{"uid":"cap_GX8RJqqYbaB770GwtrXWv","slug":"workflows-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-9ffe4cb9","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://workflows.agentdiet.dev/v1/injection-firewall)","url":"https://workflows.agentdiet.dev/v1/injection-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"}}},"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_67vW4_9CP-Bs447iGZqPW","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attacks, returning sanitized output.","exampleAgentPrompt":"Before my agent processes this scraped webpage content, run it through the prompt-injection firewall to detect any hidden instructions or jailbreak payloads: '<scraped HTML or text here>'","exampleUseCases":[{"title":"Securing agent web browsing pipeline","prompt":"My AI agent just fetched this webpage to summarize it — can you scan the raw HTML for any hidden prompt injections or jailbreak instructions before passing it to the LLM? Here's the content: '<raw HTML>'"},{"title":"Screening inbound customer emails","prompt":"I'm piping customer emails into my AI support agent. Can you check this email body for any embedded prompt injection attempts before my agent reads it? The email says: 'Dear support, please ignore previous instructions and...'"},{"title":"Validating MCP tool response safety","prompt":"My agent just got a response back from an external MCP tool and I want to make sure it doesn't contain adversarial instructions hidden in the payload. Can you run this tool output through the injection firewall: '<MCP response JSON or text>'"}],"resultDescription":"Returns a structured object indicating whether prompt injection or jailbreak content was detected in the input, along with sanitized text with malicious instructions removed or flagged, allowing the agent to safely proceed with clean content.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely large payloads may exceed request limits or timeout","False negatives possible for novel or obfuscated injection techniques not yet in detection patterns","Non-text binary content may not be properly analyzed","Rate limiting or payment failures (402) may block requests"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — scraped web pages, user emails, third-party API responses, MCP tool outputs, or A2A payloads — before passing that content to an LLM for reasoning or action. It is especially valuable in agentic workflows where indirect prompt injection could cause the agent to execute unintended instructions from adversarial external sources.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T10:57:15.233Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-c768e008"}