A developer product, not a platform. Pay, prove, and hand both to an agent — all from npm and the public chain. Apache-2.0, ESM, fully typed.
No install, no key, no account. It reads the public Mirror Node and returns the same verdict from any machine on earth. Delete every server we run and it still works.
# every sale on a topic, scored
npx x402-hedera-receipts audit --topic 0.0.9557142
# one settlement, in full
npx x402-hedera-receipts audit --topic 0.0.9557142 \
--tx 0.0.9556974@1784009283.264698012