Automatisation WhatsApp avec n8n : assistant client AI instantané

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  "name": "AI Customer-Support Assistant · WhatsApp Ready · Works for Any Business",
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      "parameters": {
        "text": "={{ $json.messages[0].text.body }}",
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          "systemMessage": "=You are [Company Name]’s real-time website assistant for https://www.your-company-url.com.\n\nAVAILABLE TOOLS\n• list_links(url) → { urls:[ … ] }  — returns up to 100 internal links from that page  \n• get_page(url)   → { text:\"…\" }    — returns the visible, tag-free text of the page (JavaScript rendered if needed)\n\nSEARCH STRATEGY\n1. Start with list_links on the root page.  \n2. Pick ≤ 5 links whose URL or anchor text best match the user’s question (producto, pago, envío, servicio, política, etc.).  \n3. For each chosen link call get_page once.  \n4. Read the returned text and look for the answer.  \n5. If the answer is still unknown, you may repeat steps 1-4 one level deeper.  \n6. Stop after two list_links rounds **or** eight get_page calls (whichever comes first).\n\nANSWER RULES\n• Reply in clear and friendly toon **as part of [Company Name]** (use “we”, “our”).  \n• Keep answers concise but complete.  \n• **No Markdown ni símbolos de formato. Nunca uses \\*, **, \\_, \\~, ni [texto](url).**  \n  Write urls like: Descriptive Text ␣URL   Ej.: Combos https://…  \n• Quote the exact wording for facts such as stock status, prices, envíos, métodos de pago, garantías o políticas.  \n• If the information is not on the site, reply exactly:  \n  “I can't find that information on our site right now. Do you want me to put you through to a human agent?”  \n• Stay on-domain; ignore mailto:, tel:, javascript:, or off-site links.\n• Finally, if any of the tools returns a status code 404, then reply:\n\"Non-subscribed user.\"",
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            {
              "name": "url",
              "value": "https://www.your-company-url.com",
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              "value": "your-auth-token (read setup guide)",
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        "toolDescription": "Returns up to 100 unique, fully-qualified INTERNAL links for a given page.\n\nInput  (JSON body the model must supply)\n  {\n    \"url\": \"<absolute https://…>\"\n  }\n\nBehaviour\n  • Crawls only the domain of the input URL.\n  • Converts relative <a href> values to absolute URLs.\n  • Drops empty roots (\"/\"), mailto:, tel:, javascript:, and off-site links.\n  • De-duplicates the list.\n  • Responds with a JSON object:\n\n      {\n        \"urls\": [ \"<link-1>\", \"<link-2>\", … ]\n      }\n\nUse this tool when you need a navigation map of the current page.\nPass one of the returned URLs back into other tools (e.g. get_text) to read its content.\n"
      },
      "typeVersion": 1.1
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          "mode": "list",
          "value": "gpt-4o-mini"
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        "options": {}
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      "credentials": {
        "openAiApi": {
          "id": "jh4eAOIykIxQWUI9",
          "name": "OpenAi account"
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    },
    {
      "id": "7e0e84c8-ad96-44d1-9de9-c639230418fd",
      "name": "WhatsApp Trigger",
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      "webhookId": "857366e8-7b6f-45a7-bbd1-f876002620d7",
      "parameters": {
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          "messages"
        ]
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      "credentials": {
        "whatsAppTriggerApi": {
          "id": "EB6eAVg9ZBZGYsyX",
          "name": "WhatsApp OAuth account"
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    {
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      "name": "cleanAnswer",
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      "parameters": {
        "jsCode": "// cleanAnswer – run once per item\nlet txt = $('AI Agent').first().json.output || '';\n\n// 1. Remove bold / italic / strike markers\ntxt = txt.replace(/[*_~]+/g, '');\n\n// 2. Convert [Texto](https://url) → Texto https://url\ntxt = txt.replace(/\\[([^\\]]+)\\]\\((https?:\\/\\/[^\\s)]+)\\)/g, '$1 $2');\n\n// 3. Collapse 3+ blank lines\ntxt = txt.replace(/\\n{3,}/g, '\\n\\n').trim();\n\nreturn [{ json: { answer: txt } }];\n"
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      "parameters": {
        "url": "https://lemolex.app.n8n.cloud/webhook/get_text",
        "method": "POST",
        "sendBody": true,
        "parametersBody": {
          "values": [
            {
              "name": "url"
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              "name": "auth-token",
              "value": "your-auth-token (read setup guide)",
              "valueProvider": "fieldValue"
            }
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        "toolDescription": "Fetches the fully-rendered **plain text** of a single web.  \n• Input  : { \"url\": \"<absolute https://…>\" }  \n• Auth   : token is sent as HTTP basic-auth.  \n• Query  : url=<encoded url>  \n• Output : { \"text\": \"<visible text of the body>\", \"url\": \"<same url>\" }  \n• The \"text\" field already has **all HTML tags removed** .  \n• Use this tool whenever you need the actual words that appear on the page—product details, prices, stock lines, shipping terms, payment options, company policies, etc.  \n• Do **not** call it on off-site links or mailto:/tel:/javascript: pseudo-links.  \n"
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    {
      "id": "46c1fd08-9b61-4ea9-bee3-9ad8b7e7ce4d",
      "name": "24-hour window check",
      "type": "n8n-nodes-base.code",
      "position": [
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      ],
      "parameters": {
        "jsCode": "// within24h?  – run once per item\n// Meta (WhatsApp) timestamp arrives as seconds since epoch\nconst lastTs = Number($('WhatsApp Trigger').first().json.messages[0].timestamp) * 1000;   // → ms\nconst withinWindow = Date.now() - lastTs < 24 * 60 * 60 * 1000;\n\nreturn [{ json: { withinWindow, answer: $json.answer, userId: $json.userId } }];"
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    {
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      "type": "n8n-nodes-base.if",
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            "caseSensitive": true,
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              "operator": {
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                "operation": "true",
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              "leftValue": "={{ $json.withinWindow }}",
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      "typeVersion": 2.2
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    {
      "id": "e0f6e0b0-d2f8-4be5-85e4-74b351390369",
      "name": "Send Pre-approved Template Message to Reopen the Conversation",
      "type": "n8n-nodes-base.whatsApp",
      "position": [
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        360
      ],
      "parameters": {
        "template": "hello_world|en_US",
        "phoneNumberId": "679436108574898",
        "requestOptions": {},
        "recipientPhoneNumber": "={{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}"
      },
      "credentials": {
        "whatsAppApi": {
          "id": "zNN8ICsFZI5A7frT",
          "name": "WhatsApp account"
        }
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    },
    {
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      "name": "Send AI Agent's Answer",
      "type": "n8n-nodes-base.whatsApp",
      "position": [
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      "parameters": {
        "textBody": "={{ $json.answer }}",
        "operation": "send",
        "phoneNumberId": "679436108574898",
        "requestOptions": {},
        "additionalFields": {},
        "recipientPhoneNumber": "={{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}"
      },
      "credentials": {
        "whatsAppApi": {
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    },
    {
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      "name": "Postgres Users Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
      "position": [
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      ],
      "parameters": {
        "tableName": "message_history",
        "sessionKey": "={{ $json.contacts[0].wa_id }}",
        "sessionIdType": "customKey"
      },
      "credentials": {
        "postgres": {
          "id": "Bk7n11D1jU5zJ802",
          "name": "Postgres account"
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    {
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      "name": "Sticky Note",
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        "content": "# Step by Step Setup Guide\n\n### **The technology that powers this AI Agent—continuously crawling, extracting, and generating answers—incurs real operating costs to stay online.**\n### **That’s why the workflow requires an active membership, priced at only **\\$29 per month**. Comparable AI-support platforms charge **\\$150 – \\$500 each month**, so with this template you either save a large chunk of that expense for your own business or earn the same amount by reselling the chatbot to clients—while paying just \\$29 yourself. *And because the bot pulls fresh information from the site in real time, you never have to “re-train” a model, saving you even more time and money.***\n\n **Activate your membership here:** [https://lemolex.gumroad.com/l/ejsnx](https://lemolex.gumroad.com/l/ejsnx)\n\n### Let's start setting this up step by step:\n*Total hands-on time: ≈ 15 minutes*\n\n1. Activate the tools with the membership generated key: \n- Go to the membership link to get your key.\n- Copy the key (e.g 6F0E4C97-B72A4E69-A11BF6C4-AF123456) and paste it in the body parameters of list_links and get_page (tools):\n*Name: auth-token*\n*Value:  6F0E4C97-B72A4E69-A11BF6C4-AF123456* **(example)**\n\n2. Customize for Your Company:\n- Copy the Root URL of your company's website (Home Page).\n- Open the AI Agent node and inside the `System Message`, change the following values:\n[Company Name] with your company name (e.g [Company Name] -> Facebook)\n[https://www.your-company-url.com] with your company Root URL that you copied before.\nCheck for these 2 values along the entire text.\n- Go back to the tools list_links and get_page and paste the Root URL inside the body parameters, specifically:\n*Name: url*\n*Value: https://www.your-company-url.com **(e.g https://www.facebook.com)**\n\n3. Connect your credentials:\n- Go to the OpenAI Chat Model node and connect your OpenAI credentials.\n- Go to the Postgres Users Memory node and connect your Supabase credentials. A tutorial for this: https://youtu.be/6w5f_jsPYSQ?si=MPdXYUjxv3fghQPj&t=105 (Minute 1:45 to 5:00)\n- Go to the WhatsApp nodes \"WhatsApp Trigger\", \"Send Pre-approved Template Message to Reopen the Conversation\" and \"Send AI Agent's Answer\" to connect your credentials. A tutorial for this: https://youtu.be/ZrhTQle55LQ?si=MO_leooogO9KchCV\n- Go to the \"Send Pre-approved Template Message to Reopen the Conversation\" and select the template message under the \"Template\" parameter.\n***If you don't want to use this feature (not recommended) delete the nodes \"24-hour window check\", \"If\" and \"Send Pre-approved Template Message to Reopen the Conversation\". Then connect the AI Agent node to the \"cleanAnswer\" node.***\n\n\n### **You are ready**"
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        ]
      ]
    },
    "Postgres Users Memory": {
      "ai_memory": [
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            "node": "AI Agent",
            "type": "ai_memory",
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}