{"uid":"cap_05gQGW5Auo6xxBmvXvPtk","slug":"cve-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-ecd0430f","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://cve-intel.agentdiet.dev/v1/llm-guard)","url":"https://cve-intel.agentdiet.dev/v1/llm-guard?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_0W-vKw9WtSD1D0iNC7IXz","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"cve-intel.agentdiet.dev","brandSlug":"cve-intel-agentdiet-dev-mpp","brandBaseUrl":"https://cve-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 webpage content, run it through the prompt-injection firewall to check for any hidden jailbreak instructions or adversarial prompts embedded in the text.","exampleUseCases":[{"title":"Protect agent from malicious web content","prompt":"I'm about to feed this scraped HTML from an untrusted site into my AI pipeline — can you first scan it for any hidden prompt injection instructions or jailbreak payloads before we proceed?"},{"title":"Screen inbound emails for adversarial prompts","prompt":"Check this email body for embedded prompt injections or jailbreak attempts before my agent summarizes it — I don't trust the sender and want to make sure there are no hidden instructions trying to hijack the LLM."},{"title":"Sanitize MCP tool response before LLM consumption","prompt":"This MCP tool just returned a response from an external API — can you run it through the prompt-injection firewall and give me the sanitized version before my agent uses it to answer the user's question?"}],"resultDescription":"Returns a structured object indicating whether the input contains prompt injection or jailbreak content, along with sanitized text with adversarial instructions removed or flagged, enabling safe downstream LLM consumption.","failureModes":["Empty or missing 'text' field returns a 400 validation error","Payloads that are extremely large may time out or be truncated","Sophisticated obfuscated injections may evade detection and pass through undetected","Non-text binary content passed as the text field may produce unexpected results","Payment failure (402) if x402 payment header is missing or USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, user-submitted inputs, third-party API responses, MCP tool outputs, or email bodies — and you need to guard against indirect prompt injection attacks before passing that content to an LLM. Ideal for agentic systems that autonomously browse the web, call external tools, or process user-supplied documents where adversarial content could hijack agent behavior.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:31:10.439Z","isFirstParty":false,"canonicalSlug":"cve-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-bbb21450"}