@t2000/sui-x402

The x402 payment dialect for Sui — scheme `exact`, sign-then-settle gasless USDC. Requirements builders, header parse/verify/settle, and the digest replay store shared by @t2000/serve and @t2000/sdk.

Source

npm

Version: 11.1.4

Version published: 4 days ago

Maintainers: 1

Created: 4 weeks ago

Source

@t2000/sui-x402

x402 payment dialect for Sui — scheme exact, sign-then-settle gasless USDC. Used by @t2000/serve (seller) and @t2000/sdk (buyer):

Requirements — createX402Requirements builds the accepts[] entry a 402 advertises (challenge-bound via extra.suimpp — wire field name; see scheme docs).
Payment — buildX402SignedPayment builds + signs the gasless transfer without submitting; the seller settles.
Verify + settle — verifyX402Payment / settleX402Payment. No-charge-on-failure is structural.
Replay store — DigestStore / InMemoryDigestStore.
Escrow routing — isX402EscrowRequirements / isX402EscrowHeader so instant and escrow flows never cross.

import { createX402Requirements, USDC } from '@t2000/sui-x402';

Wire is stable: scheme exact, X-PAYMENT / X-PAYMENT-RESPONSE, and the extra.suimpp extension bag. Renaming those fields is a protocol bump, not a package rename.