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Independent MeasurementUSDCLedger read
vet402Measured chains2026-10-26

x402 payments on Avalanche C-Chain (USDC)

vet402 measures x402 payments on Avalanche C-Chain.

The pinned settlement asset on Avalanche C-Chain is USDC.

1.This read

Delivered counts settled purchases whose paid request answered HTTP 2xx other than 202 Accepted, with a non-empty body. The row is l1.byChain for Avalanche C-Chain. CAIP-2 eip155:43114.

Paid attempts
33
Settled
14
Delivered
13

1 settled purchases on this chain are held as inconclusive. The methodology says why a 4xx is held.

2.How a purchase is tied to its settlement

CAIP-2 eip155:43114. The purchase is tied to its settlement by the EIP-3009 authorization nonce. The re-read matches that nonce on the transfer.

3.Where to read on

/api/v1/observatory/state (CC BY 4.0) is the source. Definitions are in the methodology. How an agent pays, including USDC, is How AI agents pay with stablecoins. How to check a seller before paying is on its own page. A longer note on the protocol is What is x402.