Live Listing Proof

Name: Live Listing Proof
Author: Matthew Skowron

AgentA2A

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.

by Matthew Skowronhomepage ↗v1.3.0

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Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability111/111 checks ok

when	check	result	http	latency	detail
1 h ago	a2a card	ok	200	25 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
8 h ago	a2a card	ok	200	26 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
14 h ago	a2a card	ok	200	32 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
21 h ago	a2a card	ok	200	80 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
27 h ago	a2a card	ok	200	34 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
34 h ago	a2a card	ok	200	13 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
2 d ago	a2a card	ok	200	113 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
2 d ago	a2a card	ok	200	42 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
2 d ago	a2a card	ok	200	23 ms	protocol 1.0 · card: Live Listing Proof · 1 skills
3 d ago	a2a card	ok	200	51 ms	protocol 1.0 · card: Live Listing Proof · 1 skills

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

No long description beyond the summary.

listing-verificationmarketplaceclassifiedsauctionprice-checklisting-freshness

Declared skills

Verify Public Listing — Verify a public product, classified, marketplace or auction listing and return supported listing facts plus machine-readable source/listing state.

kind A2A Agent Card

name A2A Agent Card

summary A2A Agent Card

version A2A Agent Card

description A2A Agent Card

homepageUrl A2A Agent Card

publisherUrl A2A Agent Card

publisherName A2A Agent Card

Provenance

Where this record came from

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A2A Agent Cardhttps://live-listing-proof.mattskowronis.workers.dev/.well-known/agent-card.json

first seen 1 mo ago · fetched 1 mo agoopen ↗

Field history (7 recent events)

1 mo ago · declared · summary → "Verify a public product, classified, marketplace or auction listing immediately before an agent relies on or recommends
1 mo ago · declared · description → "Verify a public product, classified, marketplace or auction listing immediately before an agent relies on or recommends
1 mo ago · declared · publisherName → "Matthew Skowron"
1 mo ago · declared · publisherUrl → "https://live-listing-proof.mattskowronis.workers.dev"
1 mo ago · declared · homepageUrl → "https://live-listing-proof.mattskowronis.workers.dev/openapi.json"
1 mo ago · declared · version → "1.3.0"
1 mo ago · declared · protocols → ["a2a"]

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