Shopify handed browser agents the checkout, and Google put a Flipkart buy button inside Gemini

Shopify’s developer changelog for 28 September 2026 gives browser AI agents four tools inside checkout: navigate_to_storefront, get_checkout, update_checkout and complete_checkout [1]. The last one submits the order “after buyer confirmation”, and the tools hand control back to the buyer when a step needs them, such as a 3D Secure challenge. Shopify says they “don’t expose a new API or require merchant configuration” [1].

TechCrunch reported the launch the same day and quoted Shopify’s Gil Greenberg: “Today, we’re launching WebMCP support for checkout, including Shop Pay, for all eligible Shopify merchants” [2]. TechCrunch notes that the agent no longer has to work from screenshots or scrape the page. It reads the checkout as data and asks for the order to be placed. The buyer still has to confirm the order and still has to clear the bank’s own checks.

Google tests a Flipkart buy button in Gemini

Google has started testing a Buy button on some Flipkart listings inside Gemini and AI Mode in India, TechCrunch reported on 26 September 2026 [3]. Tapping it opens Flipkart’s checkout without leaving Google’s interface. The test covers a small group of users and three categories: smartphones, electronics and mobile accessories. TechCrunch says Google plans a wider rollout later in October, ahead of India’s festive shopping season. Google’s only comment was that it is “always testing new features and experiences” [3].

Business Today, on 28 September, describes the checkout as Flipkart-branded and notes that Amazon listings in the same Google products carry no buy button [4]. Both outlets point out that Google bought a minority stake in Flipkart in 2024 for about 350 million dollars [3] [4].

The Fed’s stablecoin proposals, and a correction

The 25 September edition said nothing on stablecoin rules had moved between 23 and 25 September that this desk could source twice. That was wrong. On 24 September 2026 the Federal Reserve Board asked for comment on two proposals under the GENIUS Act [5]. The first would require stablecoin issuers the Board supervises to back their coins fully with permissible reserve assets, “such as short-term Treasury bills and certain other high-quality, liquid assets”, and adds capital and risk-management rules. The second sets out how a Board-supervised bank applies to issue one. Comments close 60 days after the proposals appear in the Federal Register [5].

American Banker, on 25 September, reports that issuers would be barred from paying interest or yield “solely in connection with the holding, use, or retention of payment stablecoins”, and quotes Governor Michael Barr: “further work will undoubtedly be required if stablecoins are to be reliable payment instruments” [6].

JPMorgan on what a prompt cannot do

On 29 September 2026 Zack Anderson, J.P. Morgan’s chief data and analytics officer for payments and global banking, published a case for putting payment agents behind controls they cannot talk their way past [7]. His line: “A prompt expresses intent; it does not enforce authority.” He wants an independent policy engine, and an execution service that enforces its decision before a transaction completes. Shopify’s complete_checkout works the same way at the till: the model can prepare the order, but the order does not go through until the buyer confirms it.

Google says the Flipkart button goes wider later in October. The Fed’s 60 days start when its proposals reach the Federal Register, and Treasury’s own GENIUS Act comment window closes on 19 October 2026 [8].