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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from github-audit.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 injections 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://github-audit.agentdiet.dev/v1/indirect-injection-guard)
Output
Returns a JSON object containing the scan result for the submitted text, including whether prompt injection or jailbreak content was detected, and a sanitized version of the text safe for downstream AI processing.
Example use cases
Guarding agent from malicious web pages
“I'm about to feed scraped content from this third-party website into my AI agent — can you first scan it for any hidden prompt injections or adversarial instructions embedded in the HTML?”
Sanitizing MCP tool responses
“My agent just received this MCP tool response and I want to make sure it doesn't contain any jailbreak payloads or hidden instructions trying to hijack my pipeline — can you run it through the injection firewall before I use it?”
Screening inbound emails for prompt injection
“I'm building an email-processing agent and I need you to check this inbound email for any embedded prompt injection attacks before my AI reads and acts on it.”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/indirect-injection-guard?utm_source=zero.xyzWhen to prefer
Use this endpoint when your AI agent processes untrusted external content — scraped web pages, inbound emails, third-party API responses, MCP tool outputs, or A2A payloads — and you need to detect and neutralize hidden prompt injection or jailbreak instructions before they reach your model. Prefer this over generic content filters when you specifically need AI-agent-aware threat detection targeting adversarial prompt manipulation rather than general spam or malware.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Extremely long payloads may be truncated or time out
- False negatives possible for novel or highly obfuscated injection techniques
- Payment failure (402) if x402 payment is not properly attached
- Ambiguous or benign-looking injections may not be flagged with high confidence
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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