Secure Digital Agent Protocol — HTTPS for AI agent communication. Cryptographic identity, mutual authentication, encrypted payloads, trust delegation, and audit trails for multi-provider agent ecosystems. Works with A2A, MCP, and any agent-to-agent protocol.
SDAP is an early-stage Python project in the AI payments / x402 ecosystem, focused on a2a-protocol, aes-256-gcm, agent-to-agent, ai-agents. It currently has 2 GitHub stars and 0 forks, and sits alongside related tools like peac, blocklace-a2a, agentanycast.