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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from whale-momentum.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 attempts, returning sanitized output.
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://whale-momentum.agentdiet.dev/v1/indirect-injection-guard)
Output
Returns a structured object indicating whether prompt injection or jailbreak content was detected in the input text, along with a sanitized version of the text with malicious instructions stripped or flagged, enabling safe downstream processing by AI agents.
Example use cases
Sanitize scraped web content for agent pipeline
“I'm about to feed this webpage text into my AI agent — can you first scan it for any hidden prompt injections or adversarial instructions and return the clean version?”
Validate incoming MCP tool response
“My agent just received this MCP tool response from an external server — before it acts on it, please scan it for embedded jailbreak or prompt injection payloads.”
Screen user-submitted email for LLM attacks
“A user forwarded this email to my AI assistant — check it for any indirect prompt injection attempts or hidden instructions before my assistant reads and acts on it.”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/indirect-injection-guard?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent is about to process content from untrusted external sources — scraped web pages, user-submitted emails, third-party MCP/A2A tool responses — and you need a dedicated security layer to strip adversarial instructions before they can hijack your agent's behavior. Prefer it over generic content filters when the threat model is specifically indirect prompt injection or jailbreak payloads targeting LLMs.
Side effects
- Empty or missing 'text' parameter returns a validation error
- Extremely large payloads may time out or be truncated
- Obfuscated or novel injection techniques may evade detection
- Non-text binary content may not be parseable
- Payment failure via x402 results in 402 response blocking the call
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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