{"uid":"cap_mwFg6bfB1viI3UpzesgGh","slug":"whale-momentum-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-f9721dfc","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://whale-momentum.agentdiet.dev/v1/prompt-injection-shield)","url":"https://whale-momentum.agentdiet.dev/v1/prompt-injection-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_mSjug4Hkd_TiJmRfg5rkU","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"whale-momentum.agentdiet.dev","brandSlug":"whale-momentum-agentdiet-dev-mpp","brandBaseUrl":"https://whale-momentum.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 that scraped web page, run it through the prompt-injection firewall to check for any hidden adversarial instructions or jailbreak payloads embedded in the HTML, then give me the sanitized version.","exampleUseCases":[{"title":"Shield agent from malicious web content","prompt":"I'm about to feed this scraped article into my agent pipeline — can you first scan it for hidden prompt injections or jailbreak instructions embedded in the text so we only pass the clean version downstream?"},{"title":"Validate MCP tool response before use","prompt":"My agent just got a response back from an external MCP tool — before I let it act on that output, run it through the prompt-injection firewall to make sure there's nothing adversarial hidden in there."},{"title":"Screen inbound emails for LLM attacks","prompt":"I have this email that was forwarded to my AI assistant — can you check it for any indirect prompt injection attempts or jailbreak payloads before my agent reads and responds to it?"}],"resultDescription":"Returns a JSON object containing the scan result, including whether a prompt injection or jailbreak payload was detected, and the sanitized version of the input text with adversarial instructions removed or flagged.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely large payloads may time out or be truncated","Obfuscated injections using novel encoding techniques may evade detection","Non-UTF8 or binary content may cause parsing errors","HTTP 402 payment required if funds not provided via x402 protocol"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — web pages, emails, tool outputs, or third-party A2A/MCP payloads — before passing that content to an LLM for reasoning or action. It is specifically designed for agent-to-agent and MCP threat surfaces, unlike generic content moderation APIs that focus on human-generated harmful content rather than adversarial LLM manipulation techniques.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:45.730Z","isFirstParty":false,"canonicalSlug":"whale-momentum-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-87ce958b"}