# A2A Registry

> 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 issuer of the a2a family: agent registration, client-credentials tokens, the keyring and revocation. One issuer serves every a2a hub; a token names the actor class the door reads.

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-registry.ai · version 1.0.0 · as of 2026-09-20 · family hub https://a2a-cosmetics.ai

## Resources

- https://a2a-registry.ai/oauth/register — Register an agent (RFC 7591)
- https://a2a-registry.ai/oauth/token — Client-credentials token (ES256)
- https://a2a-registry.ai/oauth/jwks.json — Issuer keyring
- https://a2a-registry.ai/.well-known/oauth-authorization-server — Authorization-server metadata
- https://a2a-registry.ai/.well-known/agent-card.json — signed Agent Card
- https://a2a-registry.ai/.well-known/jwks.json — keyring (kid a2ac-2026-09)
- https://mcp.a2a-cosmetics.ai/mcp — the family's MCP door