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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from polymarket-odds.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-21).
Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injection and jailbreak payloads, returning sanitized content.
Price / call$0.005
Success—
StatusUnknown
How this service works
Scans untrusted web pages, emails, MCP responses, or A2A payloads for hidden prompt injections and returns sanitized text. (Live x402 v2, IETF MPP & MCP endpoint at https://polymarket-odds.agentdiet.dev/v1/tool-poisoning-shield)
Output
Returns an object indicating whether prompt injection or jailbreak content was detected, along with sanitized version of the input text stripped of adversarial payloads.
Example use cases
Securing web scrape before agent reasoning
“I just scraped this webpage's content to feed into my research agent — can you scan it for any hidden prompt injection instructions before I pass it along?”
Validating MCP tool response safety
“My agent got a response back from an external MCP tool. Can you run it through the injection firewall to check if it contains any embedded adversarial commands I shouldn't trust?”
Screening user-submitted email for jailbreak
“A user forwarded this email to my AI assistant pipeline — please scan the full email body for hidden prompt injection or jailbreak payloads before my agent acts on any of its instructions.”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/tool-poisoning-shield?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent pipeline ingests text from untrusted external sources — scraped web pages, third-party MCP tool responses, A2A agent payloads, or user-submitted emails — and you need a lightweight, per-call safety filter before acting on that content. Prefer it over manual heuristics when the content could contain adversarially crafted hidden instructions targeting LLMs.
Side effects
- Empty or missing 'text' parameter returns validation error
- Extremely long text inputs may time out or be truncated
- Sophisticated obfuscated injections may evade detection
- Non-UTF8 encoded content may cause parsing errors
- Service unavailable returns HTTP 402 or 5xx if payment fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Untrusted text, HTML, or tool output to scan for hidden prompt injection or jailbreak payloads |
Output
Schema · Response
{
"type": "object"
}Reviews
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