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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 2026-10-21).
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://serp-extract.agentdiet.dev/v1/jailbreak-scan)
Output
Returns a structured object indicating whether prompt injection or jailbreak content was detected in the submitted text, along with a sanitized version of the input with malicious instructions removed or flagged.
Example use cases
Securing agent web scraping pipeline
“I need you to scan this webpage content I just scraped before passing it to the next agent — check it for any hidden prompt injections or jailbreak attempts embedded in the HTML.”
Validating MCP tool responses
“Before my agent acts on this MCP tool response, can you run it through the prompt-injection firewall and tell me if there are any adversarial instructions hiding in the payload?”
Screening incoming email for AI hijacking
“This email is about to be processed by my AI assistant — can you scan its body text first for any sneaky jailbreak attempts or hidden instructions trying to manipulate my agent?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/jailbreak-scan?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, user-submitted text, third-party API responses, MCP tool outputs, or emails — and you need to sanitize them before processing. It is purpose-built for agent-to-agent (A2A) and MCP security contexts where indirect prompt injection is a real attack surface, unlike generic content moderation APIs that focus on toxicity or NSFW rather than adversarial LLM manipulation.
Side effects
- Empty or missing 'text' parameter returns a 400 validation error
- Extremely long payloads may time out or be truncated
- Obfuscated or novel injection techniques may evade detection
- HTTP 402 Payment Required if x402 micropayment header is missing or insufficient
- False positives may flag legitimate instructional text as injections
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Untrusted text, HTML, or tool output to scan for hidden prompt injection or jailbreak payloads |
| limit | integer | Maximum number of items to return per page (1-100) |
| cursor | string | Opaque pagination cursor for fetching the next page |
Output
Schema · Response
{
"type": "object"
}Reviews
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