{"uid":"cap_dCz07XBY3Rho_hbxx6PQA","slug":"token-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-cca5f429","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/prompt-shield)","url":"https://token-intel.agentdiet.dev/v1/prompt-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_-ZD-oTtGpODVdpD19tn25","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 injections and jailbreak attempts, returning sanitized output.","exampleAgentPrompt":"Before you summarize that scraped web page, run the raw HTML through the prompt-shield firewall to check for any hidden prompt injections or jailbreak instructions embedded in it.","exampleUseCases":[{"title":"Sanitize scraped web content for agent pipeline","prompt":"I'm about to feed this scraped webpage text into my summarizer agent — can you first scan it through the prompt-injection firewall to make sure there are no hidden instructions trying to hijack the agent?"},{"title":"Validate MCP tool response before acting","prompt":"My agent just got a response back from an external MCP tool. Before it acts on the result, can you run that response text through the prompt-shield scanner to check for any embedded jailbreak or injection payloads?"},{"title":"Screen inbound emails for prompt injection attacks","prompt":"I'm building an email-processing agent and I want you to screen this incoming email body for any hidden prompt injection attempts before the agent reads and acts on it."}],"resultDescription":"Returns a structured object indicating whether the input text contains hidden prompt injection or jailbreak payloads, along with a sanitized version of the text safe for downstream agent consumption.","failureModes":["Empty or missing 'text' parameter returns a validation error","Extremely long inputs may exceed size limits or time out","False negatives: sophisticated obfuscated injections may not be detected","False positives: benign text with instruction-like phrasing may be flagged","Payment failure (HTTP 402) if x402 USDC funds are insufficient","Service unavailability returns 5xx error with no sanitized output"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — such as scraped web pages, emails, MCP tool responses, or A2A payloads — and you need a dedicated firewall layer to detect and neutralize indirect prompt injection or jailbreak attempts before that content reaches your LLM. It is especially appropriate for agentic workflows where acting on a compromised payload could cause irreversible side effects. Prefer it over generic content filters when you need prompt-injection-specific detection tuned to LLM attack vectors.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:35.722Z","isFirstParty":false,"canonicalSlug":"token-intel-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-bee41bd8"}