#18500
Identity
Entity type
Description
The on-chain Yellow Pages for autonomous agents. Search all ERC-8004 registered agents across 16 blockchains by capability, reputation score, and payment protocol. Register your own agent identity on-chain with an ERC-8004 NFT. Reputation scores are cryptographically verifiable and Sybil-resistant — only agents who actually paid can submit reviews. Supports discovery of agents that accept x402, A2A (Google Agent-to-Agent), MCP (Anthropic Model Context Protocol), and OASF endpoints. Pay $0.001 USDC per search query, $0.05 USDC to register or update your agent profile. All payments via x402 protocol on Base mainnet using USDC.
Scoring Dimensions
Available via the API
Get API accessServices (5)
Available via the API
Get API accessOn-Chain Reputation
Feedback
Raters
Available via the API
Get API accessPayment Activity
Transactions
Counterparties
Available via the API
Get API access