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A2A Indirect Prompt-Injection & Jailbreak Firewall
A2A Indirect Prompt-Injection & Jailbreak Firewall is a paid API for AI agents from whale-momentum.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://whale-momentum.agentdiet.dev/v1/mcp-injection-firewall)
Output
Returns a JSON object containing the scan result for the submitted text, including whether prompt injection or jailbreak payloads were detected and a sanitized version of the input text safe for downstream LLM or agent processing.
Example use cases
Safe web scraping for AI pipelines
“I just scraped this webpage to feed into my agent — can you scan the raw HTML for any hidden prompt injections or jailbreak instructions before we process it further?”
Sanitizing MCP tool responses
“My agent just got back a response from an external MCP tool and I want to make sure it doesn't contain any embedded override instructions — can you run it through the injection firewall and give me the sanitized version?”
Email body safety check
“Before my AI reads and summarizes this incoming email from an unknown sender, scan the body text for any hidden prompt-injection attempts or jailbreak payloads.”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/mcp-injection-firewall?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent or pipeline processes content from untrusted external sources — scraped web pages, inbound emails, third-party MCP tool responses, or A2A agent payloads — and you need a real-time guard against indirect prompt injection and jailbreak attacks before feeding that content to an LLM. It is especially appropriate for agentic architectures where tool outputs are automatically processed without human review.
Side effects
- Empty or missing 'text' parameter returns a validation error
- Extremely large payloads may be rejected or truncated
- Payment not fulfilled (HTTP 402) blocks the scan from completing
- Network timeout if the firewall service is under load
- False negatives possible for novel or obfuscated injection techniques
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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