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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from domain-osint.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-23).
Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attacks, 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://domain-osint.agentdiet.dev/v1/prompt-firewall)
Output
Returns a structured object indicating whether prompt injection or jailbreak content was detected in the input, along with sanitized text safe for downstream LLM consumption. Includes detection flags and cleaned payload output.
Example use cases
Guarding agent from malicious web pages
“I'm about to feed this webpage's text to my agent pipeline — can you first scan it for any hidden prompt injections or instructions trying to hijack the agent? Here's the raw content.”
Sanitizing incoming email before LLM processing
“Check this email body I just received for any embedded jailbreak payloads or prompt injection attacks before my AI assistant reads and summarizes it.”
Validating MCP tool response safety
“My agent just got a response back from an external MCP tool — can you run it through the prompt firewall to make sure it doesn't contain any adversarial instructions trying to override my agent's behavior?”
Technical details
Endpoint
POSThttps://domain-osint.agentdiet.dev/v1/prompt-firewall?utm_source=zero.xyzWhen to prefer
Use this endpoint when your AI agent is about to process untrusted external content — scraped web pages, third-party API responses, user emails, MCP tool outputs, or A2A payloads — and you need a fast, dedicated firewall layer to strip adversarial prompt injections before they reach your LLM. Prefer this over general content moderation endpoints when the threat model is specifically indirect prompt injection or jailbreak attempts targeting agent behavior.
Side effects
- Empty or missing 'text' field returns a validation error
- Extremely large payloads may exceed processing limits
- Obfuscated or highly novel injection techniques may evade detection
- Non-text binary content may produce unexpected results
- Network timeout on unusually large HTML documents
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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