{"product_id":"belgian-secondhand-search-chatbot-in-n8n-koopje-ai-openrouter","title":"Belgian Secondhand Search Chatbot in n8n (Koopje.ai + OpenRouter)","description":"\u003ch3\u003eFind Belgian secondhand deals instantly with a chatbot in n8n (Koopje.ai + OpenRouter)\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow powers a Dutch-language search chatbot that looks up Belgian secondhand listings and auction lots via \u003cstrong\u003ekoopje.ai\u003c\/strong\u003e, using an \u003cstrong\u003eOpenRouter\u003c\/strong\u003e chat model to understand your request and refine search queries—then replies with matching results and direct links.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceives your message\u003c\/strong\u003e via the n8n \u003cem\u003eChat trigger\u003c\/em\u003e (in the workflow’s Dutch conversation flow).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnderstands your intent\u003c\/strong\u003e using an \u003cstrong\u003eOpenRouter Chat Model\u003c\/strong\u003e with a Dutch system prompt to turn your request into a focused query (e.g., item type, desired budget, optional location).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSearches Belgian listings\u003c\/strong\u003e through the \u003cstrong\u003ekoopje.ai \u003ccode\u003e\/v1\/search\u003c\/code\u003e\u003c\/strong\u003e endpoint and returns results including title, price (or auction house), location, source, and the listing URL.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFetches full listing details only when needed\u003c\/strong\u003e by calling \u003cstrong\u003ekoopje.ai \u003ccode\u003e\/v1\/contents\u003c\/code\u003e\u003c\/strong\u003e for up to five selected URLs to retrieve the full text\/details.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains context\u003c\/strong\u003e across messages using conversation memory, so follow-up questions can refine results.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResponds in Dutch\u003c\/strong\u003e with per-result price, place, and the original link.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e“Find me a \u003cem\u003egaming laptop\u003c\/em\u003e under €300 in Belgium” — get curated matches with direct links.\u003c\/li\u003e\n  \u003cli\u003eCompare secondhand options across sources like 2dehands.be, markplaats.nl, vavato.com, troc.com, troostwijkauctions.com, zoekertjes.be, auctelia.com, vlavem.com, and more (via koopje.ai).\u003c\/li\u003e\n  \u003cli\u003eAsk a follow-up such as “Only show listings in Antwerp” or “What details are written for the top results?”—the chatbot can fetch extra content for selected URLs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8nn8n-nodes-langchainchat trigger\u003c\/strong\u003e (chat entry)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8nn8n-nodes-langchainlm chat open router\u003c\/strong\u003e (OpenRouter model)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHTTP Request Tool\u003c\/strong\u003e (calls koopje.ai with your Bearer API key using \u003ccode\u003e\/v1\/search\u003c\/code\u003e and optional \u003ccode\u003e\/v1\/contents\u003c\/code\u003e)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8nn8n-nodes-langchainmemory buffer window\u003c\/strong\u003e (conversation memory)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSetup summary:\u003c\/strong\u003e create a \u003cstrong\u003ekoopje.ai\u003c\/strong\u003e account, generate an API key, add it to n8n as Bearer Auth, select an OpenRouter Chat Model you have access to, then open the n8n Chat interface and start searching for deals.\u003c\/p\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":45985516126387,"sku":"N8N-19397","price":61.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/LG_aMuTETHicC0R3c6E42_xiToxCoX.png?v=1788945190","url":"https:\/\/buyflowscripts.com\/products\/belgian-secondhand-search-chatbot-in-n8n-koopje-ai-openrouter","provider":"N8N Commerce","version":"1.0","type":"link"}