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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from alpha-stream.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 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://alpha-stream.agentdiet.dev/v1/llm-jailbreak-defense)
Output
Returns a sanitized version of the submitted text with hidden prompt injections and jailbreak payloads removed or flagged, allowing agents to safely process external content without risk of adversarial manipulation.
Example use cases
Safe web browsing for AI agent
“I need you to fetch this webpage and scan it for hidden prompt injections before summarizing it — pass the full HTML through the jailbreak firewall first so we know it's safe to process.”
Email triage agent protection
“Before my agent reads and categorizes these incoming emails, run each email body through the prompt injection scanner to make sure none of them are trying to hijack the agent's behavior.”
MCP tool response sanitization
“The MCP server just returned this tool response — can you scan it for any embedded adversarial instructions or jailbreak payloads before we feed it back into the reasoning loop?”
Technical details
Endpoint
GEThttps://alpha-stream.agentdiet.dev/v1/llm-jailbreak-defense?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent needs to process untrusted external content — web pages, emails, tool responses, or user-provided text — before passing it to an LLM, and you need a dedicated firewall layer specifically designed for A2A/MCP environments with x402 micropayment support. Prefer this over generic content filters when dealing with agentic pipelines where indirect prompt injection is the primary threat vector.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Very large payloads may exceed request limits or increase latency
- Novel or highly obfuscated injection techniques may evade detection
- Non-text binary content may not be correctly parsed
- Payment failure (x402) if USDC balance is insufficient
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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