Overview
The ClickSend n8n Integration enables you to connect ClickSend's communication platform with your n8n workflows. n8n helps technical and non-technical users streamline and automate workflows — with ClickSend, you can send SMS, bulk SMS, and MMS, and trigger workflows from inbound SMS.
Key Features
Send SMS to individual numbers
Send SMS to contact lists (bulk messaging)
Send MMS with images
Receive inbound SMS via webhook triggers
Supported Channels
Channel | Status | Notes |
SMS | ✅ Active | Individual messaging |
SMS to Contact List | ✅ Active | Bulk messaging |
MMS | ✅ Active | Includes image attachments |
Inbound SMS | ✅ Active | Via webhook trigger |
Prerequisites
Before you begin, ensure you have:
A ClickSend account (new accounts come with free test credits)
ClickSend API credentials (Username + API Key)
n8n cloud account
Available SMS credits
A ClickSend number (for inbound SMS)
Installation
How to use the ClickSend SMS n8n Community Node
Log in to your n8n Cloud account.
Create a new workflow from scratch.
In the node panel on the left, search for ClickSend SMS in the trigger or action list, then drag the node into your workflow.
Save and publish your workflow.
Setting Up Credentials in n8n
Add a ClickSend node to your workflow
Click Create New Credential
Enter your credentials:
Field | Value |
Username | Your ClickSend email |
API Key | Your ClickSend API key (not your password) |
4. Click Test — n8n will automatically validate the connection
✅ Success → Ready to use
❌ Failure → Recheck your Username and API key
Using the ClickSend Action Node
Available Actions
Send SMS (single recipient)
Send SMS to Contact List (bulk)
Send MMS
SMS Configuration
Field | Description |
Action | SMS |
Operation | Send |
To | Recipient number in international format (e.g., +61411111111) |
Message | SMS content (max 1,224 characters) |
From | Optional sender ID — TFN, 10DLC, alpha tag, or validated own number |
Example:
Parameter | Example |
To | +61411111111 |
Message | Hello from n8n |
From | (optional number or alpha tag) |
MMS Configuration
Field | Description |
Action | MMS |
To | Recipient's international number |
Message | Up to 1,500 characters |
Image URL | Public .jpeg URL (one image only) |
Subject | Required, up to 20 characters |
From | Sender Name — must be TFN, 10DLC, or shared number (alpha tags not supported) |
SMS to Contact List (Bulk)
Field | Description |
Action | SMS |
Operation | Send to Contact List |
List | Select your ClickSend contact list |
Message | SMS content |
From | Optional sender ID |
Receiving Inbound SMS via Webhook
To trigger n8n workflows from inbound SMS:
In n8n:
Add a Webhook node to your workflow
Set the HTTP method to POST
Save and activate the workflow to generate the webhook Production URL (copy this)
In ClickSend:
Log in to your ClickSend Dashboard
Go to SMS → Settings → Inbound SMS Rules
Click Add Rule
Select the ClickSend number you want to use for inbound messages
Paste your n8n webhook URL into the Forward URL field
Save the rule
Test it:
Send an SMS to your ClickSend number
Check your n8n workflow execution log to confirm the webhook received the inbound message payload
Map the payload fields (e.g., sender number, message body) to the rest of your workflow as needed
Note: Inbound SMS is only supported on shared numbers, dedicated numbers, TFNs, and 10DLCs — not alpha tags.
Troubleshooting:
Check credentials: Use your ClickSend username and API key (not your password)
Check account credit: Top up here
Phone number format: Use international format (e.g., +1, +44)
Required fields:
SMS: Recipient number + message
MMS: Recipient number + message + image URL + subject
Inbound SMS: Valid ClickSend number + correctly configured webhook URL
Sender ID issues:
Some countries may require global sending to be enabled (contact support)
Webhook not firing:
Confirm the n8n workflow is active (not just saved)
Confirm the webhook URL in ClickSend matches the n8n Production URL, not the Test URL
Check that the inbound rule is pointed at the correct ClickSend number
FAQ
What package do I need to install?
What package do I need to install?
n8n-nodes-clicksendsms, available via n8n's Community Nodes.
Can I send bulk SMS to a contact list?
Can I send bulk SMS to a contact list?
Yes — select "Send SMS to Contact List" as the operation and choose your ClickSend contact list.
Can I send from an alpha tag?
Can I send from an alpha tag?
Yes — max 11 characters, no spaces. Not supported in all countries, and not supported for MMS or inbound SMS.
Can I receive inbound SMS using alpha tags?
Can I receive inbound SMS using alpha tags?
No. Inbound is only supported on shared numbers, dedicated numbers, TFNs, and 10DLCs.
How do I set an alpha tag as sender?
How do I set an alpha tag as sender?
Enter your business name (11 characters or fewer) in the From field.
How do I set up inbound SMS triggers?
How do I set up inbound SMS triggers?
Add a Webhook node in n8n, activate your workflow, then add an Inbound SMS Rule in your ClickSend dashboard pointing to the n8n webhook URL.
See "Receiving Inbound SMS via Webhook" above.
My credentials won't validate — what should I check?
Confirm you're using your ClickSend account email and API key (not your
My credentials won't validate — what should I check?
Confirm you're using your ClickSend account email and API key (not your
account password), and that your API key hasn't been regenerated since you added it to n8n.
Where can I find other ClickSend channels (Fax, Voice, Postcard, Letter)?
Where can I find other ClickSend channels (Fax, Voice, Postcard, Letter)?
These are available through ClickSend's NPM package and may require additional configuration outside the native n8n node.