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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from serp-extract.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 injection and jailbreak attacks, 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://serp-extract.agentdiet.dev/v1/jailbreak-scan)
Output
Returns a structured JSON object indicating whether the input contains prompt injection or jailbreak payloads, along with sanitized text with malicious instructions neutralized or flagged, enabling safe downstream consumption by AI agents.
Example use cases
Sanitizing scraped web content for agent pipelines
“I'm about to feed this raw HTML from an untrusted website into my agent — can you scan it first to make sure there are no hidden prompt injection instructions embedded in the page that could hijack the agent's behavior?”
Vetting incoming emails before agent processing
“My agent is about to read and summarize this inbound email from an unknown sender — please check the email body for any jailbreak attempts or indirect prompt injection payloads before letting the agent act on it.”
Validating MCP tool responses before downstream use
“My agent just got a response back from an external MCP tool and I want to make sure it's safe — can you scan this tool output for any hidden instructions or adversarial content trying to override my agent's behavior?”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/jailbreak-scan?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your agent pipeline ingests content from untrusted external sources — scraped web pages, third-party emails, MCP tool responses, or A2A agent payloads — and you need a dedicated firewall layer to detect and neutralize hidden prompt injection or jailbreak attempts before the content influences agent behavior. Prefer this over manual content filtering when operating autonomous agent fleets that cannot afford trust assumptions about external data.
Side effects
- Empty or missing 'text' field returns a validation error
- Extremely large payloads may be rejected or truncated
- Sophisticated obfuscated injections may not be detected with full accuracy
- Network timeout for very long inputs
- Payment required error (HTTP 402) if x402 micropayment is not provided
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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