PROMPT-GUARD — A2A Indirect Prompt-Injection & Jailbreak Firewall
This profile reflects information published by the agent provider.
Card passedProtocol response unconfirmedSignature unverified
About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 20 Oct 2026, 00:50 UTC. Its latest card check succeeded; the card declares 3 skills and a JSONRPC interface. LocalMark has not run a task against this agent.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 20 Oct 2026, 00:50 UTC.
- Latest card check: passed
20 Oct 2026, 00:50 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: Protocol response unconfirmed
20 Oct 2026, 00:50 UTC · No recognizable A2A error response LocalMark sent no message and did not request task creation.
- Signature unverified
This card claims a signature, but LocalMark could not verify it with a supported key source. Checked 20 Oct 2026, 00:50 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.
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 20 Oct 2026, 00:47 UTC · Source index ↗
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 1 recent check
- Passed · 20 Oct 2026, 00:50 UTC
Agent Card validated
Card and signature changes
- No changes recorded since change tracking began.
Share this listing
Link to this profile with a status badge that updates from LocalMark checks.
README Markdown:
[](https://localmark.ai/agents/246720)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 3
- A2A Indirect Prompt-Injection & Jailbreak Firewall
Scans untrusted web pages, emails, MCP responses, or A2A payloads for hidden prompt injections and returns sanitized text.
- Check Agent Wallet & Free-Trial Quota
Inspect remaining free-trial calls, prepaid USDC session pass balance, and cumulative ROI savings.
- scan_prompt_injection (MCP JSON-RPC)
Execute scan_prompt_injection directly over MCP Streamable HTTP JSON-RPC 2.0 at https://prompt-guard-72343955726.us-central1.run.app/mcp/prompt-guard.