{"uid":"cap__nauYqLCHsk8IJ4cmN67V","slug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-2842634f","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://serp-extract.agentdiet.dev/v1/prompt-guard)","url":"https://serp-extract.agentdiet.dev/v1/prompt-guard?utm_source=zero.xyz","method":"POST","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_h2HCo9-AUsLaTmAoH9We9","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.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 this scraped web page content, run it through the prompt-injection firewall to detect and strip any hidden adversarial instructions or jailbreak payloads embedded in it.","exampleUseCases":[{"title":"Guarding agent from poisoned search results","prompt":"I just retrieved some web search results to feed into my agent pipeline — can you scan this HTML content for any hidden prompt injections or jailbreak attempts before my agent reads it?"},{"title":"Screening inbound emails for LLM hijacking","prompt":"I'm building an email-processing agent and I need you to check this incoming email body for embedded prompt injection attacks or attempts to override my agent's instructions before it processes the message."},{"title":"Validating MCP tool response safety","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 hidden inside before I pass it to the next step?"}],"resultDescription":"Returns a structured object indicating whether prompt injection or jailbreak content was detected, along with sanitized text with malicious payloads removed or flagged, enabling safe downstream consumption by LLMs or agent pipelines.","failureModes":["Empty or missing 'text' field returns validation error","Extremely large payloads may exceed processing limits","Novel or obfuscated injection techniques may evade detection","Non-text binary content may cause parsing errors","Payment failure (HTTP 402) if x402 micropayment is not settled"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests untrusted external content — scraped web pages, user emails, tool responses, or third-party A2A payloads — and you need a dedicated firewall layer to detect and neutralize indirect prompt injection and jailbreak attempts before that content reaches your LLM. Particularly valuable in autonomous agent loops where adversarial content from the web could hijack agent behavior.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:31:42.606Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-18902259"}