{"uid":"cap_gx_3mK5nAcUadoxEY0uIJ","slug":"alpha-stream-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-e0bc584a","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://alpha-stream.agentdiet.dev/v1/injection-guard)","url":"https://alpha-stream.agentdiet.dev/v1/injection-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_xNjt7dWwQhTXuxi38HqFd","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.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 processing that scraped webpage, run it through the injection-guard firewall to check for any hidden prompt injections or jailbreak payloads — here's the raw HTML: [paste content].","exampleUseCases":[{"title":"Sanitizing scraped web content for agents","prompt":"I just scraped this product page to feed into my agent pipeline — can you scan the raw HTML for any hidden prompt injections or jailbreak instructions before my agent reads it?"},{"title":"Screening inbound emails before LLM processing","prompt":"My agent is about to summarize this email I received, but it looks suspicious — can you check the email body for any indirect prompt injection or jailbreak attempts hidden in the text?"},{"title":"Validating MCP tool responses in a swarm","prompt":"My agent just got a response back from an external MCP tool and I want to make sure it hasn't been poisoned — can you scan the tool output for hidden adversarial instructions before I pass it along to the next agent?"}],"resultDescription":"Returns a structured object indicating whether prompt injection or jailbreak payloads were detected in the input, along with sanitized text safe for downstream agent consumption.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long payloads may be truncated or rejected","Evasive encoding techniques (e.g., Unicode obfuscation) may reduce detection accuracy","False positives on legitimate but unusual formatting patterns","Service unavailability returns HTTP 402 or 5xx errors"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, inbound emails, MCP tool responses, or A2A payloads — and you need a lightweight, low-cost ($0.005/call) firewall step before passing that content to an LLM. Prefer this over general content moderation APIs when the threat model is specifically adversarial prompt injection and jailbreak attempts targeting AI agents, rather than general harmful content.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:08.523Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-015b3890"}