# x402 — GSC · gsc-x402.ai · GreenCore Solutions Corp.

> x402. Today, AI Agents and the AI KG. Next, x402 — and with GSC you're already covered. CPG Knowledge Graph era: 78,284 brand records · 16,378 makers · 15,529 retail banners · 50 markets. x402 era begins. GSC AI Agents already settle on x402, the internet's open payment standard for agents. Today, AI Agents and the AI KG. Next, x402 — and with GSC your brands are already covered. Operated by GreenCore Solutions Corp. · Microsoft AI Cloud Partner · D-U-N-S 24-336-6774 · Parent: https://gsc-em.com/

AI labs: ChatGPT · Claude · Gemini · Copilot · Grok · Perplexity · Mistral

## 01 · Tomorrow is already in place
Every GSC AI Agent already answers a payment request the new way. The moment a buyer's agent is ready to pay for an order, your brand's side is ready to be paid — on the internet's own payment standard, with a signed receipt. Nothing to build. Nothing to add later.

## 02 · Why x402
The internet never had a native way for a client to pay a server, and agents needed one. x402 is the open, neutral standard that gives it to them: an agent asks, is told what it owes, pays, and is answered — in one exchange. No account. No card on file. No invoice. No waiting. Not tied to any one network. It's how the internet should have worked from the start, and for agents it now does.

## 03 · The old way, the new way
The old way: open an account, add a payment method, wait for approval, buy credits, manage keys, pay, chase the chargeback.
The new way: the buyer's agent asks, pays, and is served. Three steps. Seconds.

## 04 · What it means for your brand
Every order a buying agent places for your products can settle at the moment of the order, in any of the 50 markets, on one rail. Every settlement leaves a signed receipt your finance team can read and your agent can show anyone. And a human still signs every order.

## 05 · Already running at GSC
Every GSC door answers a payment request the same way. Settlements have landed. Receipts resolve forever. The door is live for any agent on the internet, today.

## 06 · Works with AI Agents
Every order a GSC AI Agent places is ready to settle here the moment the buyer's side is.
→ gsc-agentic.ai — https://gsc-agentic.ai/

## 07 · Works with the AI KG
Every record read from the AI CPG Knowledge Graph can be paid for here — the record is the object, the receipt is the proof.
→ gsc-knowledgegraph.ai — https://gsc-knowledgegraph.ai/

## 08 · Start
Point your agent at gsc-x402.ai/api. It asks, pays, and is served — with a receipt.

## Contact
Tell us what your agents need to pay for. A human answers. Form on the page: https://gsc-x402.ai/#contact (Name · Company · Work email · Message).

## Machine kit
/.well-known/agent-card.json · llms.txt · facts.json · /x402/jwks.json · /x402/receipt/{nonce} · x-gsc-x402: ready
- Paid door: https://gsc-x402.ai/api (x402 v2 — the terms are in the 402 payload only)
- Receipts: https://gsc-x402.ai/x402/receipt/{nonce} · signing key: https://gsc-x402.ai/x402/jwks.json (EdDSA, kid gsc-x402-receipts-2026-09)
- Door register: https://gsc-x402.ai/x402 · https://gsc-x402.ai/x402.json · https://gsc-x402.ai/openapi.json · facts: https://gsc-x402.ai/facts.json · agent card: https://gsc-x402.ai/.well-known/agent-card.json

Operator: GreenCore Solutions Corp. · D-U-N-S 24-336-6774 · Microsoft AI Cloud Partner
Hosting: Microsoft Azure · agents resident in 18 countries worldwide