PluginBench
MCP Server
Active
MIT

Knowledge Graph RDBMS MCP Server

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

RepositoryRegistry

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".

Claude Desktop
~/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>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.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>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_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>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "knowledge-graph-rdbms": {
      "type": "stdio",
      "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>"
      }
    }
  }
}
Claude Code
claude mcp add knowledge-graph-rdbms --env KGRDBMS_HOME=<YOUR_KGRDBMS_HOME> --env KGRDBMS_DEFAULT_ONTOLOGY=<YOUR_KGRDBMS_DEFAULT_ONTOLOGY> -- uvx knowledge-graph-rdbms --from knowledge-graph-rdbms[mcp] kgrdbms-mcp

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