SYNTHORA A2A Agent Card Validator

About this agent

LocalMark's observation

LocalMark first listed this public Agent Card on 18 Oct 2026, 18:39 UTC. Its latest card check succeeded; the card declares 1 skills and a A2A 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 19 Oct 2026, 01:25 UTC.

• Latest card check: passed

  19 Oct 2026, 01:25 UTC · Agent Card validated

• Advertised endpoint: TLS connection passed

  19 Oct 2026, 01:25 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

  18 Oct 2026, 18:39 UTC · Endpoint did not answer the bounded read-only request LocalMark sent no message and did not request task creation.

• Unsigned card

  This card does not provide a digital signature. Checked 19 Oct 2026, 01:25 UTC.

• 30-day card check history

  4 of 4 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.

Also observed in public indexes

LocalMark found this card URL in these sources. Last observed does not confirm a current listing or shared ownership.

• Agent Tools Catalog

  Last observed 18 Oct 2026, 18:36 UTC · Source index ↗

Recent card checks

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

View the 30-day check log as JSON →

Card and signature changes

• No changes recorded since change tracking began.

View detailed card versions → · Subscribe to card changes

Share this listing

Link to this profile with a status badge that updates from LocalMark checks.

README Markdown:

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.

View all connections as JSON →

Declared skills 1

• A2A Agent Card Validator

  Validate an A2A Agent Card (URL or JSON) against the spec: required fields, skill schemas, endpoint reachability, security schemes. Ed25519-signed. $0.01 USDC per call via x402 (CDP facilitator) on Base. POST JSON to https://agentcard.hergertsynthora.com/service.

  a2aagent-cardvalidationagent-trustinteropx402