Engraphy MCP Server

io.github.devon-clarkk/engraphy

Repository Registry

What is the Engraphy MCP server?

Self-hosted MCP memory server: a typed knowledge graph on Postgres 16 and pgvector.

How to install Engraphy

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ENGRAPHY_DATABASE_URL
required
secret
libpq connection string for a Postgres 16 database with the pgvector extension, reached as the non-superuser `engraphy_app` role. Required: the server refuses to start without it, and refuses to start if the schema is behind (run `engraphy-admin migrate` first).
ENGRAPHY_BIND_HOST
Interface the server binds. Containers reach their own loopback only, so a published container sets 0.0.0.0 and puts the boundary at the port publication and the reverse proxy.
ENGRAPHY_BIND_PORT
Port the server binds inside the container, matching the port in the transport URL.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "engraphy": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "env": {
        "ENGRAPHY_DATABASE_URL": "<YOUR_ENGRAPHY_DATABASE_URL>",
        "ENGRAPHY_BIND_HOST": "<YOUR_ENGRAPHY_BIND_HOST>",
        "ENGRAPHY_BIND_PORT": "<YOUR_ENGRAPHY_BIND_PORT>"
      }
    }
  }
}