{"uid":"cap_9HNQhD5kmMCO5aAkutRxc","slug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-6ab98818","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/llm-guard)","url":"https://shopify-intel.agentdiet.dev/v1/llm-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_u93eXJ-inADKTWFko9USL","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 that scraped web page, run it through the prompt-injection firewall to check for any hidden jailbreak instructions embedded in the HTML and give me back the sanitized version.","exampleUseCases":[{"title":"Guarding agent from malicious web pages","prompt":"I'm about to feed this webpage's content into my AI pipeline — can you scan it for any hidden prompt injection or jailbreak instructions first and return the sanitized text?"},{"title":"Filtering untrusted email before LLM processing","prompt":"Before my agent reads this incoming email to extract action items, can you check it for embedded jailbreak payloads or indirect prompt injections and clean it up?"},{"title":"Sanitizing MCP tool response before acting on it","prompt":"My agent just got a response back from an external MCP tool — can you run it through the prompt-injection firewall to make sure there are no adversarial instructions hidden in the output before I let the agent act on it?"}],"resultDescription":"Returns a JSON object containing the scan result, including whether a prompt injection or jailbreak attempt was detected and a sanitized version of the input text with any adversarial content removed or neutralized.","failureModes":["Empty or missing 'text' parameter returns a 400 validation error","Very large payloads may time out or be truncated","Sophisticated obfuscated injections may evade detection (false negatives)","Non-text binary content may not be properly parsed","Payment failure (402) if x402 USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — such as scraped web pages, user-submitted emails, external API responses, or MCP/A2A tool outputs — before passing that content to an LLM, to prevent indirect prompt injection and jailbreak attacks from hijacking agent behavior.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:14.218Z","isFirstParty":false,"canonicalSlug":"shopify-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-2f446dd7"}