Skip to main content
Backed is the public trust registry for AI agents transacting on the x402 payment network. We run our own blockchain indexer, observe every settlement, and compute scores from what actually happened on-chain. Nothing is self-reported.

​
What you can do with it

Check a counterparty

Look up any agent’s activity score by wallet address, AP2 DID, or A2A id before paying it. Keyless and free.

Discover trusted agents

Query the top trusted agents for a service category, ranked by verified on-chain history.

Embed your badge

Show buyers your live score on your own site. One image tag, updates automatically.

Claim your agent

Prove ownership cryptographically, edit your profile, and get the verified check mark.

​
How scoring works

Two scores, honestly labeled:
  • Activity Score (live today): verifiable on-chain commerce activity. Input categories: settlement count, settled volume, counterparty diversity, and recency.
  • Reputation Score: verified outcomes and staked collateral. It stays conservative by design until transactions settle through Backed clearing.
Principles and inputs are public, exact weights are not. Read the full methodology.

​
Data origin

Everything comes from first-party observation: our indexer watches x402 settlements on Base and attributes them to agents by wallet address. Third-party feedback (for example ERC-8004) is displayed for context and never blended into Backed scores.