{"uid":"cap_Fb9-A3-lNFHJ3WxVfyH5o","slug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-0424d60e","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-firewall)","url":"https://serp-extract.agentdiet.dev/v1/prompt-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"},"limit":{"type":"integer","default":20,"maximum":100,"minimum":1,"description":"Maximum number of items to return per page (1-100)"},"cursor":{"type":"string","description":"Opaque pagination cursor for fetching the next page"}}},"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_w1K-JwjwipIyyTbNfoNEN","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 you process the HTML from that scraped page, run it through the prompt firewall to check for any hidden prompt injections or jailbreak instructions embedded in the content.","exampleUseCases":[{"title":"Sanitize scraped web content for agent pipeline","prompt":"I'm about to feed this web page's HTML into my agent — can you scan it for hidden prompt injection attacks first and give me the sanitized version? Here's the raw HTML: <html>..."},{"title":"Check inbound email before LLM processing","prompt":"This email came from an unknown sender and I want to pass it to my AI assistant — can you run it through the prompt injection firewall first to make sure there aren't any embedded jailbreak instructions hiding in the text?"},{"title":"Validate MCP tool response before agent ingestion","prompt":"My agent just got back a response from an external MCP tool and I don't fully trust the source — scan this payload for any indirect prompt injection or adversarial instructions before I let my agent act on it."}],"resultDescription":"Returns a structured object containing the sanitized version of the input text with any detected prompt injection or jailbreak payloads flagged or removed, enabling safe downstream processing by AI agents or LLMs.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely large payloads may time out or be truncated","Novel or highly obfuscated injection patterns may evade detection","Non-text binary content may not be parsed correctly","Payment failure (x402) if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — web pages, emails, MCP tool responses, or A2A messages — and you need a dedicated security layer to detect and strip hidden prompt injection or jailbreak payloads before they reach your LLM. Prefer this over manual filtering when processing arbitrary third-party content at scale in autonomous agent workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:48:11.577Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-18902259"}