Webhook to GPT-4o AI Response Workflow

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "Orchestrateur RimuruOS",
  "nodes": [
    {
      "parameters": {
        "path": "/commande-magique",
        "options": {}
      },
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "authentication": "predefinedCredentialType",
        "url": "https://api.openai.com/v1/chat/completions",
        "method": "POST",
        "responseFormat": "json",
        "options": {},
        "bodyParametersUi": {
          "parameter": [
            {
              "name": "model",
              "value": "gpt-4o"
            },
            {
              "name": "messages",
              "value": "[{\"role\":\"system\",\"content\":\"Tu es un interpr\u00e9teur de commandes magiques RimuruOS. Donne uniquement une instruction simple \u00e0 ex\u00e9cuter en JSON. Exemple: {\\\"action\\\": \\\"redemarrer_mageai\\\"}\"}, {\"role\":\"user\",\"content\":\"{{ $json[\\\"commande\\\"] }}\"}]"
            }
          ]
        }
      },
      "name": "GPT-4o",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 1,
      "position": [
        550,
        300
      ],
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "functionCode": "return [{ json: { message: 'Commande interpr\u00e9t\u00e9e et pr\u00eate \u00e0 ex\u00e9cuter.' } }];"
      },
      "name": "Ex\u00e9cution simul\u00e9e",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        800,
        300
      ]
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "GPT-4o",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "GPT-4o": {
      "main": [
        [
          {
            "node": "Ex\u00e9cution simul\u00e9e",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• httpHeaderAuth

About this workflow

Orchestrateur RimuruOS. Uses httpRequest. Webhook trigger; 3 nodes.

Source: https://github.com/DG-Elom/agent-repo/blob/25b593b63b7e023bf90555532a1a2a3cf80df298/rimuru_orchestrateur/n8n_orchestrateur_rimuru.json — original creator credit. Request a take-down →

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