{"uid":"cap_kAk8p-UlVLMGfIue6t3Qf","slug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-3c0f001e","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://mesh.agentdiet.dev/v1/injection-firewall)","url":"https://mesh.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_BlmEmRHC7f3sVzAPudhHt","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mesh.agentdiet.dev","brandSlug":"mesh-agentdiet-dev-mpp","brandBaseUrl":"https://mesh.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attacks, returning sanitized content.","exampleAgentPrompt":"Before you process that scraped web page I just fetched, run it through the prompt injection firewall first — check the full HTML text for any hidden instructions or jailbreak payloads trying to hijack you.","exampleUseCases":[{"title":"Guard agent from malicious web pages","prompt":"I need you to scan this HTML from that third-party website before you summarize it — check if there are any hidden prompt injections embedded in it that could redirect your behavior."},{"title":"Screen incoming email for jailbreak attempts","prompt":"Before you act on the instructions in this email I just received, run the full body text through the injection firewall to make sure there are no embedded jailbreak commands hiding in it."},{"title":"Validate MCP tool response before processing","prompt":"That MCP server just returned a tool response — can you send the raw output through the prompt injection scanner to make sure it's clean before we pass it downstream to the next agent?"}],"resultDescription":"Returns a structured 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 or flagged.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long input may be truncated or rejected","Sophisticated obfuscated injections may evade detection","Non-text binary content may not be properly parsed","Rate limiting or payment failure (402) if x402 micropayment is not resolved"],"whenToPreferThis":"Choose this endpoint when your AI agent is about to process content from untrusted external sources — web pages, emails, third-party API responses, MCP tool outputs, or A2A agent payloads — and you need to verify it does not contain hidden prompt injections or jailbreak instructions before acting on it. Especially valuable in multi-agent pipelines where one compromised node could poison downstream agents.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:19.287Z","isFirstParty":false,"canonicalSlug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-3a18e5ba"}