{"uid":"cap_SiS7pU76k_MvTv4W10rTY","slug":"github-audit-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-0d76783c","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://github-audit.agentdiet.dev/v1/guard)","url":"https://github-audit.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_DcFz81ucT2eL4pX3R1E8x","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"github-audit.agentdiet.dev","brandSlug":"github-audit-agentdiet-dev-mpp","brandBaseUrl":"https://github-audit.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt injection and jailbreak attacks, returning sanitized text.","exampleAgentPrompt":"Before you process that web page I just fetched, run it through the prompt injection firewall to check for any hidden jailbreak instructions or adversarial text embedded in it.","exampleUseCases":[{"title":"Sanitize scraped web content for agent","prompt":"I'm about to feed this scraped article into my agent pipeline — can you first scan it for any hidden prompt injection attacks or jailbreak payloads and give me the sanitized version?"},{"title":"Guard agent inbox from email hijacking","prompt":"Before my agent reads and acts on this incoming email, check it for any indirect prompt injection or jailbreak instructions that might be hiding in the body."},{"title":"Validate MCP tool response before use","prompt":"My agent just got back a response from an external MCP tool — can you run it through the prompt injection firewall to make sure there are no adversarial instructions embedded in it before I pass it downstream?"}],"resultDescription":"Returns a JSON object containing the scan result for the submitted text, including detection of any hidden prompt injection or jailbreak payloads and a sanitized version of the input text safe for downstream LLM or agent processing.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long payloads may be truncated or rejected","False negatives may occur for novel or obfuscated injection techniques","Payment failure (HTTP 402) if USDC balance is insufficient for the $0.005 per-call fee","Service unavailability returns a 5xx error"],"whenToPreferThis":"Choose this endpoint when your AI agent needs to process untrusted external content — such as scraped web pages, incoming emails, MCP tool outputs, or A2A payloads — before feeding it into an LLM pipeline, and you need a dedicated firewall that detects and strips adversarial prompt injections and jailbreak attempts. Prefer this over general-purpose content filters when the specific threat model is indirect prompt injection targeting AI agent behavior.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:20:49.049Z","isFirstParty":false,"canonicalSlug":"github-audit-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-0d76783c"}