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
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 onAccept: text/markdown);.com/.io/.org+www308 → 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