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Compare servers	MCP Observatory
Purpose	Free, MIT-licensed MCP security testing from ClearFrame. Scan, audit, compare, and review locally; continue in the ClearFrame CLI or Mac app.
Authentication (maintainer declared)	Unknown
Public launch command	npx -y @kryptosai/mcp-observatory demo
Configuration source	Public install instructions
Observed tools	Unknown
Last complete tool check	Unknown
License	MIT
	Open setup

A complete tool check lists tools; it does not exercise them or certify security.