Knowledge Graph RDBMS MCP Server

io.github.cunicopia-dev/knowledge-graph-rdbms

Repository Registry

What is the Knowledge Graph RDBMS MCP server?

A label property graph on SQLite/Postgres with multi-ontology routing and a gated MCP server.

How to install Knowledge Graph RDBMS

Copy-paste configuration for popular MCP clients.

transport: stdio

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

Environment / auth

KGRDBMS_HOME
Storage root for ontology databases and the event log. Defaults to ~/.kgrdbms.
KGRDBMS_DEFAULT_ONTOLOGY
Name of the default ontology used when a tool call omits the `ontology` argument. Defaults to "default".

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

{
  "mcpServers": {
    "knowledge-graph-rdbms": {
      "command": "uvx",
      "args": [
        "knowledge-graph-rdbms",
        "--from",
        "knowledge-graph-rdbms[mcp]",
        "kgrdbms-mcp"
      ],
      "env": {
        "KGRDBMS_HOME": "<YOUR_KGRDBMS_HOME>",
        "KGRDBMS_DEFAULT_ONTOLOGY": "<YOUR_KGRDBMS_DEFAULT_ONTOLOGY>"
      }
    }
  }
}