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GraceDB

io.github.izabelamaria24/gracedb-mcp · v0.4.0

LIGO/Virgo/KAGRA gravitational-wave alerts (GraceDB), open data (GWOSC) and GCN follow-up.

Connect Runs on your machine

Terminal
claude mcp add gracedb-mcp -e GRACEDB_FORCE_NOAUTH=<GRACEDB_FORCE_NOAUTH> -e GRACEDB_SERVICE_URL=<GRACEDB_SERVICE_URL> -e GRACEDB_MCP_DATA_DIR=<GRACEDB_MCP_DATA_DIR> -- uvx gracedb-mcp==0.4.0
claude_desktop_config.json
{
  "mcpServers": {
    "gracedb-mcp": {
      "command": "uvx",
      "args": [
        "gracedb-mcp==0.4.0"
      ],
      "env": {
        "GRACEDB_FORCE_NOAUTH": "<GRACEDB_FORCE_NOAUTH>",
        "GRACEDB_SERVICE_URL": "<GRACEDB_SERVICE_URL>",
        "GRACEDB_MCP_DATA_DIR": "<GRACEDB_MCP_DATA_DIR>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "gracedb-mcp": {
      "command": "uvx",
      "args": [
        "gracedb-mcp==0.4.0"
      ],
      "env": {
        "GRACEDB_FORCE_NOAUTH": "<GRACEDB_FORCE_NOAUTH>",
        "GRACEDB_SERVICE_URL": "<GRACEDB_SERVICE_URL>",
        "GRACEDB_MCP_DATA_DIR": "<GRACEDB_MCP_DATA_DIR>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "gracedb-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "gracedb-mcp==0.4.0"
      ],
      "env": {
        "GRACEDB_FORCE_NOAUTH": "<GRACEDB_FORCE_NOAUTH>",
        "GRACEDB_SERVICE_URL": "<GRACEDB_SERVICE_URL>",
        "GRACEDB_MCP_DATA_DIR": "<GRACEDB_MCP_DATA_DIR>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
GRACEDB_FORCE_NOAUTH
Optional
Set to true for anonymous access to public superevents.
GRACEDB_SERVICE_URL
Optional
GraceDB API base URL (production or playground).
GRACEDB_MCP_DATA_DIR
Optional
Directory for downloaded files.

Details

Package[email protected] (PYPI, stdio)
Packageghcr.io/izabelamaria24/gracedb-mcp:0.4.0 (OCI, stdio)
First published2 Nov 2026
Last updated2 Nov 2026
Registry nameio.github.izabelamaria24/gracedb-mcp

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