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Compare servers	MCP Hangar
Purpose	MCP policy enforcement plane — deterministic policy on every Model Context Protocol call: identity, RFC 8707 audience binding, tool schema digest pinning, full audit trail. Python, self-hosted, MIT.
Authentication (maintainer declared)	Unknown
Public launch command	uvx mcp-hangar
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.