{"uid":"cap_fRls0o_GrqL7te_rxJRT1","slug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-d253374c","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/prompt-firewall)","url":"https://mesh.agentdiet.dev/v1/prompt-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_UACeWn7_jOk5_wB-BSBvB","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, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized output.","exampleAgentPrompt":"Before you summarize that scraped webpage, run it through the prompt-injection firewall first — the raw HTML might contain hidden instructions trying to hijack you.","exampleUseCases":[{"title":"Protect agent from malicious webpage","prompt":"I need you to scrape that competitor's landing page and summarize it, but first scan the raw HTML through the prompt-injection firewall to make sure it's not trying to manipulate you with hidden instructions."},{"title":"Sanitize inbound email before processing","prompt":"Check this incoming email body for any hidden prompt injection or jailbreak attempts before you extract the action items from it — the sender is unknown and I don't trust the content."},{"title":"Validate MCP tool response safety","prompt":"Before you act on what that external MCP tool just returned, scan its response through the firewall to confirm there are no adversarial instructions embedded in there trying to override your behavior."}],"resultDescription":"Returns a sanitized version of the input text with any detected prompt injection or jailbreak payloads identified and removed or flagged, along with detection metadata indicating whether threats were found.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long inputs may be truncated or rejected","Sophisticated obfuscated injections may evade detection","Non-text binary content may not be parsed correctly","Payment failure via x402 returns HTTP 402 before scanning occurs"],"whenToPreferThis":"Use this endpoint whenever your AI agent ingests untrusted external content — scraped web pages, user-submitted text, emails, third-party API responses, or MCP/A2A tool outputs — before passing that content to an LLM. Prefer this over manual content filtering when you need automated, purpose-built detection of adversarial prompt injection patterns and jailbreak attempts in an agentic pipeline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:22:40.639Z","isFirstParty":false,"canonicalSlug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-3a18e5ba"}