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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from polymarket-odds.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://polymarket-odds.agentdiet.dev/v1/injection-firewall)
Output
Returns a sanitized version of the input text with prompt injection and jailbreak payloads removed or flagged, along with detection metadata indicating whether malicious content was found.
Example use cases
Sanitize scraped web content for agent pipeline
“I'm about to feed this scraped article into my AI agent — can you first check it for any hidden prompt injection instructions or jailbreak payloads and give me the clean text?”
Screen incoming email before agent reads it
“Before my agent processes this email from an unknown sender, run it through the injection firewall to make sure there are no embedded instructions trying to hijack its behavior.”
Validate MCP tool response before acting on it
“This MCP tool just returned a response — before I let my agent act on it, scan the payload for any indirect prompt injection or jailbreak attempts hidden in the output.”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent pipeline ingests untrusted external content — web pages, emails, third-party API responses, MCP tool outputs, or A2A payloads — and you need to screen for indirect prompt injection or jailbreak attempts before passing that content into your LLM context. Especially valuable in agentic workflows where the agent autonomously browses or calls external tools.
Side effects
- Empty or missing 'text' parameter returns a validation error
- Extremely long inputs may be truncated or rejected
- Sophisticated obfuscated injections may evade detection
- Payment failure (HTTP 402) if x402 USDC balance is insufficient
- Response schema is generic object — exact field names for detection results may vary
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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