{"uid":"cap_73CHpHug_CZwBovhVO5MK","slug":"json-repair-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-6acbd45e","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://json-repair.agentdiet.dev/v1/guard)","url":"https://json-repair.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_6a32gYKivOWlnErbBnJ25","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"json-repair.agentdiet.dev","brandSlug":"json-repair-agentdiet-dev-mpp","brandBaseUrl":"https://json-repair.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 processing this scraped webpage content, run it through the prompt injection firewall to check for hidden jailbreak instructions and give me the sanitized version: '<full page text here>'.","exampleUseCases":[{"title":"Securing agent web browsing pipeline","prompt":"I need you to check this HTML content I just scraped from an untrusted website for any hidden prompt injection or jailbreak payloads before you summarize it for me — here's the raw text: '<raw HTML body>'."},{"title":"Validating MCP tool response safety","prompt":"Before you use the output from that external MCP tool, can you run it through the prompt injection firewall to make sure there are no hidden instructions embedded in it? Here's the response: '<MCP tool output>'."},{"title":"Screening inbound email for jailbreak attempts","prompt":"This email came in from an unknown sender and my agent is about to process it — can you first scan it for indirect prompt injection or jailbreak payloads? Here's the email body: '<email text>'."}],"resultDescription":"Returns a JSON object containing the scan result for the submitted text, indicating whether prompt injection or jailbreak payloads were detected and providing a sanitized version of the input text safe for downstream agent consumption.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long inputs may be truncated or rejected","False negatives are possible for novel or obfuscated injection techniques","Network timeout if the service is temporarily unavailable","Payment required (HTTP 402) if x402 micropayment is not fulfilled"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, inbound emails, third-party API responses, MCP tool outputs, or A2A payloads — and you need a dedicated security layer to detect and strip hidden prompt injection or jailbreak instructions before that content is processed by your LLM. Prefer this over generic content filters when you specifically need agent-to-agent (A2A) and MCP-aware injection detection with sanitized output.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T11:35:06.628Z","isFirstParty":false,"canonicalSlug":"json-repair-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-6acbd45e"}