{"uid":"cap_gQtgbAEPWkumABjuY6UWi","slug":"token-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-fbf98898","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://token-intel.agentdiet.dev/v1/system-prompt-guard)","url":"https://token-intel.agentdiet.dev/v1/system-prompt-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_LQhpVnU7ktbWlrKWfimrs","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"token-intel.agentdiet.dev","brandSlug":"token-intel-agentdiet-dev-mpp","brandBaseUrl":"https://token-intel.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Scans untrusted text, HTML, emails, MCP responses, or A2A payloads for hidden prompt-injection and jailbreak attacks, returning sanitized output.","exampleAgentPrompt":"Before you process this scraped webpage content, run it through the prompt-injection firewall to check for any hidden jailbreak or prompt-injection payloads and give me the sanitized version: [paste raw HTML or text here].","exampleUseCases":[{"title":"Safe web scraping for agent pipelines","prompt":"I'm about to feed this scraped webpage text into my AI pipeline — can you scan it for any hidden prompt injections or jailbreak instructions first and give me the clean version?"},{"title":"Email body security check","prompt":"Before my agent processes this incoming email, check the full body text for any indirect prompt-injection attacks or adversarial instructions hidden in it."},{"title":"MCP tool response sanitization","prompt":"My agent just got a response back from an external MCP tool — can you run it through the prompt-injection firewall to make sure there are no hidden hijack instructions before I pass it along?"}],"resultDescription":"Returns a JSON object containing the scan result for the submitted text, indicating whether prompt-injection or jailbreak content was detected and providing a sanitized version of the input text safe for downstream LLM consumption.","failureModes":["Missing required 'text' parameter returns a 400 or validation error","Empty string input rejected due to minLength:1 constraint","Very large payloads may time out or be truncated","Payment failure via x402 results in 402 response blocking the scan","False negatives: sophisticated obfuscated injections may not be detected","False positives: legitimate instructional text flagged as injection"],"whenToPreferThis":"Choose this endpoint when your AI agent is about to process content from untrusted external sources — scraped web pages, emails, third-party API responses, MCP tool outputs, or A2A agent payloads — and you need a pre-processing security layer to detect and strip hidden prompt-injection or jailbreak instructions before they reach your LLM. Prefer this over manual filtering when you need automated, per-call scanning with sanitized output returned directly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:02.404Z","isFirstParty":false,"canonicalSlug":"token-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-bee41bd8"}