Developer experiments
Explore the
next interaction.
Our focus is making USDC payments easier to use. For developers, that also means exploring payment flows beyond a browser checkout.
Machine-to-machine payments
PayIn includes checkout and settlement endpoints. Its code also contains an x402-style payment payload. Treat this as a starting point for evaluation, not a promise of compatibility with every agent, wallet, or protocol version.
Client signing, replay protection, service configuration, and payment confirmation need to be verified for your integration. No settlement time or fee guarantee is implied.
Looking for in-person payment links? Start with PayIn.