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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-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://github-audit.agentdiet.dev/v1/injection-firewall)
Output
Returns a sanitized version of the submitted text with any detected prompt-injection or jailbreak payloads identified and removed or flagged, along with detection metadata indicating whether threats were found.
Example use cases
Screening scraped web content for agents
“I just scraped this article to feed into my research agent — can you scan it through the injection firewall first to make sure there are no hidden prompt-injection attacks embedded in the HTML before my agent reads it?”
Validating MCP tool responses
“My agent just got back a response from an external MCP tool — before I let it act on the result, can you run it through the prompt-injection scanner to check if someone embedded malicious instructions in the payload?”
Filtering untrusted email content
“I'm building an email-processing agent and it just received this inbound message from an unknown sender — please scan the email body for any hidden jailbreak or prompt-injection attempts before the agent summarizes it.”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent needs to safely consume text from untrusted external sources — scraped web pages, inbound emails, third-party MCP tool responses, or A2A payloads — before acting on them. It is specifically designed to catch indirect prompt-injection and jailbreak patterns rather than general content moderation, making it the right choice for agent pipeline security rather than generic toxicity filtering.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Extremely long inputs may be truncated or rejected
- Obfuscated injections using novel encoding may evade detection
- Payment failure (HTTP 402) if x402 micropayment is not properly attached
- Rate limiting or timeouts on high-volume scans
- False positives flagging legitimate content that resembles injection patterns
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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