GraceDB runs on your own machine — the client starts it, so there is no endpoint to ping. 1 105 installs a week from pypi. Last commit 3 Nov 2026.
LIGO/Virgo/KAGRA gravitational-wave alerts (GraceDB), open data (GWOSC) and GCN follow-up.
We read the source, 4 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
dest_dir = os.path.join(app.DATA_DIR, graceid, "strain")
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add gracedb-mcp -- uvx gracedb-mcp
{
"mcpServers": {
"gracedb-mcp": {
"command": "uvx",
"args": [
"gracedb-mcp"
]
}
}
}
[mcp_servers.gracedb-mcp]
command = "uvx"
args = ["gracedb-mcp"]
{
"mcpServers": {
"gracedb-mcp": {
"command": "uvx",
"args": [
"gracedb-mcp"
]
}
}
}
{
"servers": {
"gracedb-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"gracedb-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
GRACEDB_FORCE_NOAUTH (Set to true for anonymous access to public superevents), GRACEDB_SERVICE_URL (GraceDB API base URL (production or playground)), GRACEDB_MCP_DATA_DIR (Directory for downloaded files).
Live flight tracking and aviation data via FlightAware AeroAPI (flights, airports, alerts).
Alerts on official data: US and EU tenders, federal awards and grants, permits, MAP violations.
Hyperliquid data and liquidation alerts for AI agents: fills, candles, funding, wallet analytics.
AI access to Hitsteps analytics, live visitors, uptime, goals, alerts, and chats.
Live U.S. electric-grid data, forecasts, alerts, and analysis across major grid regions.
Research legislation and case law, follow legislative procedures, and act on your Reversa alerts.
US National Weather Service: forecasts, hourly forecasts, active alerts and station observations.
French real estate listings, market data and property alerts (Stream Estate API v2).
Answers built from our own checks of this server.