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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from mcp-compiler.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://mcp-compiler.agentdiet.dev/v1/llm-jailbreak-defense)
Output
Returns a sanitized version of the input text with any detected prompt injection or jailbreak payloads identified and neutralized, along with detection metadata indicating whether threats were found.
Example use cases
Sanitizing scraped web pages for agents
“I'm about to feed this scraped article into my agent pipeline — first scan it for any hidden prompt injection or jailbreak instructions embedded in the text and give me the sanitized version.”
Screening inbound emails for injection attacks
“Check this email body I just received for any hidden instructions that could hijack my AI assistant — I want to make sure it's clean before my agent reads and acts on it.”
Validating MCP tool responses before use
“Before my agent acts on this MCP tool response, run it through the prompt-injection firewall to detect any adversarial payloads or jailbreak attempts hidden in the output.”
Technical details
Endpoint
GEThttps://mcp-compiler.agentdiet.dev/v1/llm-jailbreak-defense?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent needs to safely ingest content from untrusted external sources — such as web scrapes, user-submitted text, third-party API responses, emails, or MCP/A2A tool outputs — and you want to detect and strip hidden prompt injections or jailbreak payloads before they reach your LLM. Prefer this over generic content filters when the threat model specifically involves adversarial prompt manipulation in agentic pipelines.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Extremely long payloads may be truncated or time out
- Novel or obfuscated injection techniques may evade detection
- Non-text binary content will not be correctly analyzed
- Payment failure (x402) blocks the request from being processed
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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