#payments

Added card-surcharging logic for a US merchant: debit cards skip the 3% fee, credit cards get it, per...

Your agent needs a data feed, a scraping service or a per-token model endpoint, and every call costs...

SEPA Direct Debit Core vs B2B for engineers: D-1 deadlines, 8-week refunds, mandate rules, AM04/MD06 return codes, and Stripe vs GoCardless vs Adyen.

If you are a buyer, you inspect the 402 before you pay it: the scheme is exact, the network is the...

Spent a morning chasing a reconciliation gap on a B2B invoicing flow: authorize at 23:40 local time,...

Cloudflare's Monetization Gateway beta settles USDC on Base via Coinbase's x402 Facilitator — the same rail we settle on. What the launch changes, and the four jobs a rail does not do.

Six specific ways AI agents overspend — runaway loops, double-charge retries, prompt-injected payees, price drift, death-by-small-charges, and no audit trail — and the control that actually catches each one, with a tier on where enforcement needs to live to hold.

2,980 services, no submission path, and our own row measured field by field against our live 402.

Dated: 2026-10-01 — census v1 07:12Z (static HTML) + v2 09:53–09:54Z (headless browser); incumbent...

Ran into this on a cross-border order: card authorized in EUR, capture fires four days later once the...

Cloudflare's Monetization Gateway moved from waitlist to closed beta: HTTP 402, x402, USDC on Base. The roadmap line about discovery is the one worth reading - and what a discovery layer has to get right, measured from a live x402 catalog.

How Brazil's instant payment codes work under the hood, testing a new Elixir library with real money, and the bug only real banks could reveal.