Free GPT-4 via Copilot API

The workflow JSON

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{
  "name": "\ud83e\udd16 Ejemplo: Copilot API (GPT-4 Gratis)",
  "nodes": [
    {
      "parameters": {},
      "id": "manual-trigger",
      "name": "Inicio Manual",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://copilot-api:8000/v1/chat/completions",
        "authentication": "none",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"model\": \"gpt-4\",\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Explica en 2 lineas que es n8n\"\n    }\n  ],\n  \"temperature\": 0.7,\n  \"max_tokens\": 500\n}",
        "options": {}
      },
      "id": "http-copilot",
      "name": "Llamar a Copilot API",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        450,
        300
      ]
    },
    {
      "parameters": {
        "jsCode": "// Extraer la respuesta del GPT-4\nconst response = $input.item.json;\nconst mensaje = response.choices[0].message.content;\n\nreturn {\n  json: {\n    pregunta: \"Explica en 2 lineas que es n8n\",\n    respuesta: mensaje,\n    modelo: response.model,\n    timestamp: new Date().toISOString()\n  }\n};"
      },
      "id": "code-format",
      "name": "Formatear Respuesta",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        650,
        300
      ]
    }
  ],
  "connections": {
    "Inicio Manual": {
      "main": [
        [
          {
            "node": "Llamar a Copilot API",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Llamar a Copilot API": {
      "main": [
        [
          {
            "node": "Formatear Respuesta",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [],
  "triggerCount": 0,
  "updatedAt": "2025-11-04T19:23:00.000Z",
  "versionId": "1"
}

About this workflow

🤖 Ejemplo: Copilot API (GPT-4 Gratis). Uses httpRequest. Event-driven trigger; 3 nodes.

Source: https://github.com/Anntonios1/EFIG/blob/777f95d9636a256fd75702aa507aec09a60a5f29/workflows/ejemplo_copilot_api.json — original creator credit. Request a take-down →

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