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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 2026-10-23).
Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized text.
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/rag-poison-shield)
Output
Returns a sanitized version of the input text with hidden prompt injections and jailbreak payloads detected and removed, along with threat detection metadata indicating whether malicious content was found.
Example use cases
RAG pipeline safety check
“I'm about to feed these search results into my RAG pipeline — can you scan each chunk for hidden prompt injections or adversarial instructions and strip them out before indexing?”
Email-based injection protection
“I just received this email from an unknown sender that my agent will process — please scan the body for any embedded jailbreak attempts or hidden AI instructions before my agent reads it.”
MCP tool output validation
“My agent got this response back from an external MCP tool — before it acts on it, can you check whether the payload contains any indirect prompt injection or adversarial override instructions?”
Technical details
Endpoint
POSThttps://polymarket-odds.agentdiet.dev/v1/rag-poison-shield?utm_source=zero.xyzWhen to prefer
Use this endpoint whenever an AI agent must process text from untrusted external sources — scraped web pages, emails, third-party API responses, MCP tool outputs, or user-submitted content — before passing that text into an LLM context window. It is particularly valuable in multi-agent (A2A) pipelines where one agent's output becomes another agent's input, creating indirect injection attack surfaces. Prefer this over manual regex filtering when you need a purpose-built, AI-aware firewall that understands prompt injection semantics.
Side effects
- Empty or missing 'text' field returns a 400 validation error
- Extremely long payloads may hit size limits or timeout
- Obfuscated or novel injection techniques may evade detection
- Non-text binary content is not supported
- Payment failure (402) if x402 micropayment is not correctly attached
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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