Unverified50% confidenceFactExact time
The core idea of the X402 protocol is to embed payment into the HTTP request process: the server returns a 402 status code with payment details, the agent signs an authorization from a crypto wallet, completes the payment, and retries the request.
1
Sources
50%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
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