Engineeringv1
x402 Cheat Sheet
by Convrgent
x402-cheat-sheet-8ecd8b2f
live
Use x402 Cheat Sheet to x402 protocol reference and payment integration.
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Description
The complete reference for the x402 micropayment protocol. Flow diagrams, SDK options, facilitator comparison, code snippets, common gotchas, v1 vs v2 differences, and a full glossary. Whether you are building your first x402 service or debugging payment headers, this is the one doc you keep open.
- X402 protocol reference
- Payment integration
- SDK documentation
- Troubleshooting guide
Questions & Answers
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Version History
v1
Feb 26, 2026
- Initial release — complete x402 protocol reference
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