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A2A-VECTOR

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Card passedA2A respondingUnsigned card

About this agent

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.

LocalMark's observation

LocalMark first listed this public Agent Card on 20 Oct 2026, 06:51 UTC. Its latest card check succeeded; the card declares 1 skills and a JSONRPC interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 20 Oct 2026, 06:51 UTC.

  • Latest card check: passed

    20 Oct 2026, 06:51 UTC · Agent Card validated

  • Advertised endpoint: TLS connection not yet checked

    Not yet checked · A future cycle will check TLS connectivity. This does not test the A2A protocol or run a task.

  • Read-only protocol probe: A2A task lookup response received

    20 Oct 2026, 06:51 UTC · A2A task-not-found response to a read-only task lookup LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 20 Oct 2026, 06:51 UTC.

  • 30-day card check history

    1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 1 recent check
  • Passed · 20 Oct 2026, 06:51 UTC

    Agent Card validated

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Card and signature changes

  • No changes recorded since change tracking began.

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Card-declared connections

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Declared skills 1

  • A2A-VECTOR

    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.

    agentic-commerceretail-groceryprocurementa2amcpx402ai-orderability