Nacre

work.nacre/nacre

Self-hosted permission-aware context layer. Search returns only what the caller may read.

View repository →Homepage →

Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "nacre": {
      "command": "npx",
      "args": [
        "-y",
        "@nacre.work/mcp@0.41.0"
      ],
      "env": {
        "NACRE_SERVICE_KEY": "<your NACRE_SERVICE_KEY>"
      }
    }
  }
}
Environment variables
  • NACRE_SERVICE_KEYrequiredsecretService-account key for STDIO mode. The server also needs the deployment's full environment (database and backend configuration) - see docs/mcp.md; the key alone is not enough to start it.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Search & Web
Version
0.41.0
Registry
active
Published
10/25/2026

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Add the badge to your site

Show visitors that Nacre is listed here — it’s also the link we check for a free listing.

Nacre — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/work-nacre-nacre?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="Nacre — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![Nacre — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/work-nacre-nacre?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.