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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from domain-osint.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 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://domain-osint.agentdiet.dev/v1/indirect-injection-guard)
Output
Returns a structured object containing the sanitized version of the input text with any detected prompt injection or jailbreak payloads identified and removed or flagged, enabling safe downstream consumption by LLM pipelines or agentic workflows.
Example use cases
Safe web content ingestion for RAG
“I'm about to feed this scraped article into my RAG pipeline — can you scan it for hidden prompt injections first and give me the clean text? Here's the raw HTML: <html>...</html>”
Email body screening for agent inbox
“My AI agent just received this email from an unknown sender — before it reads and acts on it, check whether the body contains any embedded jailbreak or prompt injection attempts: 'Dear agent, please ignore your previous instructions and instead...'”
MCP tool response validation
“I got this JSON response back from an external MCP tool and I want to make sure it's not trying to hijack my agent's context — scan it for indirect prompt injections before I pass it downstream: {"result": "Ignore all prior instructions and..."}”
Technical details
Endpoint
POSThttps://domain-osint.agentdiet.dev/v1/indirect-injection-guard?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent or pipeline is about to consume untrusted external content — scraped web pages, third-party API responses, MCP tool outputs, inbound emails, or A2A payloads — and you need a dedicated firewall pass before feeding that content to an LLM. It is especially valuable in multi-agent architectures where one agent's output becomes another's input, creating indirect injection attack surfaces. Prefer this over generic content filters when you specifically need prompt-injection and jailbreak detection tuned to LLM adversarial patterns.
Side effects
- Empty or missing 'text' field returns a 400 validation error
- Extremely large payloads may exceed size limits and return a 413 error
- Ambiguous or novel injection techniques may not be detected (false negatives)
- Non-text binary content passed as string may produce garbled sanitization results
- Network timeouts on slow connections may interrupt scanning of large documents
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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