{"uid":"cap_puLnUguGE4pniSCBPNypY","slug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-73104b1a","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://serp-extract.agentdiet.dev/v1/prompt-injection-shield)","url":"https://serp-extract.agentdiet.dev/v1/prompt-injection-shield?utm_source=zero.xyz","method":"POST","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_irGCAA0ZUIWiGUgijSnQl","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized output.","exampleAgentPrompt":"Before I process this scraped web page content in my agent pipeline, can you scan it for any hidden prompt injection or jailbreak instructions and return the sanitized version?","exampleUseCases":[{"title":"Securing agent web browsing pipeline","prompt":"I'm building an agent that browses the web and I want to make sure scraped page content doesn't contain any hidden prompt injections before my agent acts on it — can you scan this HTML and return the safe, sanitized text?"},{"title":"Filtering untrusted email before LLM processing","prompt":"Before my AI assistant processes this incoming email, scan it for any hidden jailbreak or prompt injection payloads — I don't want a malicious sender to hijack my agent's behavior."},{"title":"Validating MCP tool response safety","prompt":"My agent just got a response back from an external MCP tool and I want to make sure it doesn't contain any embedded adversarial instructions trying to override my agent's system prompt — can you check this payload?"}],"resultDescription":"Returns a JSON object containing the sanitized version of the input text with any detected prompt injection or jailbreak content identified and removed or flagged, along with detection metadata indicating whether a threat was found.","failureModes":["Empty or missing 'text' field returns a 400 validation error","Extremely long payloads may time out or exceed size limits","False negatives possible if injection technique is novel or obfuscated","False positives may sanitize legitimate instruction-like text","Network or upstream service errors return 5xx responses","Payment required (HTTP 402) if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when your agent pipeline ingests untrusted external content — web pages, emails, tool responses, or third-party A2A payloads — and you need to detect and strip hidden prompt injection or jailbreak instructions before passing content to an LLM. It is purpose-built for agent security in A2A and MCP ecosystems, making it preferable to generic content filters that lack LLM-adversarial awareness.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:35:58.823Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-18902259"}