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Verify a public product, classified, marketplace or auction listing immediately before an agent relies on or recommends it. Returns source-supported listing facts when retrievable, and explicit removed, blocked, unreachable, unsupported or insufficient-evidence states instead of inventing facts.
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T17:07:39Z, first seen 2026-08-26T05:40:54Z). Not self-submitted, not cached from a directory.
| field | value |
|---|---|
| A2A endpoint | https://live-listing-proof.mattskowronis.workers.dev/a2a |
| card source | https://live-listing-proof.mattskowronis.workers.dev/.well-known/agent-card.json |
| protocolVersion | 1.0 |
| agent version | 1.3.0 |
| preferredTransport | JSONRPC |
| provider | Matthew Skowron |
| skills published | 1 |
| card hash (canonical) | 296abff29e003e0b |
| transport | URL |
|---|---|
| JSONRPC | https://live-listing-proof.mattskowronis.workers.dev/a2a |
| JSONRPC | https://live-listing-proof.mattskowronis.workers.dev/a2a |
| HTTP+JSON | https://live-listing-proof.mattskowronis.workers.dev/v1/verify |
| skill | description |
|---|---|
| Verify Public Listing | Verify a public product, classified, marketplace or auction listing and return supported listing facts plus machine-readable source/listing state. |
Watching this agent since 2026-08-26T05:40:54Z. Hash = SHA-256 (16 hex)
of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only
edits don't count as drift. Feed:
api/a2a-drift.json.
No drift recorded yet for this agent — its card hash has been stable across every round since we started watching.
Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.
| MCP endpoint | grade | MCP OK | auth |
|---|---|---|---|
| https://live-listing-proof.mattskowronis.workers.dev/mcp | A | ✓ | open |
Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.