{"product_id":"n8n-workflow-batch-structured-ai-webhook-with-json-schema","title":"n8n Workflow: Batch Structured AI Webhook with JSON Schema","description":"\u003ch3\u003eBatch Structured AI Webhook for n8n (JSON Schema + Ordered Results)\u003c\/h3\u003e\n\u003cp\u003eGive your AI coding agent a single authenticated webhook that accepts a batch of prompts and JSON Schemas—then get back ordered, structured outputs from the first 50 calls processed in parallel.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003eReceives batched requests:\u003c\/b\u003e A \u003cb\u003eWebhook\u003c\/b\u003e accepts a POST request with an \u003ccode\u003eX-API-Key\u003c\/code\u003e header and a \u003ccode\u003ecalls\u003c\/code\u003e array. Each call includes \u003ccode\u003esystemPrompt\u003c\/code\u003e, \u003ccode\u003euserMessage\u003c\/code\u003e, a JSON-encoded \u003ccode\u003ejsonSchema\u003c\/code\u003e string, and an \u003ccode\u003eaiMode\u003c\/code\u003e of \u003ccode\u003esmall\u003c\/code\u003e or \u003ccode\u003ebig\u003c\/code\u003e. Use one mode per request.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eChecks authentication:\u003c\/b\u003e The workflow looks up the token in the \u003cb\u003eusers\u003c\/b\u003e Data Table. Unknown tokens return \u003cb\u003eHTTP 401\u003c\/b\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eLogs usage:\u003c\/b\u003e An \u003cb\u003eInsert log\u003c\/b\u003e stores the user’s email and the full submitted \u003cb\u003ecalls\u003c\/b\u003e payload (prompts, schemas, and modes).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eLimits and parallelizes:\u003c\/b\u003e After \u003cb\u003ePrepare Calls\u003c\/b\u003e and \u003cb\u003eSplit Calls\u003c\/b\u003e, it \u003cb\u003eLimit(s) to 50\u003c\/b\u003e items—processing the first 50 in parallel and silently dropping extras. If you need more, split jobs and verify result counts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eRoutes models + enforces schema:\u003c\/b\u003e The \u003cb\u003eModel Selector\u003c\/b\u003e routes \u003ccode\u003esmall\u003c\/code\u003e to \u003cb\u003eGPT 6 Luna\u003c\/b\u003e and \u003ccode\u003ebig\u003c\/code\u003e to \u003cb\u003eGemini 3.8 Flash\u003c\/b\u003e. A \u003cb\u003eStructured Output Parser\u003c\/b\u003e applies each call’s JSON schema.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eReturns ordered results:\u003c\/b\u003e \u003cb\u003eRespond to Webhook\u003c\/b\u003e returns \u003ccode\u003e{query, output}\u003c\/code\u003e entries—one per processed call—preserving the input order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRunning AI-assisted code generation or refactors where every response must match a strict JSON Schema.\u003c\/li\u003e\n  \u003cli\u003eSaaS operators batch-validating structured outputs (e.g., extracted fields, tool-ready payloads) with traceable logging.\u003c\/li\u003e\n  \u003cli\u003eAutomation engineers orchestrating high-throughput LLM batches with a single webhook endpoint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003eNodes \/ logic:\u003c\/b\u003e if, set, no op, limit, webhook, split out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eAuthentication:\u003c\/b\u003e \u003ccode\u003eX-API-Key\u003c\/code\u003e validated against \u003cb\u003eusers\u003c\/b\u003e Data Table\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eBatch behavior:\u003c\/b\u003e processes first 50 calls; extras are dropped\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eModel routing:\u003c\/b\u003e \u003ccode\u003esmall\u003c\/code\u003e → GPT 6 Luna, \u003ccode\u003ebig\u003c\/code\u003e → Gemini 3.8 Flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eStructured parsing:\u003c\/b\u003e schema-driven output per call\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":46146501181619,"sku":"N8N-20202","price":58.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/Nm5ZMXrSLNa0mz4sDNmD-_C4krfc7P.png?v=1790847260","url":"https:\/\/buyflowscripts.com\/products\/n8n-workflow-batch-structured-ai-webhook-with-json-schema","provider":"N8N Commerce","version":"1.0","type":"link"}