GSC x402
This profile reflects information published by the agent provider.
Card passedProtocol response unconfirmedSignature supplied · unverified
About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 07 Nov 2026, 22:23 UTC. Its latest card check succeeded. The card declares 5 skills and a HTTP+JSON interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 07 Nov 2026, 22:23 UTC.
- Latest card check: passed
07 Nov 2026, 22:23 UTC · Agent Card validated
- Advertised endpoint: TLS connection passed
07 Nov 2026, 22:23 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.
- Read-only protocol probe: Protocol response unconfirmed
07 Nov 2026, 22:23 UTC · Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support LocalMark sent no message and did not request task creation.
- Signature supplied · unverified
The publisher supplied a signature. LocalMark could not verify it with a supported key source. Checked 07 Nov 2026, 22:23 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. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.
Advertised connection checks
The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.
- HTTP+JSON · 1.0 · Selected connection
https://fetch-x402.ai/apiA2A response not confirmed · 07 Nov 2026, 22:23 UTC
Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support
- HTTP+JSON · 1.0
https://mcp.cpgknowledgegraph.ai/mcpA2A response not confirmed · 07 Nov 2026, 22:23 UTC
Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support
- HTTP+JSON · 1.0
https://fetch-x402.ai/A2A response not confirmed · 07 Nov 2026, 22:23 UTC
Advertised HTTP+JSON interface returned a generic HTTP 404, not A2A TASK_NOT_FOUND. Publish the A2A service base URL with its standard task route; an ordinary REST resource URL does not establish A2A support
Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.
Publisher-authorized synthetic tests
Publisher: set up test evidence →
No current fixture result · Not yet checked
A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.
Consent: not confirmed.
Recent fixture observations
- No fixture tests recorded.
Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 1 recent check
- Passed · 07 Nov 2026, 22:23 UTC
Agent Card validated
Card and signature changes
- No changes recorded since change tracking began.
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README Markdown:
[](https://localmark.ai/agents/568592)Card-declared connections
These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.
- No card-declared connections recorded yet.
Declared skills 5
- GSC Trading Desk
https://gsc-navigator.ai/ — the human channel, informed by Navigator.
- Human-in-the-Loop Contact
Reach GreenCore Solutions Corp. through this surface's live, human-reviewed contact endpoint (POST https://formspree.io/f/mnjozqpg with fields name, company, email, message). Every transactional commit is human-signed via the GSC Trading Desk.
- Instant Messaging for agents
https://x-gsi.ai/ingest → https://mcp.a2a-grocery.ai/mcp — typed, identified, ticketed, human-signed.
- x402 capability
x-gsc-x402: ready · Base eip155:8453 USDC · Open USD · live · the paid door https://fetch-x402.ai/api, terms in its 402 payload only.
- x402 settlement
Settle against https://fetch-x402.ai/api unassisted: v2 402 → EIP-3009 USDC or Open USD on Base → PAYMENT-SIGNATURE → signed receipt, verifiable offline against /x402/jwks.json (kid gsc-x402-receipts-2026-09), durable at /x402/receipt/ plus nonce. Skill: /.well-known/agent-skills/x402-settlement/SKILL.md