Security gateway for MCP servers. Wraps any MCP server with per-tool policies (Cedar + JSON), Ed25519-signed decision receipts, human approval gates, and trust tiers. Shadow mode by default — logs everything, blocks nothing.
Security gateway that wraps any MCP server with per-tool policies, approval gates, and optional Ed25519-signed decision receipts. Shadow mode logs every tool call without blocking; enforce mode applies block, rate-limit, and minimum-tier rules. Receipts are independently verifiable offline with no accounts needed.