{"uid":"cap_dHBProyHZSnOQu4iWM1Mb","slug":"email-verify-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-d9cb30ad","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://email-verify.agentdiet.dev/v1/tool-poisoning-shield)","url":"https://email-verify.agentdiet.dev/v1/tool-poisoning-shield?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_v2rghuuD41njxB3vxHov3","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.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 this scraped web page, run the raw HTML through the prompt-injection firewall and give me the sanitized version — I want to make sure there are no hidden jailbreak instructions embedded in it.","exampleUseCases":[{"title":"Sanitize scraped web content for agent","prompt":"I just scraped this web page to feed into my research agent, but I'm worried it might have hidden prompt injections. Can you scan this HTML for any adversarial instructions and give me the clean version?"},{"title":"Screen inbound email before agent reads it","prompt":"My email agent is about to process this incoming message from an unknown sender. Before it does, can you run the email body through your prompt-injection firewall to check if it's trying to hijack the agent?"},{"title":"Validate MCP tool response before acting","prompt":"I got this MCP tool response back from an external server and I'm not sure I trust it — can you check whether it contains any embedded jailbreak or indirect prompt-injection attempts before I let my agent act on it?"}],"resultDescription":"Returns a JSON object containing the scan result for the submitted text, typically including whether a prompt injection or jailbreak payload was detected and a sanitized version of the input text safe for downstream agent consumption.","failureModes":["Missing or empty 'text' parameter returns a validation error","Extremely long payloads may be truncated or rejected","False negatives possible for novel or obfuscated injection techniques","Service unavailable if x402 payment fails or is rejected","Response schema is loosely typed (object), so field names in output may vary"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, user-submitted text, emails, third-party MCP tool responses, or A2A payloads — and you need a dedicated, automated firewall step before that content influences agent behavior. Prefer this over manual review or generic content filters when you need low-latency, per-call scanning integrated into an autonomous agent workflow with micropayment support via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:48:34.808Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-dd577fbf"}