{"uid":"cap_q-Tf93Qtqp3EqLmQeSroU","slug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-6f0477cb","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-shield)","url":"https://serp-extract.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"},"limit":{"type":"integer","default":20,"maximum":100,"minimum":1,"description":"Maximum number of items to return per page (1-100)"},"cursor":{"type":"string","description":"Opaque pagination cursor for fetching the next page"}}},"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_aqxMKnquocx6rEY_9AqUS","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 that web page content I just fetched, can you run it through the prompt-injection firewall to check for any hidden adversarial instructions or jailbreak payloads embedded in the text?","exampleUseCases":[{"title":"Screening scraped web content for agent pipelines","prompt":"I scraped this webpage to feed into my agent but I want to make sure there are no hidden prompt injections embedded in it — can you scan the HTML for adversarial instructions before I pass it along?"},{"title":"Validating third-party MCP tool responses","prompt":"My agent just got a response back from an external MCP tool and I'm worried it might contain indirect prompt injection. Can you run the response text through the jailbreak firewall to sanitize it first?"},{"title":"Checking inbound emails for prompt hijacking","prompt":"This email is going to be summarized by my AI assistant — can you screen the email body for any hidden instructions or jailbreak attempts before the assistant reads it?"}],"resultDescription":"Returns a structured object indicating whether prompt injection or jailbreak payloads were detected in the submitted text, along with a sanitized version of the input safe for downstream LLM or agent consumption.","failureModes":["Missing required 'text' parameter returns an error","Empty string input rejected due to minLength:1 constraint","Very large payloads may time out or be truncated","Highly obfuscated injections using encoding tricks may evade detection","Non-UTF-8 or binary content may cause parse errors"],"whenToPreferThis":"Choose this endpoint when your AI agent pipeline ingests content from untrusted external sources — scraped web pages, third-party API responses, MCP tool outputs, user emails, or A2A payloads — and you need to sanitize that content before passing it to an LLM. It is specifically designed for agentic architectures where indirect prompt injection is a real attack vector, making it more suitable than generic content filters that are not tuned for adversarial LLM prompt patterns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:30.708Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-a2a-indirect-prompt-injection-jailbreak-18902259"}