Is tc39-mcp server safe?
Yes, with the usual care.
Passed every safety check we run. Maintained, authenticated, reachable, clean scan.
What to know before installing
- highWrite-action tools reachable without authentication
How tc39-mcp compares
Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 85/100
- higher than 75% of 3,470 Web search servers
- Tools that change things
- 6%
- typical: 0%. Fewer write tools means less an agent can break
- Uptime
- 100%
- of our recent checks; the typical remote Web search server answers 100%
What its tools let an agent do: 16 read · 1 change
Release history: 2 versions in the registry since 2026-09-08, latest 2026-10-07, typically one every 29 days.
Public scan report
scanner v0.1.10 · 2026-10-15 · same rubric, same numbers if you re-run it
1 high
- Code scan96 source files scanned25/25
- Live reliabilityremote reachable in 620ms20/20
- Tool poisoning17 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
- Maintenancelast push 1 days ago15/15
- Maintainer identityregistry namespace matches repository owner7/10
Findings (1)
- highWrite-action tools reachable without authentication
auth.open-write
Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON
Other servers that do what tc39-mcp does
- jDocmunch MCPSection-level doc search for .md, .rst, .adoc, .ipynb, .html, .yaml, .json, and OpenAPI specs.not reviewedEstablishedA
all2mdRead, convert, search, diff and outline PDF, Word, PowerPoint, HTML and 40+ formats as Markdown.not reviewedGrowingA
