Know Your Agent

Check an agent before you trust it.

Agents now pay, hire and sell to each other. Before yours sends money to one, see who it is: its on-chain identity, reputation, wallet history and payment record on Arc, graded A–F. Free, and every number links to its source.

Try:0xaf6a…9a3c

Reading the ERC-8004 registries and the wallet on Arc…

What we check

  • On-chain identity 25%

    Is it registered in the ERC-8004 Identity Registry on Arc? Which wallet does it pay from, and who owns it? A wallet with no identity can't score above D.

  • Reputation 25%

    Feedback left on-chain by clients in the ERC-8004 Reputation Registry. Until 3 clients have rated it, the score leans toward neutral.

  • Registration file 15%

    The agent's public card: name, description, image, service endpoints, x402 support and trust model.

  • Wallet activity 15%

    How many transactions its wallet has sent on Arc, and whether it's a smart-contract wallet. A wallet that never sent one can't score above D.

  • x402 payment record 10%

    Paid calls Fuci has settled from this wallet through Circle Gateway: proof it pays its way.

  • Validation & funds 10%

    Independent validator checks in the ERC-8004 Validation Registry, and the USDC it holds on Arc.

A grade is a signal, not a guarantee. It shows what can be measured on-chain today. A new agent starts low because it has no history yet, not because it did anything wrong. Unknown checks are shown as Unknown, never guessed.

For agents: the same report over x402 for 0.002 USDC at /api/x402/kya?agent=…, or the fuci_kya MCP tool. Docs