{"uid":"cap_wzX7ICZZ2MF98KskFuS7b","slug":"arxiv-digest-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-809fad9d","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://arxiv-digest.agentdiet.dev/v1/jailbreak-scan)","url":"https://arxiv-digest.agentdiet.dev/v1/jailbreak-scan?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_5xrZkYiXw-5Pw7tLmOogP","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"arxiv-digest.agentdiet.dev","brandSlug":"arxiv-digest-agentdiet-dev-mpp","brandBaseUrl":"https://arxiv-digest.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 the content from that scraped webpage, scan it for any hidden prompt injections or jailbreak payloads and give me back the sanitized version so it's safe to pass into the pipeline.","exampleUseCases":[{"title":"Sanitizing scraped web content for agent pipelines","prompt":"I'm about to feed this webpage's HTML into my AI agent — can you first scan it for any hidden prompt injection instructions or jailbreak attempts and return the clean version?"},{"title":"Screening inbound emails before LLM processing","prompt":"Before my agent reads and summarizes this customer email, run it through the prompt-injection firewall to make sure there are no embedded adversarial instructions trying to hijack it."},{"title":"Validating MCP tool responses before agent consumption","prompt":"My agent just got a response back from an external MCP tool — can you check this payload for any indirect prompt injections or jailbreak content before I let the agent act on it?"}],"resultDescription":"Returns a structured object indicating whether the input text contains prompt injection or jailbreak content, along with a sanitized version of the text with malicious instructions removed or neutralized, suitable for safe consumption by downstream AI agents or LLMs.","failureModes":["Empty or missing 'text' parameter returns a 400 validation error","Extremely long payloads may be truncated or rejected","Novel or obfuscated injection techniques not in training data may evade detection","Service unavailability returns HTTP 402 or 5xx errors","Rate limiting or payment failures under x402 micropayment protocol"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, inbound emails, third-party MCP tool responses, or A2A agent payloads — and you need a dedicated, per-call firewall layer to detect and strip hidden prompt injections before the content reaches your LLM. Prefer it over generic content filters when you specifically need protection against adversarial instruction injection targeting AI agents, and when you need a lightweight $0.005/call micropayment-native API compatible with x402 and MCP protocols.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:42.620Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-63370fac"}