Koskamo

Nacre MCP

A self-hosted, permission-aware context layer for AI agents that enforces access control inside the search index traversal. It provides tools for searching, ingesting documents, and managing skills, ensuring agents only see data they are cleared for.

Visit Nacre

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Nacre MCP logo, by NacreVendor evidenceLocal stdioSource reviewed; not executedOperated by Nacre
Vendor documentation

What you can do with it

  • Search documents with permission-aware filtering
  • Ingest and manage documents in specific layers
  • List available skills and tools for agents

Source and maintenance

Vendor evidenceRegistry 0.41.0
mcp-registry: work.nacre/nacre@0.41.0Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@nacre.work/mcp 0.41.0

npm
@nacre.work/mcp package definition
{
  "version": "0.41.0",
  "transport": "stdio",
  "identifier": "@nacre.work/mcp",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "NACRE_SERVICE_KEY",
      "format": "string",
      "isRequired": true,
      "description": "Service-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."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "nacre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@nacre.work/mcp@0.41.0"
      ],
      "env": {
        "NACRE_SERVICE_KEY": "<YOUR_NACRE_SERVICE_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "nacre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@nacre.work/mcp@0.41.0"
      ],
      "env": {
        "NACRE_SERVICE_KEY": "<YOUR_NACRE_SERVICE_KEY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "nacre-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@nacre.work/mcp@0.41.0"
      ],
      "env": {
        "NACRE_SERVICE_KEY": "<YOUR_NACRE_SERVICE_KEY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "nacre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@nacre.work/mcp@0.41.0"
      ],
      "env": {
        "NACRE_SERVICE_KEY": "<YOUR_NACRE_SERVICE_KEY>"
      }
    }
  }
}

Let your agent find its tools

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