Simbad MCP server

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

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Keyless MCP server for SIMBAD: astronomical objects via TAPADQL queries.

A89/100grade A

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Safety scan

A89/100

full report

Adoption

Growing

0 stars60 downloads/wk

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

Simbad tools (2)

write = sends, deletes, buys or posts

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

cone_search
Objects within a sky region by RA/Dec and radius.
lookup_object
Look up an astronomical object by name: id, type, coordinates.

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 Simbad 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: 2; the typical server has 7
Tools that change things: 0%; typical: 0%. Fewer write tools means less an agent can break
Downloads a week: 60; more than 49% of 12,191 servers with a package

What its tools let an agent do: 2 read

Install Simbad in Claude Code, Cursor or VS Code

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

claude mcp add simbad-mcp -- npx -y simbad-mcp

Add to Cursor

What the publisher says

From the Simbad 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.

Simbad: common questions

Is Simbad MCP server safe?: Yes, by our scan: it is graded A (89/100). Read the Simbad safety report
How do I install Simbad?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Simbad need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Simbad maintained?: The last commit was 3 days ago (2026-11-01). The latest release is v1.0.0.
How does Simbad compare with other MCP servers?: safety score 89/100 (higher than 80% of 48,255 servers); tools 2 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.