SML Dual Market
x402 Protocol Guide
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x402 Protocol Guide (PDF)29 pages
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x402 Protocol Guide

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Delivery verified2026-11-13 — test order read back the delivered file
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About this product

A 29-page guide to the x402 protocol: the HTTP 402 payment flow, the four states of a paid request, seller and buyer architecture, facilitators and troubleshooting.

What is inside (29-page PDF)

  • What x402 is and the basic transaction flow
  • The four states of a paid request
  • Seller architecture and buyer architecture
  • Facilitators and discovery
  • Checklists and worksheets
  • Failure modes and troubleshooting
  • Final checklist, resources, sources and standards

$29, one-time payment. 7-day money-back guarantee: email us within 7 days of purchase for a refund.

Educational and technical material, not financial or security advice. Test on test networks and cap spending before funding any wallet. No income or performance outcome is guaranteed.