Cairn MCP Server

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

Local serverstdio

What is the Cairn MCP Server?

Cairn is an MCP integration. Persistent memory for AI agents and humans. Store, search, and discover patterns.

Packages and local setup

The published oci package is ghcr.io/jasondostal/cairn-mcp:0.21.2. Its declared MCP transport is stdio.

The package declares CAIRN_DB_HOST (required): PostgreSQL host (pgvector); CAIRN_DB_PASS (required): PostgreSQL password; CAIRN_TRANSPORT: Transport mode: stdio or http; CAIRN_LLM_BACKEND: LLM backend for enrichment: bedrock or ollama.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository. This profile uses version 0.21.2 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related knowledge & memory MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
CAIRN_DB_HOSTPostgreSQL host (pgvector)Yes
CAIRN_DB_PASSPostgreSQL passwordYes
CAIRN_TRANSPORTTransport mode: stdio or httpOptional
CAIRN_LLM_BACKENDLLM backend for enrichment: bedrock or ollamaOptional