{"uid":"cap_GnKNvK-LUTGCEZyQk_uH5","slug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-b5458ecc","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/indirect-injection-guard)","url":"https://mesh.agentdiet.dev/v1/indirect-injection-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_9flNqi_7n-5QTdjKzGU3R","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 process that scraped webpage, can you run it through the prompt injection firewall to make sure there are no hidden instructions or jailbreak payloads embedded in it?","exampleUseCases":[{"title":"Safe web scraping for agent pipelines","prompt":"I just scraped this product page HTML to feed into my agent — can you scan it for any hidden prompt injections or adversarial instructions before I pass it along?"},{"title":"Screening inbound email before agent processing","prompt":"This email came in from an unknown sender and my agent is going to summarize it — please check the full email body for any embedded jailbreak attempts or indirect prompt injections first."},{"title":"Validating MCP tool response before use","prompt":"My agent just got back a response from an external MCP tool — can you run it through the injection firewall to make sure it doesn't contain any hidden instructions trying to hijack the agent?"}],"resultDescription":"Returns a structured object indicating whether prompt injection or jailbreak content was detected, along with sanitized version of the input text with malicious payloads removed or flagged.","failureModes":["Empty or missing 'text' parameter returns a 400 validation error","Very large payloads may exceed input limits or increase latency","Sophisticated obfuscated injections may evade detection (false negatives)","Payment failure via x402 results in 402 response blocking the scan","Non-text binary content may produce unreliable results"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline processes content from untrusted external sources — scraped web pages, inbound emails, third-party API responses, MCP tool outputs, or user-submitted text — and you need to guard against indirect prompt injection or jailbreak attacks before that content influences agent behavior. It is especially valuable in agentic workflows where LLM outputs feed directly into subsequent actions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:18.219Z","isFirstParty":false,"canonicalSlug":"mesh-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-firewall-3a18e5ba"}