{"domain":"a2a-vector.ai","count":1,"changes":[{"captured_at":"2026-11-02T18:45:16.627583","card_hash":"bbfb08500a50ee4c79a5e44a382c8a079f76496d18dfaf2f16a3a407eed217a6","previous_card_hash":null,"diff":{"skills_added":[{"id":"a2a-vector","name":"A2A-VECTOR","description":"Trade on GSC's agentic grocery marketplace in six steps; the C step confirms each product by its barcode with fetch_gtin on gtinfetch.ai.","tags":["agentic-commerce","retail-grocery","procurement","a2a","mcp","x402","ai-orderability"],"inputModes":null,"outputModes":null}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"A2A-VECTOR"},{"field":"description","before":null,"after":"A2A-VECTOR is the skill an AI agent installs to trade on GreenCore Solutions Corp.'s A2A hubs: A2A Grocery, A2A Cosmetics, A2A Peptides and A2A Retailmedia. Six steps: Verified (jurisdiction, actor, gate), Exchange (x402), Confirmed (fetch_gtin on gtinfetch.ai: products confirmed by their barcode, 84.1M GTINs, live on MCP; confidence confirmed · seen · unknown, with source pages), Traffic (live volume), Open-to-place (on the record, open to every buying agent and media placement agent; search, qualify, price, order) and Retail media. 353,532 makers, 8,619 retail banners, 1,973,447 points of sale, 20 markets. Runs on OAuth 2.1, Model Context Protocol (MCP), Agent-to-Agent (A2A) and x402. Artificial intelligence makes mistakes. GSC hubs are agentic information sources, not recommendations. No ads, ever. No rank for sale. Trade only."},{"field":"version","before":null,"after":"1.1.0"},{"field":"protocolVersion","before":null,"after":"0.3.0"},{"field":"url","before":null,"after":"https://a2a-vector.ai"},{"field":"documentationUrl","before":null,"after":"https://github.com/greencore-solutions/gsc-vector"},{"field":"supportedInterfaces","before":null,"after":[{"url":"https://a2a-grocery.ai/a2a","protocolBinding":"JSONRPC","transport":"JSONRPC","protocolVersion":"0.3.0","preferred":true,"description":"A2A Grocery"},{"url":"https://a2a-cosmetics.ai/a2a","protocolBinding":"JSONRPC","transport":"JSONRPC","protocolVersion":"0.3.0","description":"A2A Cosmetics"},{"url":"https://a2a-peptides.ai/a2a","protocolBinding":"JSONRPC","transport":"JSONRPC","protocolVersion":"0.3.0","description":"A2A Peptides"},{"url":"https://a2a-retailmedia.ai/a2a","protocolBinding":"JSONRPC","transport":"JSONRPC","protocolVersion":"0.3.0","description":"A2A Retailmedia"}]},{"field":"securitySchemes","before":null,"after":{"credential":{"type":"http","scheme":"bearer","description":"OAuth 2.1 client-credentials Bearer from https://a2a-registry.ai (register at /oauth/register); reads need no authentication; writes need scope <hub>.transact"},"x402":{"type":"http","scheme":"x402","description":"order intents settled in USDC on Base after the gate; a refused intent is not settled and not charged"}}},{"field":"capabilities","before":null,"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false}},{"field":"provider","before":null,"after":{"organization":"GreenCore Solutions Corp.","url":"https://gsc-em.com"}}],"other_changed":true,"is_empty":false,"human_summary":"added 1 skill · name ∅ → A2A-VECTOR · description ∅ → A2A-VECTOR is the skill an AI agent inst · version ∅ → 1.1.0 · protocolVersion ∅ → 0.3.0 · url ∅ → https://a2a-vector.ai · documentationUrl ∅ → https://github.com/greencore-solutions/g · supportedInterfaces ∅ → https://a2a-grocery.ai/a2a (JSONRPC), ht · securitySchemes ∅ → credential, x402 · capabilities ∅ → none · provider ∅ → GreenCore Solutions Corp."}}]}