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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 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://domain-osint.agentdiet.dev/v1/prompt-injection-shield)
Output
Returns a sanitized version of the submitted text with any detected prompt injection or jailbreak payloads identified and neutralized, along with detection metadata indicating whether malicious content was found.
Example use cases
Sanitize scraped web page before agent use
“I just scraped this blog post for my research agent to summarize, but I'm worried the site might have embedded hidden instructions in the text. Can you scan it for prompt injections before passing it along? Here's the raw HTML content.”
Screen incoming email for jailbreak payload
“My agent is about to process this customer email, but it looks suspicious — can you run it through the prompt-injection firewall first to make sure it doesn't contain any hidden instructions trying to hijack my agent?”
Validate MCP tool response before chaining
“My agent just got a response back from an external MCP tool and I want to make sure it's safe before using it in the next step of the workflow — please scan this payload for any embedded prompt injections or jailbreak content.”
Technical details
Endpoint
POSThttps://domain-osint.agentdiet.dev/v1/prompt-injection-shield?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent is about to ingest untrusted third-party content — scraped web pages, external emails, MCP tool responses, or A2A payloads — and you need a dedicated security layer to detect and strip hidden prompt injections or jailbreak attempts before they reach your LLM. Prefer this over generic content filters when you specifically need protection against indirect prompt injection in agentic pipelines.
Side effects
- Empty or missing 'text' field returns a 400 validation error
- Extremely large payloads may be rejected or truncated
- Payment required (HTTP 402) if x402 USDC micropayment header is not provided
- False negatives possible for novel or obfuscated injection techniques
- Non-text binary content may not be processed correctly
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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