Flight Recorder

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The black box for x402 payments. Inspect every USDC transfer an address has received (or sent) on Base — amounts, counterparties and links to Basescan. Read live from the chain, with no database in between.

How to use

  1. Paste a wallet address and choose received or sent.
  2. Set a block window and result limit to keep the query fast.
  3. Review every USDC transfer: amount, counterparty and timestamp.
  4. Open any transfer on Basescan for full detail.

Where it applies

  • Reconstructing the payment history of an x402 merchant.
  • Auditing incoming USDC before trusting a counterparty.
  • Investigating a specific transfer on Base.
  • Agents reading the ledger via the paid <code>POST /api/flight-recorder</code> endpoint ($0.001 USDC).