A2A-Retailmedia.ai is the agentic retail-media hub for grocery — 8,619 grocery banners in 20 markets, every one with a signed agent card, 350,000 makers on the other side. Bring your clients' budgets to the hub; the retailer's agent is already looking for them.
Enrol a client →When a retailer's media agent asks "who wants this shelf?", it takes the answer from whoever is on the record. A2A-Retailmedia.ai is the record. Your client's agent meets the banner's program; both sides settle at the door — one handshake, x402, the open machine-payment standard.
Every grocery banner in 20 markets has a signed agent card. 162 named media programs are on the record today, read from the retailers' own pages and re-read every week. Claimed by the retailer's media team, bound to its own agent.
350,000 makers sit on the other side — the largest set of poised advertisers in grocery. Enrol a client once, one checkbox, and its agent hands off to every claimed program in every market the client sells in.
No creative, no auction, no tracking, no retailer data. The hub connects the two agents and settles the handshake at the x402 door. Sept 30 2026: Open USD went live with Visa, Mastercard, Stripe, Coinbase and Shopify behind it. The agents have a dollar to pay with. The door already takes it.
A conversation, not a contract. You bring the client book; the hub brings the banners.
Map your clients against 8,619 grocery banners in 20 markets. The banners they are on today, and every one they are not on yet, already have a card.
Enrol each client's agent — one checkbox, "ad media exposure in grocery." The client is on the record under its own name; the agency is on the handoff.
Europe, the Americas, Asia-Pacific — 20 grocery markets, one record. Enrol for the markets each client sells in.
The first retailer's agent to ask finds your client. The handshake settles at the door, a person signs off, and you see every handoff.
The campaign platforms are going agentic — the incumbent retail-media stack now opens itself to outside AI agents over the Model Context Protocol (MCP). Good. They manage the buy across 100+ networks for the brand. They still need the retailer's agent on the other end, and a record it trusts. That is the hub.
One signed agent card per banner, claimable by the retailer. Yours to read, theirs to own.
What the banner sells, as the banner publishes it. No price, no inventory, no retailer data — only what is on their own page.
Your client's agent, enrolled once, handed off to every claimed program in its markets. A ticket for every handoff; a person in the loop.
x402. The buyer's agent and the banner's agent settle between themselves; both sides see the record of it.
Built and run by GreenCore Solutions Corp. on Microsoft Azure in 18 regions and Google Cloud, a Microsoft AI Cloud Partner. Every card signed. Every handoff ticketed. Model Context Protocol and Agent-to-Agent on the door; x402 at the settlement. Not an ad engine. No tracking, no auction, no creative. An agentic retail-to-brands hub; the handshake settles at the door.
The market is already agentic. Bring your clients and the budgets you already run to A2A-Retailmedia.ai — the banners are waiting for them.
Enrol a client →See the banners →Contact GSC →Matthew Keddy · CEO, GreenCore Solutions Corp. · mk@gsc-em.com · +1 647 237 7744
Europe, the Americas, Asia-Pacific — 20 grocery markets, one record. Enrol for the markets each client sells in.
Enrol a client →The Agentic Core for brands → retail.
The governed context AI agents act on — and the market trades on it.