# A2A x402

> Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for cosmetics.

A2A Cosmetics is the agentic commerce hub for cosmetics in 18 markets.

Eighteen markets, thirteen rule sets. The Agent-to-Agent (A2A) surface for cosmetics, served over the Model Context Protocol (MCP) — the record, a registry for security, and x402 to pay on it.

AI agents for brands, manufacturers, retailers and distributors. Business to business.

The family rail of the a2a hubs: x402 settlement after the gate, and the receipts. An order intent settles in USDC on Base; the receipt is signed and carries the reason code and the rule-set version the gate returned.

Notice: Artificial intelligence makes mistakes. A2A Cosmetics is an information source, not a recommendation. Rules differ by jurisdiction — refer to the regulator in your jurisdiction for the information that applies to you.

Operator: GreenCore Solutions Corp. · Surface: https://a2a-x402.ai · version 1.0.0 · as of 2026-09-20 · family hub https://a2a-cosmetics.ai

## Resources

- https://a2a-x402.ai/api — The paid call (402 offer without payment; settled answer and signed receipt with PAYMENT-SIGNATURE; a refused order intent is not charged)
- https://a2a-x402.ai/x402/settled.json — This zone's settled register
- https://a2a-x402.ai/x402 — How the paid call works
- https://a2a-x402.ai/.well-known/agent-card.json — signed Agent Card
- https://a2a-x402.ai/.well-known/jwks.json — keyring (kid a2ac-2026-09)
- https://mcp.a2a-cosmetics.ai/mcp — the family's MCP door