How do I install the Clicksend skill?

Run npx skillmds@latest add modbender/clicksend in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Clicksend skill do?

ClickSend API integration with managed authentication. Send SMS, MMS, and voice messages, manage contacts and lists. Use this skill when users want to send text messages, make voice calls, manage contact lists, or track message delivery. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway). It is listed under Integrations & APIs on SkillMD.

Is Clicksend safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: WARNING, Skill Scanner: WARNING. Capability flags: makes network calls, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Clicksend?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Clicksend free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Clicksend?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Clicksend by modbender — Agent Skill

Name: Clicksend
Rating: 4.2 (5 reviews)
Author: modbender

ClickSend

Access the ClickSend API with managed authentication. Send SMS, MMS, and voice messages, manage contacts and lists, and track message delivery.

Quick Start

# Get account info
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/clicksend/v3/account')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://gateway.maton.ai/clicksend/{native-api-path}

Replace {native-api-path} with the actual ClickSend API endpoint path. The gateway proxies requests to rest.clicksend.com and automatically injects your authentication.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

Sign in or create an account at maton.ai
Go to maton.ai/settings
Copy your API key

Connection Management

Manage your ClickSend connections at https://ctrl.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=clicksend&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'clicksend'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "37beee67-29f7-43b6-b0b2-5f0f7a5d6440",
    "status": "ACTIVE",
    "creation_time": "2026-02-10T10:04:12.418030Z",
    "last_updated_time": "2026-02-10T10:06:17.059090Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "clicksend",
    "metadata": {}
  }
}

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple ClickSend connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/clicksend/v3/account')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '37beee67-29f7-43b6-b0b2-5f0f7a5d6440')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

Response Format

All ClickSend API responses follow this structure:

{
  "http_code": 200,
  "response_code": "SUCCESS",
  "response_msg": "Description of the result",
  "data": { ... }
}

Account

Get Account

GET /clicksend/v3/account

Response:

{
  "http_code": 200,
  "response_code": "SUCCESS",
  "response_msg": "Here's your account",
  "data": {
    "user_id": 672721,
    "username": "user@example.com",
    "user_email": "user@example.com",
    "balance": "2.005718",
    "user_phone": "+18019234886",
    "user_first_name": "John",
    "user_last_name": "Doe",
    "country": "US",
    "default_country_sms": "US",
    "timezone": "America/Chicago",
    "_currency": {
      "currency_name_short": "USD",
      "currency_prefix_d": "$"
    }
  }
}

SMS

Send SMS

POST /clicksend/v3/sms/send
Content-Type: application/json

{
  "messages": [
    {
      "to": "+15551234567",
      "body": "Hello from ClickSend!",
      "source": "api"
    }
  ]
}

Parameters:

Field	Type	Description
`to`	string	Recipient phone number (E.164 format)
`body`	string	SMS message content
`source`	string	Source identifier (e.g., "api", "sdk")
`from`	string	Sender ID (optional)
`schedule`	int	Unix timestamp for scheduled send (optional)
`custom_string`	string	Custom reference (optional)

Get SMS Price

POST /clicksend/v3/sms/price
Content-Type: application/json

{
  "messages": [
    {
      "to": "+15551234567",
      "body": "Test message",
      "source": "api"
    }
  ]
}

SMS History

GET /clicksend/v3/sms/history

Query Parameters:

Parameter	Description
`date_from`	Unix timestamp for start date
`date_to`	Unix timestamp for end date
`page`	Page number (default: 1)
`limit`	Results per page (default: 15)

Inbound SMS

GET /clicksend/v3/sms/inbound

SMS Receipts (Delivery Reports)

GET /clicksend/v3/sms/receipts

Cancel Scheduled SMS

PUT /clicksend/v3/sms/{message_id}/cancel

Cancel All Scheduled SMS

PUT /clicksend/v3/sms/cancel-all

SMS Templates

List Templates

GET /clicksend/v3/sms/templates

Response:

{
  "http_code": 200,
  "response_code": "SUCCESS",
  "response_msg": "Here are your templates.",
  "data": {
    "total": 1,
    "per_page": 15,
    "current_page": 1,
    "data": [
      {
        "template_id": 632497,
        "body": "Hello {name}, this is a test message.",
        "template_name": "Test Template"
      }
    ]
  }
}

Create Template

POST /clicksend/v3/sms/templates
Content-Type: application/json

{
  "template_name": "Welcome Message",
  "body": "Hello {name}, welcome to our service!"
}

Update Template

PUT /clicksend/v3/sms/templates/{template_id}
Content-Type: application/json

{
  "template_name": "Updated Template",
  "body": "Updated message content"
}

Delete Template

DELETE /clicksend/v3/sms/templates/{template_id}

MMS

Send MMS

POST /clicksend/v3/mms/send
Content-Type: application/json

{
  "messages": [
    {
      "to": "+15551234567",
      "body": "Check out this image!",
      "media_file": "https://example.com/image.jpg",
      "source": "api"
    }
  ]
}

MMS History

GET /clicksend/v3/mms/history

Get MMS Price

POST /clicksend/v3/mms/price
Content-Type: application/json

{
  "messages": [...]
}

MMS Receipts

GET /clicksend/v3/mms/receipts

Voice

Send Voice Message

POST /clicksend/v3/voice/send
Content-Type: application/json

{
  "messages": [
    {
      "to": "+15551234567",
      "body": "Hello, this is a voice message.",
      "voice": "female",
      "lang": "en-us",
      "source": "api"
    }
  ]
}

Voice Parameters:

Field	Description
`to`	Recipient phone number
`body`	Text to be spoken
`voice`	Voice gender: `male` or `female`
`lang`	Language code (e.g., `en-us`, `en-gb`, `de-de`)
`schedule`	Unix timestamp for scheduled call
`require_input`	Require keypad input (0-1)
`machine_detection`	Detect answering machine (0-1)

Available Languages

GET /clicksend/v3/voice/lang

Returns list of supported languages with codes and available genders.

Voice History

GET /clicksend/v3/voice/history

Note: Requires voice access enabled on account.

Get Voice Price

POST /clicksend/v3/voice/price

Cancel Voice Message

PUT /clicksend/v3/voice/{message_id}/cancel

Contact Lists

List All Lists

GET /clicksend/v3/lists

Response:

{
  "http_code": 200,
  "response_code": "SUCCESS",
  "response_msg": "Here are your contact lists.",
  "data": {
    "total": 2,
    "data": [
      {
        "list_id": 3555277,
        "list_name": "Opt-Out List",
        "_contacts_count": 0
      },
      {
        "list_id": 3555278,
        "list_name": "Example List",
        "_contacts_count": 10
      }
    ]
  }
}

Get List

GET /clicksend/v3/lists/{list_id}

Create List

POST /clicksend/v3/lists
Content-Type: application/json

{
  "list_name": "My New List"
}

Update List

PUT /clicksend/v3/lists/{list_id}
Content-Type: application/json

{
  "list_name": "Updated List Name"
}

Delete List

DELETE /clicksend/v3/lists/{list_id}

Remove Duplicates

PUT /clicksend/v3/lists/{list_id}/remove-duplicates

Contacts

List Contacts in a List

GET /clicksend/v3/lists/{list_id}/contacts

Query Parameters:

Parameter	Description
`page`	Page number
`limit`	Results per page
`updated_after`	Filter contacts updated after timestamp

Get Contact

GET /clicksend/v3/lists/{list_id}/contacts/{contact_id}

Response:

{
  "http_code": 200,
  "response_code": "SUCCESS",
  "data": {
    "contact_id": 1581565666,
    "list_id": 3555278,
    "phone_number": "+18019234886",
    "first_name": "John",
    "last_name": "Doe",
    "email": "john@example.com",
    "custom_1": "",
    "custom_2": "",
    "custom_3": "",
    "custom_4": "",
    "organization_name": "",
    "address_city": "",
    "address_state": "",
    "address_country": "US"
  }
}

Create Contact

POST /clicksend/v3/lists/{list_id}/contacts
Content-Type: application/json

{
  "phone_number": "+15551234567",
  "first_name": "John",
  "last_name": "Doe",
  "email": "john@example.com"
}

Contact Fields:

Field	Description
`phone_number`	Phone number (E.164 format)
`first_name`	First name
`last_name`	Last name
`email`	Email address
`fax_number`	Fax number
`organization_name`	Company name
`custom_1` - `custom_4`	Custom fields
`address_line_1`, `address_line_2`	Address
`address_city`, `address_state`, `address_postal_code`, `address_country`	Address components

Update Contact

PUT /clicksend/v3/lists/{list_id}/contacts/{contact_id}
Content-Type: application/json

{
  "first_name": "Jane",
  "last_name": "Smith"
}

Delete Contact

DELETE /clicksend/v3/lists/{list_id}/contacts/{contact_id}

Copy Contact to Another List

PUT /clicksend/v3/lists/{from_list_id}/contacts/{contact_id}/copy/{to_list_id}

Transfer Contact to Another List

PUT /clicksend/v3/lists/{from_list_id}/contacts/{contact_id}/transfer/{to_list_id}

Email Addresses

List Verified Email Addresses

GET /clicksend/v3/email/addresses

Add Email Address

POST /clicksend/v3/email/addresses
Content-Type: application/json

{
  "email_address": "sender@example.com"
}

Delete Email Address

DELETE /clicksend/v3/email/addresses/{email_address_id}

Utility Endpoints

List Countries

GET /clicksend/v3/countries

Returns list of all supported countries with codes.

Pagination

ClickSend uses page-based pagination:

GET /clicksend/v3/lists?page=2&limit=50

Response includes:

{
  "data": {
    "total": 100,
    "per_page": 50,
    "current_page": 2,
    "last_page": 2,
    "next_page_url": null,
    "prev_page_url": "...?page=1",
    "from": 51,
    "to": 100,
    "data": [...]
  }
}

Parameters:

page - Page number (default: 1)
limit - Results per page (default: 15)

Code Examples

JavaScript

const response = await fetch(
  'https://gateway.maton.ai/clicksend/v3/sms/send',
  {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      messages: [
        {
          to: '+15551234567',
          body: 'Hello from ClickSend!',
          source: 'api'
        }
      ]
    })
  }
);
const data = await response.json();
console.log(data);

Python

import os
import requests

response = requests.post(
    'https://gateway.maton.ai/clicksend/v3/sms/send',
    headers={
        'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
        'Content-Type': 'application/json'
    },
    json={
        'messages': [
            {
                'to': '+15551234567',
                'body': 'Hello from ClickSend!',
                'source': 'api'
            }
        ]
    }
)
data = response.json()
print(f"Status: {data['response_code']}")

Notes

Phone numbers must be in E.164 format (e.g., +15551234567)
All timestamps are Unix timestamps (seconds since epoch)
Use source field to identify your application in analytics
Templates support placeholders like {name}, {custom_1}, etc.
SMS messages over 160 characters are split into multiple segments
Voice access requires account-level permissions
IMPORTANT: When using curl commands, use curl -g when URLs contain brackets to disable glob parsing
IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments

Error Handling

Status	Meaning
200	Success
400	Bad request
401	Unauthorized - invalid credentials
403	Forbidden - insufficient permissions
404	Resource not found
429	Rate limited
500	Internal server error

Response codes:

SUCCESS - Operation completed successfully
FORBIDDEN - Access denied to resource
BAD_REQUEST - Invalid request parameters
INVALID_RECIPIENT - Invalid phone number

Troubleshooting: API Key Issues

Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

Ensure your URL path starts with clicksend. For example:

Correct: https://gateway.maton.ai/clicksend/v3/account
Incorrect: https://gateway.maton.ai/v3/account

Clicksend

File contents

ClickSend

Quick Start

Base URL

Authentication

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

Response Format

Account

Get Account

SMS

Send SMS

Get SMS Price

SMS History

Inbound SMS

SMS Receipts (Delivery Reports)

Cancel Scheduled SMS

Cancel All Scheduled SMS

SMS Templates

List Templates

Create Template

Update Template

Delete Template

MMS

Send MMS

MMS History

Get MMS Price

MMS Receipts

Voice

Send Voice Message

Available Languages

Voice History

Get Voice Price

Cancel Voice Message

Contact Lists

List All Lists

Get List

Create List

Update List

Delete List

Remove Duplicates

Contacts

List Contacts in a List

Get Contact

Create Contact

Update Contact

Delete Contact

Copy Contact to Another List

Transfer Contact to Another List

Email Addresses

List Verified Email Addresses

Add Email Address

Delete Email Address

Utility Endpoints

List Countries

Pagination

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: API Key Issues

Troubleshooting: Invalid App Name

Resources

Related skills

Frequently asked questions

How do I install the Clicksend skill?

What does the Clicksend skill do?

Is Clicksend safe to use?

Which AI agents work with Clicksend?

Is Clicksend free to use?

Who published Clicksend?