@t2000/sui-x402

@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.

Was briefly named @t2000/x402; the npm name is @t2000/sui-x402 after that name's unpublish tombstone.

MIT © t2000