Agent payments (x402)
How an agent pays or gets paid over HTTP 402: Bazaar listing, facilitators, wallets and what goes wrong silently.
Agent payments (x402)"paymentPayload is invalid": one dash broke a payment
Our first real x402 purchase on mainnet failed with a schema error caused by one em dash and a bare atob call. The cause, the fix, and how we proved it free.
4 min readnote
Agent payments (x402)What an agent should check before signing an x402 payment
The values an agent or its developer should compare before signing an x402 payment, which ones our own buyer script checks, and which it leaves out.
6 min readguide
Agent payments (x402)Not in the x402 Bazaar? Nine silent causes, in order
Nine causes of a missing Bazaar listing that leave no error anywhere, cheapest to check first, each with a command that proves it and a control that can fail.
6 min readguide