# nacre

> nacre — nacre-work-nacre. Use this tool when you need to securely manage and retrieve authorized documents for AI agents, leveraging a self-hosted knowledge index with document-level permissions and OAuth 2.1 authentication. It solves access control and data privacy issues by only exposing authorized documents to AI agents via MCP. Ideal for use cases requiring custom embedding models and on-network deployment.

Canonical page: https://skillsregistry.net/skills/nacre-work-nacre  
JSON: https://api.skillsregistry.net/v1/skills/nacre-work-nacre

## Description

Provides a self-hosted knowledge index with document-level permissions, enabling AI agents to retrieve exactly the documents they are authorized to see via MCP. Supports OAuth 2.1, custom embedding models, and runs inside your network.

## Trust

- **Trust score (0–1):** 0.54
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/nfmipxbvi5)
- **Repository:** <https://github.com/nacre-work/nacre>

## 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": "nacre-work-nacre"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nacre-work-nacre` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nacre-work-nacre/pull`

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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