Davide Boizza This workflow corresponds to n8n.io template #3072 — we link there as the canonical source.
This workflow follows the Form Trigger → HTTP Request recipe pattern — see all workflows that pair these two integrations.
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 →
{
"id": "GrGmuKzZAsCkd4bt",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Send TTS (Text-to-speech) voice calls",
"tags": [],
"nodes": [
{
"id": "2b14ce1c-5213-4684-90a6-ef8b6885f2ef",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-300,
-520
],
"parameters": {
"width": 440,
"height": 180,
"content": "## STEP 1\n[Register here to ClickSend](https://clicksend.com/?u=586989) and obtain your API Key and 2 \u20ac of free credits\n\nIn the node \"Send Voice\" create a \"Basic Auth\" with the username you registered and the API Key provided as your password"
},
"typeVersion": 1
},
{
"id": "b3931dc5-7021-4ca2-ae73-8bf670a56cb7",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-300,
-300
],
"parameters": {
"width": 440,
"content": "## STEP 2\n\nSubmit the form and you will receive a call to the phone number you entered where the selected voice will tell you the content of the text you wrote."
},
"typeVersion": 1
},
{
"id": "a548f92d-199e-4cd2-ae34-742617484831",
"name": "Send Voice",
"type": "n8n-nodes-base.httpRequest",
"position": [
-40,
-100
],
"parameters": {
"url": "https://rest.clicksend.com/v3/voice/send",
"method": "POST",
"options": {},
"jsonBody": "={\n \"messages\": [\n {\n \"source\": \"n8n\",\n \"body\": \"{{ $json.Body }}\",\n \"to\": \"{{ $json.To }}\",\n \"voice\": \"{{ $json.Voice }}\",\n \"lang\": \"{{ $json.Lang }}\",\n \"machine_detection\": 1\n }\n ]\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpBasicAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": " application/json"
}
]
}
},
"credentials": {
"httpBasicAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "ffc2cbe9-6e31-4d54-8e6a-26e94ec50ef4",
"name": "On form submission",
"type": "n8n-nodes-base.formTrigger",
"position": [
-300,
-100
],
"parameters": {
"options": {},
"formTitle": "Send Voice Message",
"formFields": {
"values": [
{
"fieldType": "textarea",
"fieldLabel": "Body",
"placeholder": "Body (max. 600 chars)",
"requiredField": true
},
{
"fieldLabel": "To",
"placeholder": "+39xxxxxxxxxx",
"requiredField": true
},
{
"fieldType": "dropdown",
"fieldLabel": "Voice",
"fieldOptions": {
"values": [
{
"option": "male"
},
{
"option": "female"
}
]
},
"requiredField": true
},
{
"fieldType": "dropdown",
"fieldLabel": "Lang",
"fieldOptions": {
"values": [
{
"option": "en-us \t"
},
{
"option": "it-it"
},
{
"option": "en-au"
},
{
"option": "en-gb"
},
{
"option": "de-de"
},
{
"option": "es-es"
},
{
"option": "fr-fr"
},
{
"option": "is-is"
},
{
"option": "da-dk"
},
{
"option": "nl-nl"
},
{
"option": "pl-pl"
},
{
"option": "pt-br"
},
{
"option": "ru-ru"
}
]
},
"requiredField": true
}
]
}
},
"typeVersion": 2.2
},
{
"id": "397e0b9f-7407-47d6-b242-1b87955a701b",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-300,
-720
],
"parameters": {
"color": 3,
"width": 440,
"content": "## Automate text-to-speech voice calls\nThis workflow is a simple yet powerful way to automate text-to-speech voice calls using the ClickSend API. It\u2019s ideal for notifications, reminders, or any scenario where voice communication is needed."
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "1ad6da32-7197-4f64-b770-88dae8348db2",
"connections": {
"On form submission": {
"main": [
[
{
"node": "Send Voice",
"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.
httpBasicAuth
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About this workflow
This workflow automates the process of sending text-to-speech (TTS) voice calls using API. It allows users to submit a form with the message content, recipient's phone number, voice type, and language, and then sends a voice call with the provided text.
Source: https://n8n.io/workflows/3072/ — original creator credit. Request a take-down →
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