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Persistent memory for AI agents and humans. Store, search, and discover patterns.
Cairn is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 67/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Cairn to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
docker run -i --rm ghcr.io/jasondostal/cairn-mcp:0.21.2Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-02-11T03:13:20.598782Z",
"publishedAt": "2026-02-11T03:13:20.598782Z",
"statusChangedAt": "2026-02-11T03:13:20.598782Z"
}
},
"server": {
"name": "io.github.jasondostal/cairn-mcp",
"title": "Cairn",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "0.21.2",
"packages": [
{
"transport": {
"type": "stdio"
},
"identifier": "ghcr.io/jasondostal/cairn-mcp:0.21.2",
"registryType": "oci",
"environmentVariables": [
{
"name": "CAIRN_DB_HOST",
"isRequired": true,
"description": "PostgreSQL host (pgvector)"
},
{
"name": "CAIRN_DB_PASS",
"isSecret": true,
"isRequired": true,
"description": "PostgreSQL password"
},
{
"name": "CAIRN_TRANSPORT",
"default": "stdio",
"description": "Transport mode: stdio or http"
},
{
"name": "CAIRN_LLM_BACKEND",
"default": "ollama",
"description": "LLM backend for enrichment: bedrock or ollama"
}
]
}
],
"repository": {
"url": "https://github.com/jasondostal/cairn-mcp",
"source": "github"
},
"description": "Persistent memory for AI agents and humans. Store, search, and discover patterns."
}
}