Guides: Agentic payments
ChatGPT Instant Checkout: how buying works, fees and cancelling
How buying through ChatGPT works after OpenAI's 2026 checkout change: costs, store data, cancelling and refunds.
AI agent purchase gone wrong: refund liability and who pays
Refund liability for an AI agent purchase depends on how you paid: cards keep chargebacks, stablecoins rarely do.
AI agent spending limits: how to set them in ChatGPT, Gemini and cards
The AI agent spending limits that exist today in ChatGPT, Google, Amazon, card networks, banks and wallets.
Accepting AI agent payments as a small business, without code
What Shopify, Stripe, Google, Coinbase and Cloudflare let small shops switch on for agent payments, and the fees.
Agentic payments, explained: how AI agents pay and who is behind it
How AI agents pay on your behalf, the protocols behind it, cards vs stablecoins, and what changes for you.
Amazon "Buy for Me": how it works, what it can spend, how to cancel
How Amazon Buy for Me orders from brand sites for you, what data the brand gets and who handles returns.
Visa Trusted Agent Protocol and Mastercard Agent Pay for cardholders
How Visa and Mastercard agent tokens work for cardholders: consent, what your bank sees and disputes.
What is x402? How agents pay per request in USDC, in plain language
The x402 protocol without code: the payment flow, facilitators, fees, spending caps and the risks for AI agents.
Agentic commerce protocols list: ACP, UCP, AP2, TAP, x402 tracker
Who runs ACP, UCP, AP2, Visa TAP, Mastercard Agent Pay and x402, what is live, and what changed this month.
AI shopping agents in 2026: which ones exist and what they can buy
Which AI shopping agents exist in 2026, what each can buy for you, where they work, and what testers have found.
Agentic commerce vs traditional e-commerce: what changes for shoppers
How agentic commerce differs from traditional online shopping step by step, and which buyer protections still apply.
ACP vs UCP: OpenAI's and Google's checkout protocols compared
ACP powers checkout in ChatGPT, UCP in Google AI Mode and Gemini: scope, payments, buyer view and what merchants choose.