A2A Retailmedia — the agentic retail-media hub for grocery

io.github.greencore-solutionsv1.0.1更新于 Oct 5, 2026

Connecting grocery retail to 350k makers for media buys.

已验证Streamable HTTP可网页运行Business & CommerceProductivity & Workflow

概览

AI 生成的概览

让助手查询杂货零售媒体横幅卡片、检查资格，并在品牌方与零售商之间提交或接收媒体购买需求包。

功能
这是一个面向杂货零售媒体的远程 streamable-HTTP 枢纽。工具分为几组：gate（resolve_jurisdiction、resolve_actor、gate_transaction）、find（find_makers、resolve_gtin、check_eligibility、list_banners）、cards（get_banner_card、list_banner_cards）、packages（list_packages、quote_package、find_buyer）、handshake（submit_demand、receive_demand、a2a_handoff）、after（pull_measurement、renew_package、log_audit）以及 makers（enrol_maker）。读取被描述为开放；据称握手工具之前需先调用三个 gate 工具，submit_demand 需要品牌方、已获批准的预算、GTIN 和横幅列表，否则会返回缺失项说明。
适用场景
当助手需要研究所列市场中的杂货零售媒体项目、查看某横幅的签名卡片及其状态，或在品牌方代理与零售商媒体代理之间传递媒体购买需求包时，适合使用。
运行要求
通过 streamable-HTTP 连接远程端点 README 描述了通过 x402 在入口处结算的握手流程，以及使用 Microsoft 登录的零售商认领流程。
安装前请注意
握手通过 x402 在入口处结算，因此完成的交接可能涉及付款；被拒绝的交接据称不结算、不收费。submit_demand 需要人工已批准的预算。部分工具会写入或更改状态（submit_demand、receive_demand、a2a_handoff、renew_package、log_audit、enrol_maker），零售商认领流程使用 Microsoft 登录。README 声明该服务是信息源而非推荐，并提示人工智能会出错。

安装

在 SourceWeft 中

  1. 打开 控制台中的 A2A Retailmedia — the agentic retail-media hub for grocery，将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "mcpServers": {
    "a2a-retailmedia": {
      "type": "http",
      "url": "https://mcp.a2a-retailmedia.ai/mcp"
    }
  }
}

README

A2A Retailmedia — the agentic retail-media hub for grocery

Connecting grocery retail to 350k makers for media buys. Not a broker, not AdWords, not a commission — the B2B agentic hub for grocery media with x402.

Connecting grocery retail to 350k makers for media buys. Not a broker, not AdWords, not a commission — the B2B agentic hub for grocery media with x402. A2A Retailmedia is operated by GreenCore Solutions Corp.: an Agent-to-Agent (A2A) hub with a Model Context Protocol (MCP) door for grocery retail media. The retailer is the seller of media and the maker's agent is the buyer. Every grocery banner in 20 markets has a signed card with a status — unclaimed, claimed or registered — that carries only what the banner itself publishes about its media program. GreenCore Solutions Corp. owns no inventory, runs no auction, makes no creative and quotes no price. Reads are open. Call resolve_jurisdiction, then resolve_actor, then gate_transaction before the handshake tools. submit_demand needs the maker, a budget a person has approved, a Global Trade Item Number (GTIN) and a list of banners, or it returns a gap. Artificial intelligence makes mistakes. A2A Retailmedia is an agentic information source, not a recommendation. No ads, ever. No rank for sale. Trade only.

A2A Retailmedia is built and run by GreenCore Solutions Corp. (github.com/greencore-solutions). This is the public connect kit, MIT.

The door

streamable-HTTP, stateless, server name a2a-retailmedia, door version 1.0.1, 19 tools (read from the wire)

  • Endpoint: https://mcp.a2a-retailmedia.ai/mcp — any client that speaks streamable-HTTP: { "url": "https://mcp.a2a-retailmedia.ai/mcp", "transport": "streamable-http" }
  • Agent Card: https://a2a-retailmedia.ai/.well-known/agent-card.json (EdDSA, kid a2arm-2026-10; keyring /.well-known/jwks.json)
  • Docs: https://a2a-retailmedia.ai/docs · Text for agents: https://a2a-retailmedia.ai/llms.txt
  • Official MCP Registry: io.github.greencore-solutions/a2a-retailmedia (server.json in this repo)

The cards

Every grocery banner on the record has a signed card: https://a2a-retailmedia.ai/agents/{market}/{banner}.json, with a page at the same address without .json. The signed index is https://a2a-retailmedia.ai/agents/index.json.

  • unclaimed — the banner is listed; a maker's agent is referred to the banner's public media program page, or to a person where none is listed.
  • claimed — the retailer has signed in with Microsoft and verified its domain; demand is routed to its media team.
  • registered — the retailer's own media agent is bound to the card.

A card carries the media program, the operator, what it sells and the public program page — each only as the banner's own page states it. Never a price, inventory or a rate card. Retailers claim a card from its page.

The twenty markets

Europe: France, Germany, Italy, Spain, Poland, UK, Netherlands, Belgium, Switzerland. Americas: United States, Canada, Mexico, Brazil. Asia-Pacific: Japan, South Korea, India, Vietnam, Thailand, Singapore, Australia.

The tools

  • Gate — resolve_jurisdiction, resolve_actor, gate_transaction
  • Find — find_makers, resolve_gtin, check_eligibility, list_banners
  • Cards — get_banner_card, list_banner_cards
  • Packages — list_packages, quote_package, find_buyer
  • Handshake — submit_demand, receive_demand, a2a_handoff
  • After — pull_measurement, renew_package, log_audit
  • Makers — enrol_maker

Reads are open. Three calls come before the handshake tools: resolve_jurisdiction → resolve_actor → gate_transaction. submit_demand takes the packet — the maker, a budget a person has approved, one or more Global Trade Item Numbers (GTIN), a market and a list of banners — or returns a gap naming what is missing.

Two worked prompts

Maker side — "Which grocery banners in the UK list a retail media program, and what does each say it sells?"

Retailer side — "Show me the card for my banner in France and tell me how to claim it."

Examples

Stock clients, no adapter: examples/aws_strands.py · examples/azure_semantic_kernel.py · examples/google_genai.py · examples/generic_mcp_client.py.

Settle on it

The handshake settles at the door: https://a2a-retailmedia.ai/api (x402, two accept entries; a refused handoff is not settled and not charged). GreenCore Solutions Corp. quotes no price for media.

Search words

retail media · grocery · retail media network · advertiser · maker · brand · banner · media program · agent card · claim · handshake · GTIN · x402 · AI agent · agent-to-agent · 20 markets · A2A Retailmedia · agentic hub

Contact

https://gsc-em.com/#contact — a person at GreenCore Solutions Corp. reads it.

Built and run by GreenCore Solutions Corp.. Artificial intelligence makes mistakes. A2A Retailmedia is an agentic information source, not a recommendation. No ads, ever. No rank for sale. Trade only.

来源：README.md，提交 9a4da0d

工具

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版本历史

1
  1. v1.0.1最新Oct 5, 2026