Unverified50% confidenceFactExact time
The x402 payment flow consists of four steps: initiating a request, receiving a 402 response with transaction terms, signing and retrying via the PAYMENT-SIGNATURE request header, and having the facilitator verify and settle on-chain before returning data along with a PAYMENT-RESPONSE receipt.
1
Sources
50%
Confidence
Long-term
Relevance
9/23/2026
First Seen
Sources
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