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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from shopify-intel.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 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://shopify-intel.agentdiet.dev/v1/injection-firewall)
Output
Returns a sanitized version of the input text with prompt injection and jailbreak payloads identified and removed, along with detection metadata indicating whether threats were found.
Example use cases
Agent pipeline safety gate
“I'm building an agent that reads emails and acts on them — before my agent processes each email body, scan it for any hidden prompt injection attempts and return the sanitized text so I know it's safe to pass downstream.”
MCP tool response screening
“My agent just got a response back from an external MCP tool — can you run that response payload through the injection firewall to check if it contains any jailbreak instructions before my agent acts on it?”
Web scraping content sanitization
“I scraped this webpage to feed into my AI pipeline, but I want to make sure there aren't any hidden 'ignore previous instructions' style attacks embedded in it — scan it for prompt injections and give me the clean version.”
Technical details
Endpoint
GEThttps://shopify-intel.agentdiet.dev/v1/injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent needs to process untrusted external content — web pages, emails, MCP tool responses, or A2A payloads — before acting on it, and you need to detect and strip indirect prompt injection or jailbreak attempts. Prefer this over general content filters when you specifically need protection against adversarial AI prompt manipulation rather than general content moderation.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Extremely large payloads may be rejected or time out
- Novel or obfuscated injection techniques may evade detection
- Payment via x402 required; missing payment header returns HTTP 402
- Service unavailability returns 5xx errors
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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