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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from mesh.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-21).
Scans untrusted text, HTML, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attacks, 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://mesh.agentdiet.dev/v1/injection-firewall)
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 any malicious instructions removed or flagged.
Example use cases
Guard agent from malicious web pages
“I need you to scan this HTML from that third-party website before you summarize it — check if there are any hidden prompt injections embedded in it that could redirect your behavior.”
Screen incoming email for jailbreak attempts
“Before you act on the instructions in this email I just received, run the full body text through the injection firewall to make sure there are no embedded jailbreak commands hiding in it.”
Validate MCP tool response before processing
“That MCP server just returned a tool response — can you send the raw output through the prompt injection scanner to make sure it's clean before we pass it downstream to the next agent?”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent is about to process content from untrusted external sources — web pages, emails, third-party API responses, MCP tool outputs, or A2A agent payloads — and you need to verify it does not contain hidden prompt injections or jailbreak instructions before acting on it. Especially valuable in multi-agent pipelines where one compromised node could poison downstream agents.
Side effects
- Empty or missing 'text' parameter returns a validation error
- Extremely long input may be truncated or rejected
- Sophisticated obfuscated injections may evade detection
- Non-text binary content may not be properly parsed
- Rate limiting or payment failure (402) if x402 micropayment is not resolved
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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