{"uid":"cap_9z8lqf0XRRLjV2cmtNcxa","slug":"alpha-stream-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-072326c0","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://alpha-stream.agentdiet.dev/v1/prompt-shield)","url":"https://alpha-stream.agentdiet.dev/v1/prompt-shield?utm_source=zero.xyz","method":"POST","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_Rot_yvf56CuugJ0jOXjDD","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, web pages, emails, MCP responses, or A2A payloads for hidden prompt injections and jailbreak attempts, returning sanitized text.","exampleAgentPrompt":"Before you process that scraped web page, run it through the prompt-injection firewall and give me only the sanitized version — I want to make sure there are no hidden instructions trying to hijack you.","exampleUseCases":[{"title":"Sanitizing scraped web content for agents","prompt":"I just fetched the HTML from that third-party site — can you scan it for hidden prompt injections and return the clean text before you summarize it?"},{"title":"Screening inbound emails for jailbreak payloads","prompt":"Before my agent reads and replies to this customer email, check it for any embedded prompt injection or jailbreak instructions and give me the sanitized version."},{"title":"Validating MCP tool output before pipeline use","prompt":"This MCP tool just returned a response — run it through the prompt-injection firewall to make sure there are no adversarial instructions hidden inside before we pass it downstream."}],"resultDescription":"Returns a JSON object containing the sanitized version of the input text with any detected prompt injection or jailbreak payloads neutralized, along with detection signals indicating whether malicious content was found.","failureModes":["Empty or missing 'text' field returns a validation error","Extremely large payloads may exceed size limits or increase latency","Obfuscated or novel injection techniques may evade detection","Non-text binary content may not be parsed correctly","Payment failure via x402 if insufficient USDC balance"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — scraped web pages, emails, A2A messages, or MCP tool responses — and you need a dedicated firewall layer to detect and neutralize hidden prompt injections or jailbreak payloads before they reach your LLM. Prefer it over generic content filters when you specifically need AI-aware adversarial prompt detection rather than standard content moderation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:40:18.030Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-015b3890"}