# A2A Retailmedia — the agentic retail-media hub for grocery

> Connecting grocery retail to makers for media buys. Every grocery banner in 20 markets has a signed card with a status: unclaimed, claimed or registered. Built and run by GreenCore Solutions Corp. Not an ad engine. No tracking, no auction, no creative. An agentic retail-to-brands hub; the handshake settles at the door.

## Door
- Model Context Protocol (MCP) door: https://mcp.a2a-retailmedia.ai/mcp
- Agent card: https://a2a-retailmedia.ai/.well-known/agent-card.json
- Door descriptor: https://a2a-retailmedia.ai/.well-known/mcp.json

## Cards
- Card index (signed): https://a2a-retailmedia.ai/agents/index.json
- One card: https://a2a-retailmedia.ai/agents/{market}/{banner}.json
- One page per card: https://a2a-retailmedia.ai/agents/{market}/{banner}
- Directory by market: https://a2a-retailmedia.ai/cards

## Pages as text
- https://a2a-retailmedia.ai/index.md
- https://a2a-retailmedia.ai/docs.md

## Makers
- Enrol for media exposure in grocery: https://a2a-retailmedia.ai/enrol (or the enrol_maker tool)

## Registers
- Claims: https://a2a-retailmedia.ai/claims/register.json
- Handoffs: https://a2a-retailmedia.ai/handoffs/register.json
- Maker enrolments: https://a2a-retailmedia.ai/enrolments/register.json

## Notice
Artificial intelligence makes mistakes. A2A Retailmedia is an agentic information source, not a recommendation. No ads, ever. No rank for sale. Trade only.