MCP Armor

Drop-in Rust sidecar for MCP servers

v0.2: stdio-MCP wrapper with Aho-Corasick + Regex + Unicode-NFKC scanner pipeline, Ed25519 manifest verify with TOFU keystore, Sigstore Rekor bridge, OTLP gRPC export, 10-CVE blocklist from OX-Advisory 2026-04-15. 9 control-plane MCP tools, 133 tests, MIT.