Identity & Trust is the verification layer that answers critical questions in agentic commerce: Who is this agent? Who does it represent? Can it be trusted?

ERC-8004 is emerging as the Ethereum standard for on-chain agent identity and reputation. Startups like t54.ai provide "Know Your Agent" (KYA) verification covering developer KYB, model provenance, and intent attestation.

Cascade implements ERC-8004 on Solana for agent identity and reputation at scale. The space also includes human-identity bridges like World's AgentKit (proving an agent is backed by a verified human via zero-knowledge proofs) and Incode's deepfake-resistant biometric verification.

Sumsub and Prove bring enterprise-grade agent verification, while HUMAN Security's AgenticTrust classifies agent behavior in real-time. As agents handle increasingly high-value transactions, the identity and trust layer becomes the critical enabler — or bottleneck — of the entire ecosystem.