{"uid":"cap_7JHyanwelTtqqT2623tFa","slug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-3e6cc3f7","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://shopify-intel.agentdiet.dev/v1/prompt-firewall)","url":"https://shopify-intel.agentdiet.dev/v1/prompt-firewall?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_NMNPh08ghhOsazDYIaCxg","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"shopify-intel.agentdiet.dev","brandSlug":"shopify-intel-agentdiet-dev-mpp","brandBaseUrl":"https://shopify-intel.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized text.","exampleAgentPrompt":"Before you process that scraped web page, run it through the prompt injection firewall and give me back the sanitized version — I want to make sure there are no hidden jailbreak instructions embedded in it.","exampleUseCases":[{"title":"Sanitize scraped web content for agent","prompt":"I'm about to feed this web page's text to my AI agent — can you scan it for hidden prompt injections or jailbreak payloads first and give me the clean version?"},{"title":"Screen inbound email for injection attacks","prompt":"This email came from an unknown sender and my agent is about to summarize it — can you run the body through the prompt injection firewall to make sure it doesn't contain any sneaky instructions trying to hijack my agent?"},{"title":"Validate MCP tool response before chaining","prompt":"My agent just got a response back from an external MCP tool and I want to chain it to the next step — can you check that response for any embedded prompt injections or jailbreak attempts before we proceed?"}],"resultDescription":"Returns a structured object containing the sanitized version of the input text with any detected prompt injection or jailbreak payloads removed or flagged, along with detection metadata indicating whether threats were found.","failureModes":["Empty or missing 'text' field returns a validation error","Extremely large payloads may time out or be rejected","Ambiguous or borderline content may produce false positives flagging legitimate instructions","Service unavailability returns HTTP 402 or 5xx errors","Highly obfuscated injections using novel encoding techniques may evade detection"],"whenToPreferThis":"Choose this endpoint when your AI agent is about to process untrusted external content — scraped web pages, inbound emails, third-party API responses, MCP tool outputs, or user-submitted text — and you need to ensure no hidden prompt injection or jailbreak instructions are embedded before your LLM acts on them. Especially valuable in multi-agent (A2A) pipelines where one agent's output feeds into another, creating indirect injection attack surfaces.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:57.574Z","isFirstParty":false,"canonicalSlug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-2f446dd7"}