Is Mettle MCP server safe?

Yes, with the usual care.

A86/100grade A

Passed every safety check we run. Maintained, authenticated, reachable, clean scan.

No critical or high findings in the latest scan.

How Mettle compares

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

Safety score: 86/100; higher than 72% of 48,243 servers
Tools that change things: 0%; typical: 0%. Fewer write tools means less an agent can break

What its tools let an agent do: 2 read

Release history: 6 versions in the registry since 2026-09-07, latest 2026-10-12, typically one every 6 days.

scanner v0.1.10 · 2026-10-15 · same rubric, same numbers if you re-run it

1 medium

Code scan28 source files scanned20/25
–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 3 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

mediumeval / new Function usedexec.eval

mettle_verifier-0.5.8/mettle/legacy_session_store.py: ….shield( self.redis.eval( _LOCK_RELEASE_S…

Overall 86/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON