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MCP servers tagged signing
8 live MCP servers tagged "signing", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with signing.
Haldir
Framework-agnostic security for AI agent skills — signing, vetting, enforcement
Sigstore Cosign MCP
🔌 Exposes Sigstore cosign + Rekor transparency log verification.
Sshsign
SSH signing service for AI agents. Scoped authorization, co-sign approval with handwritten signatures, immutable audit trail.
Keep Protocol
🦀 Signed protobuf packets over TCP for AI agent-to-agent communication. ed25519 identity. Claw to claw.
Signet Crewai Example
Working example: Signet cryptographic signing for crewai agents
Signet MCP Example
Working example: Signet cryptographic signing for mcp agents
Signet Openai Agents Example
Working example: Signet cryptographic signing for openai agents agents
Signet Pydantic AI Example
Working example: Signet cryptographic signing for pydantic ai agents