Stripe to Brevo Welcome Email with Voice

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 →

{
  "nodes": [
    {
      "id": "73b64763-5e18-4ff1-bb52-ba25a08d3c3a",
      "name": "If params correct",
      "type": "n8n-nodes-base.if",
      "position": [
        500,
        200
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "2e968b41-88f7-4b28-9837-af50ae130979",
              "operator": {
                "type": "string",
                "operation": "exists",
                "singleValue": true
              },
              "leftValue": "voice_id",
              "rightValue": ""
            },
            {
              "id": "ad961bc9-6db8-4cac-8c63-30930e8beca7",
              "operator": {
                "type": "string",
                "operation": "exists",
                "singleValue": true
              },
              "leftValue": "text",
              "rightValue": ""
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "39079dec-54c5-458e-afa1-56ee5723f3a3",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        960,
        180
      ],
      "parameters": {
        "options": {},
        "respondWith": "binary"
      },
      "typeVersion": 1.1
    },
    {
      "id": "b6a344f4-28ac-41a7-8e6a-a2782a5d1c68",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        300,
        200
      ],
      "parameters": {
        "path": "generate-voice",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "a25dec72-152b-4457-a18f-9cbbd31840ec",
      "name": "Generate voice",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        740,
        180
      ],
      "parameters": {
        "url": "=https://api.elevenlabs.io/v1/text-to-speech/{{ $json.body.voice_id }}",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"text\":  \"{{ $json.body.text }}\"\n} ",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpCustomAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        }
      },
      "credentials": {
        "httpCustomAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "e862955e-76d9-4a24-9501-0d5eb8fbe778",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        280,
        -360
      ],
      "parameters": {
        "width": 806.0818150700699,
        "height": 495.17470523089514,
        "content": "## Generate Text-to-Speech Using Elevenlabs via API\nThis workflow provides an API endpoint to generate speech from text using [Elevenlabs.io](https://elevenlabs.io/), a popular text-to-speech service.\n\n### Step 1: Configure Custom Credentials in n8n\nTo set up your credentials in n8n, create a new custom authentication entry with the following JSON structure:\n```json\n{\n  \"headers\": {\n    \"xi-api-key\": \"your-elevenlabs-api-key\"\n  }\n}\n```\nReplace `\"your-elevenlabs-api-key\"` with your actual Elevenlabs API key.\n\n### Step 2: Send a POST Request to the Webhook\nSend a POST request to the workflow's webhook endpoint with these two parameters:\n- `voice_id`: The ID of the voice from Elevenlabs that you want to use.\n- `text`: The text you want to convert to speech.\n\nThis workflow has been a significant time-saver in my video production tasks. I hope it proves just as useful to you!\n\nHappy automating!  \nThe n8Ninja"
      },
      "typeVersion": 1
    },
    {
      "id": "275ca523-8b43-4723-9dc4-f5dc1832fcd1",
      "name": "Error",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        740,
        360
      ],
      "parameters": {
        "options": {},
        "respondWith": "json",
        "responseBody": "{\n  \"error\": \"Invalid inputs.\"\n}"
      },
      "typeVersion": 1.1
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "If params correct",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate voice": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If params correct": {
      "main": [
        [
          {
            "node": "Generate voice",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Error",
            "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.

• httpCustomAuth

About this workflow

Http Respondtowebhook. Uses respondToWebhook, httpRequest, stickyNote. Webhook trigger; 6 nodes.

Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →

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