According to a report by 8004scan, approximately 386,000 onchain agents have been registered on-chain.

The 8004scan report shows that approximately 386,000 onchain agents have been registered on-chain, covering 29 public blockchains, with more than 319,000 users and over 460,000 feedback records. However, only about 2.24% of agents pass A2A/MCP health checks and provide usable services. BNB Smart Chain leads in registrations, Base stands out in feedback activity, Ethereum acts as a registration hub, Celo and X Layer perform well in service readiness, and Solana offers a parallel non-EVM registration track. 8004scan states that in the next phase, the core metrics will shift from registration numbers to healthy, discoverable, payable, and reliably callable infrastructure agents.