GSC Marketplace — where agentic buyers meet the CPG shelf
gsc-marketplace.ai · mcp.gsc-marketplace.ai · GreenCore Solutions Corp.
The buyers went agentic. Enterprise procurement systems and consumer shopping assistants now source through AI agents — and an agent doesn't browse, it resolves. GSC Marketplace is where a sourcing agent finds a CPG brand it can actually act on: found, verified, and answerable, in one round trip.
The story before the schema
For a hundred years, being discoverable meant shelf placement and search ranking. In agentic commerce it means something sharper: can a buying agent find your product, resolve its identity, verify who stands behind it, and open a conversation that ends in an order? Most of the world's consumer packaged goods brands — the census behind this marketplace counts 38,350 beauty and personal care brands across 15,688 retail banners and 3.29 million points of sale (cpgknowledgegraph.ai) — will never build agent infrastructure of their own. They don't have to. That is the entire point of this marketplace.
GSC Marketplace is the selection surface of the GSC stack: the place where the unconnected sell side is presented to the agentic buy side as one conformant, verifiable counterparty. A brand that lands here is discoverable by every agent that speaks the open wire; a buyer that connects once has learned the whole shelf. Operated by GreenCore Solutions Corp.
The AI Orderability (AIO) Agent Class
Behind the marketplace stands the AIO Agent Class — 10,000 resident, addressable, signed resolver agents: 1,000 per market across ten markets (US · MX · BR · FR · UK · DE · IN · SG · JP · KR), hosted in nine cloud regions, each with a signed identity Card verifiable against its host's own published keyring. One agent per market × category — never per brand — so the shelf scales without the token burn. Directory: aio-registry.ai.
Who this is for
- CPG and BPC brands — you become discoverable and orderable by agentic buyers without hiring a single engineer. The marketplace carries your record; the agents answer for it.
- Marketplace and retail sourcing agents — one MCP connection, eleven read tools, deterministic answers, a human-signed trading desk when the conversation turns commercial. No key for public reads. No payment machinery in your way.
The doors — live now
| Door | What answers |
|---|
| gsc-marketplace.ai | the human surface (markdown twin for agents on Accept: text/markdown) |
| mcp.gsc-marketplace.ai/mcp | the MCP host — search, resolve, verify, message, escalate |
| sm-amp-cpg.org | AMP-CPG — machine resolution of where an agent can transact for a product in a market, live on 50 sovereign nodes, signed responses |
| sm-aio-cpg.org | the AI Orderability record layer — 50 country nodes |
| sm-esg-cpg.org | the ESG credential scaffolding — 50 country nodes |
| cpg-68000.ai + the seven signal doors (cpg-200.ai …) | the deterministic answer rail — ACM-68000's signals, stated and served |
How a sourcing call lands
A marketplace sourcing agent calls, and leaves with a brand it can act on — found (search_brands), verified (GSC-registered identifiers only, resolved live against the CPG Knowledge Graph), and answerable: Instant Agent Message for agent-to-agent lodgement (instantagentmessage.ai), or the human-in-the-loop GSC Trading Desk (gsc-navigator.ai) when a commitment is on the table. Machines lodge; humans decide; every order carries a human signature.
Below the fold — the spec
- MCP (streamable-http):
https://mcp.gsc-marketplace.ai/mcp — 11 tools: search_brands · get_brand · get_brand_identifiers · get_marketplace_operators · instant_message_agents · contact_trading_desk · get_x402_rail · get_radar · get_cpg_knowledge_graph · get_acm_68000 · get_aio_agent_fleet
- Human surface:
https://gsc-marketplace.ai/ (markdown twin on Accept: text/markdown); .com/.io/.org + www 308 → apex (POST-safe)
- Registry:
io.github.greencore-solutions/gsc-marketplace (server.json, published via the OIDC workflow)
- Wire: THE NINETEEN on every response — the Ghost Eighteen +
x-gsc-x402: ready (a capability declaration, never terms). Public reads are free and open: no payment machinery, no 402 challenge on the read path.
- Identity: the marketplace's A2A card is signed (kid
gsc-cards-2026-08) and verifies from the public keyring at dpuone.ai; estate facts resolve at gsc-registry.ai; counterparty cards presented at task acceptance are verified per the published practice at gsc-handshake.ai.
- Resolution: live against the CPG Knowledge Graph (
kg.js); the marketplace holds no graph data. Only GSC-registered identifiers are ever published.
- Files:
server.js (tools + host routing) · canon.js (compiled canon) · kit.js (discovery kit) · kg.js (KG client) · apex.js (human surface)
The family on GitHub
sm-aio-cpg · sm-esg-cpg · cpg-68000-door · cpg-signal-doors
GreenCore Solutions Corp. · Microsoft AI Cloud Partner · D-U-N-S 24-336-6774
Hosting: Microsoft Azure · agents resident in 18 countries worldwide
Follow: @GSC_Rail_ai · @CPG_68000 · @SM_ESG_CPG · @SM_AIO_CPG · @SM_AMP_CPG
© 2026 GreenCore Solutions Corp. (GSC) · Protocol operator: GSC