PATech Labs News

Intelligence Brief

What's happening with AI in business: facts, primary sources, and named authors. In English, Russian, and Spanish.

AI Agent Payments Guide 2026: x402, AP2, MPP, Visa and Mastercard
FinTech

AI Agent Payments Guide 2026: x402, AP2, MPP, Visa and Mastercard

A plain-language map of AI agent payment rails as of October 2026: x402 and its foundation, Google AP2, ACP, MPP, Visa and Mastercard, what changed since July, and why adoption numbers disagree.

Oct 9, 20266 min read49
How x402 Works: One AI Agent Payment Over HTTP 402, Step by Step
FinTech

How x402 Works: One AI Agent Payment Over HTTP 402, Step by Step

A step-by-step walk through one x402 v2 payment: the 402 response, the PAYMENT-REQUIRED and PAYMENT-SIGNATURE headers, what the facilitator can and cannot do, fees, assets and refunds. Plus where the protocol fits and where it does not.

Oct 9, 20265 min read40
Who Is Liable When an AI Agent Pays? Fraud, Refunds and the Rule Gap
FinTech

Who Is Liable When an AI Agent Pays? Fraud, Refunds and the Rule Gap

When an AI agent pays the wrong party or is tricked, Regulation E and Z set loss rules for unauthorized payments but never mention AI agents. Here is what they say, what the Fed's Waller asked, and what owners can check now.

Oct 9, 20264 min read27
Can a small business accept AI agent payments? Stripe, Shopify, x402
FinTech

Can a small business accept AI agent payments? Stripe, Shopify, x402

What a clinic, law office or medspa can actually do today to accept payments from AI agents through Stripe, Shopify, Square or x402, and why capturing the phone request still comes first.

Oct 9, 20264 min read27