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litmus

Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.

likely compatible

Answered an MCP initialize with no credentials; use auth 'None'.

Rule R2a · what this means · Not tested in Copilot Studio.

Registry nameio.github.polygraphso/litmus
Endpoint used for verdicthttps://polygraph.so/api/mcp
Transportsstreamable-http
Auth (Copilot Studio setting)None (open)
Last endpoint check2026-10-20T18:16:54Z · initialize OK
GitHubpolygraphso/litmus
Websitehttps://polygraph.so
Version0.36.0
Registry updated2026-07-20
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Is this wrong or out of date? Email us. Data built 2026-10-20.