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broker-injection-firewall
x402
broker-injection-firewall is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.005/call, status unknown (last checked 2026-10-20).
Scans untrusted text (web pages, emails, MCP responses, 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://x402broker.com/v1/injection-firewall)
Output
Returns sanitized text with hidden prompt injections removed or flagged, along with detection results indicating whether adversarial content was found in the input.
Example use cases
Sanitize scraped web content for agent
“I'm about to feed this web page's text into my AI pipeline — can you first scan it for hidden prompt injections or adversarial instructions so it's safe to process?”
Screen inbound A2A payload before execution
“My agent just received a response from an external A2A service. Before we act on it, run it through the prompt injection firewall to make sure there are no embedded jailbreak commands hiding in the payload.”
Validate email body before LLM summarization
“I want to summarize this customer email with my AI, but it came from an untrusted sender — can you check the email body for any prompt injection attacks before passing it to the model?”
Technical details
Endpoint
GEThttps://x402broker.com/v1/injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent needs to safely process untrusted external content — such as scraped web pages, inbound emails, third-party API responses, or A2A/MCP payloads — before passing them into an LLM or agentic pipeline. It is specifically designed for indirect prompt injection and jailbreak detection in agentic workflows, making it ideal as a security layer in multi-agent orchestration systems.
Side effects
- Missing required 'text' query parameter returns an error
- Extremely long input text may exceed processing limits
- Novel or sophisticated injection techniques may evade detection
- Non-text binary input formats are not supported
- Network timeout for very large payloads
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"
}Tags
x402
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