub_list_versions → { items: [...], nextCursor } (not versions)

• clawhub_get_moderation → { moderation: { verdict, ... } } (wrapped)

• clawhub_whoami → { user: { handle, ... } } (wrapped)

• clawhub_get_moderation returns 404 for skills with no moderation events — this means clean, not missing. For the always-present verdict, read .moderation from clawhub_get_skill.

Authenticated only (CLAWHUB_TOKEN required)

Environment

Rate limits

• Anonymous: 120 reads/min per IP, 30 writes/min per IP

• Authenticated: 600 reads/min per key, 120 writes/min per key

Development

npm install
npm run build
npm test

About AIWerk MCP

Part of the AIWerk MCP platform — curated, signed MCP recipes served either as npm packages for self-hosting or through our multi-tenant hosted bridge (bridge.aiwerk.ch).

Other AIWerk MCP servers:

• @aiwerk/mcp-server-cal — Cal.com scheduling

• @aiwerk/mcp-server-imap — IMAP/SMTP email, provider-agnostic

• @aiwerk/mcp-server-wise — Wise (TransferWise) Personal API, read-only

Browse the full catalog (20+ recipes including GitHub, Linear, Notion, Stripe, …) at aiwerkmcp.com.

License

MIT © AIWerk