{"uid":"cap_ST05kPuqCBJsLfTn2-yhK","slug":"email-verify-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-d6c411ec","name":"A2A Indirect Prompt-Injection & Jailbreak Firewall","description":"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://email-verify.agentdiet.dev/v1/injection-firewall)","url":"https://email-verify.agentdiet.dev/v1/injection-firewall?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["text"],"properties":{"text":{"type":"string","minLength":1,"description":"Untrusted text, HTML, or tool output to scan for hidden prompt injection or jailbreak payloads"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.005","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0XLXzvxsOcMYT0KX7iL-W","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized content.","exampleAgentPrompt":"Before you process that scraped webpage, run the raw HTML through the injection firewall to check for hidden prompt injections or jailbreak payloads — I want to see the sanitized version.","exampleUseCases":[{"title":"Sanitize scraped web content for agent pipeline","prompt":"I'm about to feed this scraped article HTML into my agent pipeline — can you scan it for any hidden prompt injection instructions first and give me back the clean version?"},{"title":"Validate MCP tool response before agent action","prompt":"Before my agent acts on that MCP tool response, check the raw payload for any embedded jailbreak or prompt hijacking attempts — flag anything suspicious and return the sanitized text."},{"title":"Screen inbound email for agent manipulation","prompt":"This email is going to be read and summarized by my AI agent — scan the body text for any hidden prompt injection or jailbreak payloads before it gets processed."}],"resultDescription":"Returns a JSON object containing the sanitized version of the input text with hidden prompt injections and jailbreak payloads removed or flagged, along with detection signals indicating whether malicious content was found.","failureModes":["Empty or missing 'text' parameter returns a 400 validation error","Extremely long text inputs may be truncated or rejected","False negatives possible for novel or highly obfuscated injection techniques","Payment failure (402) if x402 USDC balance is insufficient","Network timeout on very large HTML payloads"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — web pages, emails, third-party API responses, MCP tool outputs, or A2A agent messages — and you need to detect and strip hidden prompt injections or jailbreak payloads before they can manipulate downstream agent behavior. Prefer this over generic content filters when you specifically need LLM-aware injection pattern detection rather than spam or malware scanning.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:39.903Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-dd577fbf"}