Ligo MCP server

by mrfentmen·io.github.mrfentmen/ligo-mcp·v1.0.0

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Keyless MCP server for LIGO gravitational-wave catalogs: events, masses, distances.

A89/100grade A

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Safety scan

A89/100

full report

Adoption

Growing

0 stars61 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Ligo tools (3)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

get_event
One gravitational-wave event: catalog, GPS time, data link.
list_catalogs
Known GWOSC catalog names for list_events.
list_events
Gravitational-wave events of a catalog (GWTC, O3a...).

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

no findings

Code scan7 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 0 days ago15/15
Maintainer identityregistry namespace matches repository owner6/10

Overall 89/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

How Ligo compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 89/100; higher than 80% of 48,255 servers
Tools: 3; the typical server has 7
Tools that change things: 0%; typical: 0%. Fewer write tools means less an agent can break
Downloads a week: 61; more than 49% of 12,191 servers with a package

What its tools let an agent do: 3 read

Install Ligo in Claude Code, Cursor or VS Code

Runs npx -y ligo-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add ligo-mcp -- npx -y ligo-mcp

Add to Cursor

What the publisher says

From the Ligo repository's README, as published. We do not edit it. Read it on GitHub

Awesome MCPs

A monorepo of MCP servers from the mrfentmen account and local workspace.

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Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Ligo: common questions

Is Ligo MCP server safe?: Yes, by our scan: it is graded A (89/100). Read the Ligo safety report
How do I install Ligo?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Ligo need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Ligo maintained?: The last commit was 3 days ago (2026-11-01). The latest release is v1.0.0.
How does Ligo compare with other MCP servers?: safety score 89/100 (higher than 80% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.