Is NullClear Arbiter MCP server safe?
Yes, with the usual care.
Safe to use. Minor gaps such as a missing repository or slower maintenance.
What to know before installing
- highWrite-action tools reachable without authentication
How NullClear Arbiter compares
Against every graded Finance MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 82/100
- higher than 73% of 1,761 Finance servers
- Tools that change things
- 33%
- typical: 0%. Fewer write tools means less an agent can break
- Uptime
- 100%
- of our recent checks; the typical remote Finance server answers 100%
What its tools let an agent do: 2 read · 1 change
Public scan report
scanner v0.1.10 · 2026-10-16 · same rubric, same numbers if you re-run it
1 high
- Code scan3 source files scanned25/25
- Live reliabilityremote reachable in 274ms20/20
- Tool poisoning3 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
- Maintenancelast push 0 days ago15/15
- Maintainer identitynamespace and repository owner differ4/10
Findings (1)
- highWrite-action tools reachable without authentication
auth.open-write
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON
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