{"uid":"cap_F8TfutV6vz7jzkWWxiGgD","slug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-1da93177","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/system-prompt-guard)","url":"https://shopify-intel.agentdiet.dev/v1/system-prompt-guard?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_KP2NuftwVPcdvIZ6B0Eh0","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 output.","exampleAgentPrompt":"Before you process this scraped web page, run it through the prompt injection firewall to check for any hidden jailbreak instructions or injected prompts — here's the raw HTML: <paste content here>.","exampleUseCases":[{"title":"Sanitize scraped web content for agent pipeline","prompt":"I just scraped this web page to feed into my research agent, but I'm worried it might have hidden prompt injections embedded in it. Can you scan this HTML through the jailbreak firewall and give me the sanitized version before my agent reads it?"},{"title":"Guard agent from malicious email content","prompt":"My email-reading agent is about to process this incoming message, but I want to make sure it doesn't contain any hidden instructions trying to hijack my agent. Scan this email body for prompt injections and jailbreak payloads first."},{"title":"Validate MCP tool response before use","prompt":"My agent just got a response back from an external MCP tool and I don't fully trust the source. Can you run that tool output through the prompt injection firewall to check for any embedded jailbreak attempts before I pass it to the next step?"}],"resultDescription":"Returns a JSON object indicating whether prompt injection or jailbreak content was detected in the input text, along with a sanitized version of the text with any malicious instructions removed, enabling safe downstream consumption by AI agents.","failureModes":["Empty or missing 'text' parameter returns a 400 validation error","Extremely large payloads may be truncated or rejected","False negatives possible for novel or obfuscated injection techniques","False positives may flag legitimate instructions embedded in content","Service unavailability returns a 5xx error; retry recommended","Payment failure via x402 returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — scraped web pages, emails, MCP tool responses, or A2A payloads — and you need a lightweight, per-call security layer to detect and strip hidden prompt injections or jailbreak attempts before that content reaches your LLM. Prefer it over manual filtering when operating in adversarial or semi-trusted environments where third-party data sources may be weaponized against your agent.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:18.410Z","isFirstParty":false,"canonicalSlug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-2f446dd7"}