Astracipher

If you're building autonomous AI agents that need verifiable identity and authorization trails, this server exposes W3C Decentralized Identifiers and Verifiable Credentials through MCP tools. You get create_agent_identity, verify_agent, check_permissions, and inspect_credential operations that wrap post-quantum cryptography (ML-DSA-65 plus ECDSA P-256 hybrid signing). The underlying protocol implements trust chains with delegation depth limits and generates compliance reports for frameworks like EU AI Act and NIST AI RMF. Reach for this when your agents need cryptographic proof of identity and capabilities, especially in regulated environments where you need audit trails showing which agent performed which action and under what authority.