{"uid":"cap_hiNjoKkNDzusPF7cEQFme","slug":"domain-osint-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-d28cd535","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://domain-osint.agentdiet.dev/v1/guard)","url":"https://domain-osint.agentdiet.dev/v1/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_3TFcetJNHNFL6chIq1Bup","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"domain-osint.agentdiet.dev","brandSlug":"domain-osint-agentdiet-dev-mpp","brandBaseUrl":"https://domain-osint.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attempts, returning sanitized output.","exampleAgentPrompt":"Before you process this web page content I just scraped, run it through the prompt injection firewall to check for hidden jailbreak instructions and give me the sanitized version: [paste raw HTML or text here].","exampleUseCases":[{"title":"Sanitize scraped web content for agent","prompt":"I need you to scan this raw HTML I scraped from an untrusted website before feeding it to my research agent — check it for any hidden prompt injection or jailbreak payloads and give me the clean version."},{"title":"Validate incoming email before processing","prompt":"Before my email-processing agent replies to this message, run the email body through the prompt injection firewall to make sure there are no embedded instructions trying to manipulate it."},{"title":"Guard MCP tool response from hijacking","prompt":"My agent just got a response back from an MCP tool I don't fully trust — can you scan that response text for hidden prompt injections before I let my agent act on it?"}],"resultDescription":"Returns a JSON object containing the scan result for the submitted text, including whether prompt injection or jailbreak content was detected, and a sanitized version of the text safe for agent consumption.","failureModes":["Missing required 'text' parameter returns a 400 error","Empty string input rejected due to minLength:1 constraint","Very large payloads may time out or be truncated","Payment required (HTTP 402) if x402 micropayment header is not included","False negatives possible — sophisticated obfuscated injections may not be detected","Service unavailable (503) if upstream guard model is down"],"whenToPreferThis":"Choose this endpoint when your AI agent needs to safely process untrusted external content — web pages, emails, tool outputs, or A2A/MCP responses — before acting on them. It is specifically designed for the agentic pipeline security use case (indirect prompt injection), not general-purpose content moderation. Prefer this over generic moderation APIs when the threat model is agent hijacking via embedded instructions in retrieved content.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:38:30.342Z","isFirstParty":false,"canonicalSlug":"domain-osint-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-d28cd535"}