Cairn

io.github.jasondostal/cairn-mcp·v0.21.2·Search

Quality Score

/100

Persistent memory for AI agents and humans. Store, search, and discover patterns.

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§01 Install

Claude Desktop (Docker)

{
  "mcpServers": {
    "cairn-mcp": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/jasondostal/cairn-mcp:0.21.2"
      ],
      "env": {
        "CAIRN_DB_HOST": "<cairn_db_host>",
        "CAIRN_DB_PASS": "<your-cairn_db_pass>",
        "CAIRN_TRANSPORT": "stdio",
        "CAIRN_LLM_BACKEND": "ollama"
      }
    }
  }
}

§02 Environment variables

CAIRN_DB_HOST

required

PostgreSQL host (pgvector)

CAIRN_DB_PASS

requiredsecret

PostgreSQL password

CAIRN_TRANSPORT

Transport mode: stdio or http

CAIRN_LLM_BACKEND

LLM backend for enrichment: bedrock or ollama

§03 MCP Quality Score · methodology