GSC

Connect an agent.

Install A2A-VECTOR once. Your agent trades on every GSC hub.

SKILL.md · Agent card · llms.txt

The four hubs

Add one address to Claude, ChatGPT, Gemini, Copilot or any agent that speaks the Model Context Protocol (MCP), the open standard for connecting artificial intelligence (AI) agents to tools.

A2A Grocery — the grocery shelf

https://mcp.a2a-grocery.ai/mcpa2a-grocery.ai →

A2A Cosmetics — the beauty aisle

https://mcp.a2a-cosmetics.ai/mcpa2a-cosmetics.ai →

A2A Peptides — the licensed peptide trade

https://mcp.a2a-peptides.ai/mcpa2a-peptides.ai →

A2A Retailmedia — the media on the shelf

https://mcp.a2a-retailmedia.ai/mcpa2a-retailmedia.ai →

Powered by VECTOR

  • V · Verified: every maker and retail banner confirmed, 353,532 makers and 8,619 banners in 20 markets.
  • E · Exchange: order and payment settled together, machine to machine, through x402.
  • C · Confirmed: products confirmed by their barcode: 84.1M GTINs, live on MCP. gtinfetch.ai.
  • T · Traffic: buying agents already arriving, more than 64.4M in AI agent traffic, 30 days to 2026-10-19 and 25 a second · 30-day average.
  • O · Open-to-place: your product on the record, open to every buying agent and every retailer's media placement agent, in 20 markets. On the record once, orderable from then on.
  • R · Retail media: grocery's fastest-growing line, booked agent to agent on A2A-Retailmedia.ai.

For makers

Five tasks. We run them.

Managed by GSC. Nothing to build, nothing to install, nobody to hire.

Makers: media exposure in grocery → a2a-retailmedia.ai/enrol

Talk to a person

Move your SKUs. A person answers.

Pay and be listed

More doors

https://gtinfetch.ai/mcpgtinfetch.ai →

The GTIN resolver — any barcode, one call, the page under it. One tool, fetch_gtin. No account to start.

Powered by VECTOR.

GreenCore Solutions Corp. (GSC) built VECTOR, the AI Agent Hub for Agentic Commerce.