How to integrate ClickSend MCP with Claude Code

Framework Integration Gradient
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Introduction

Manage your ClickSend directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns.

You can do this in two different ways:

  1. Via Rube - Direct and easiest approach
  2. Via Composio SDK - Programmatic approach with more control

Why Rube?

Rube is a universal MCP server with access to 850+ SaaS apps. It ensures just-in-time tool loading so Claude can access the tools it needs, a remote workbench for programmatic tool calling and handling large tool responses out of the LLM context window, ensuring the LLM context window remains clean.

Connect ClickSend to Claude Code with Rube

1. Get the MCP URL

Copy and paste the below command in Claude Code to add Rube MCP.

Terminal

2. Authenticate Rube

Run /mcp to view Rube

bash
/mcp
Run /mcp to view Rube in Claude Code
Click on Rube to authenticate
Authentication flow complete

3. Ensure it's connected

Run /mcp again to verify the connection. Now, do whatever you want with Claude Code and ClickSend.

Rube connected successfully

Supported Tools & Triggers

Tools
Get Account Usage by SubaccountTool to retrieve account usage statistics by subaccount for a specific month and year.
Send Account Activation TokenTool to send an account activation token for verification.
Verify New AccountTool to verify a new ClickSend account using an activation token.
Calculate Post Letter PriceTool to calculate the price for sending post letters without actually sending them.
Calculate SMS Campaign PriceTool to calculate the price for an SMS campaign before sending.
Create Email Delivery Receipt AutomationTool to create an email delivery receipt automation rule in ClickSend.
Create Inbound Fax AutomationTool to create a new inbound fax automation rule in ClickSend.
Create Fax Delivery Receipt AutomationTool to create a fax delivery receipt automation rule in ClickSend.
Create Inbound SMS AutomationTool to create a new inbound SMS automation rule in ClickSend.
Create SMS Delivery Receipt AutomationTool to create an SMS delivery receipt automation rule in ClickSend.
Create Voice Delivery Receipt AutomationTool to create a voice delivery receipt automation rule in ClickSend.
Create Delivery IssueTool to create a delivery issue report in ClickSend.
Create Allowed Email AddressTool to create an allowed email address for sending transactional emails.
Get Allowed Email AddressesTool to retrieve list of allowed email addresses for sending transactional emails.
Create Email Template from MasterTool to create a new email template from an existing master template.
Add Fax Delivery Receipt WebhookTool to add a webhook URL for fax delivery receipt notifications.
Create Contact ListTool to create a new contact list in your ClickSend account.
Create Contact in ListTool to create a new contact in a specific contact list in your ClickSend account.
Send MMS MessagesTool to send MMS messages with media attachments to recipients.
Send Direct Mail CampaignTool to create and send a direct mail campaign to specified locations.
Detect Address from PDF or StringTool to detect and convert addresses to standard format from PDF or address string.
Send Post LetterTool to send physical letters through ClickSend's postal service.
Create Post Return AddressTool to create a new post return address for ClickSend postal services.
Get All Post Return AddressesTool to retrieve a list of all post return addresses from ClickSend account with pagination.
Create and Send SMS CampaignTool to create and send an SMS campaign to a contact list.
Create Email-to-SMS Allowed AddressTool to create an allowed email address for email-to-SMS conversion.
Get SMS Email-to-SMS Allowed AddressTool to retrieve a specific allowed email address for SMS email-to-SMS by its ID.
Update Email-to-SMS Allowed AddressTool to update a specific allowed email address for email-to-SMS.
Delete SMS Email-to-SMS Allowed AddressTool to delete a specific allowed email address from SMS email-to-SMS settings.
Create Email to SMS Stripped String RuleTool to create an email to SMS stripped string rule.
Create Test Inbound SMSTool to create a test inbound SMS webhook configuration in ClickSend.
Add SMS Delivery Receipt WebhookTool to add a test SMS delivery receipt webhook in ClickSend.
Send SMS MessagesTool to send one or more SMS messages via ClickSend.
Create SMS TemplateTool to create a new SMS template for reuse in campaigns.
Create SubaccountTool to create a new subaccount in ClickSend with access permissions and credentials.
Delete Email Delivery Receipt AutomationTool to delete an email delivery receipt automation rule.
Delete Inbound SMS AutomationTool to delete an inbound SMS automation rule.
Delete Contact ListTool to delete a specific contact list from your ClickSend account.
Delete Contact from ListTool to delete a specific contact from a contact list in your ClickSend account.
Remove Opted Out Contacts from ListTool to remove all opted out contacts from a contact list using an opt out list reference.
Cancel Scheduled SMSTool to cancel a scheduled SMS message by updating its status to cancelled.
Delete SMS TemplateTool to delete an SMS template by its template ID.
Delete SubaccountTool to delete a specific subaccount from the system.
Get Email CampaignTool to retrieve details of a specific email campaign by its ID.
Delete Email Delivery Receipt AutomationTool to delete an email delivery receipt automation rule.
Get Email Delivery Receipt AutomationTool to retrieve a specific email delivery receipt automation rule by its ID.
Update Email Delivery Receipt AutomationTool to update an email delivery receipt automation rule in ClickSend.
Delete Email TemplateTool to delete an email template by its template ID.
Get Email TemplateTool to retrieve a specific user email template by its template ID.
Update Email TemplateTool to update an existing email template in ClickSend.
Export Post Letters HistoryTool to export post letter history to a downloadable CSV file.
Delete Fax Delivery Receipt AutomationTool to delete a fax delivery receipt automation rule.
Get Fax Delivery Receipt AutomationTool to retrieve a specific fax delivery receipt automation rule by its ID.
Update Fax Delivery Receipt AutomationTool to update fax delivery receipt automation.
Update Inbound Fax AutomationTool to update an existing inbound fax automation rule in ClickSend.
Get Fax Receipt by Message IDTool to retrieve a single fax delivery receipt using the message identifier.
Mark Fax Receipts as ReadTool to mark fax delivery receipts as read in ClickSend.
Get Account InformationTool to retrieve authenticated user's account information.
Get All Email Delivery Receipt AutomationsTool to retrieve all email delivery receipt automation rules configured in your ClickSend account.
Get All Inbound Fax AutomationsTool to retrieve all inbound fax automation rules configured in your ClickSend account.
Get All Fax Delivery Receipt AutomationsTool to retrieve all fax delivery receipt automation rules configured in your ClickSend account.
Get All Inbound SMS AutomationsTool to retrieve all inbound SMS automation rules configured in your ClickSend account.
Get All SMS Delivery Receipt AutomationsTool to retrieve all SMS delivery receipt automation rules configured in your ClickSend account.
Get All Voice Delivery Receipt AutomationsTool to retrieve all voice delivery receipt automation rules configured in your ClickSend account.
Get Contact SuggestionsTool to retrieve contact suggestions from your ClickSend account.
Get All CountriesTool to retrieve all available country codes that ClickSend supports.
Get All Delivery IssuesTool to retrieve all delivery issues from your ClickSend account.
Get All Master Email TemplatesTool to retrieve all master email templates.
Get All Master Email Template CategoriesTool to retrieve all master email template categories.
Get All User Email TemplatesTool to retrieve all user email templates.
Get Fax Delivery ReceiptsTool to retrieve fax delivery receipts from your ClickSend account.
Get All Contact ListsTool to retrieve all contact lists from ClickSend account with pagination support.
Get Specific Contact ListTool to retrieve a specific contact list by its list ID.
Get All Contacts in ListTool to retrieve all contacts from a specific contact list in your ClickSend account with pagination and filtering support.
Get Specific ContactTool to retrieve a specific contact from a contact list in your ClickSend account.
Export Contacts ListTool to export contacts from a specific list to a CSV file.
Import Contacts to ListTool to import contacts to a contact list from a publicly accessible file URL.
Preview CSV Import for Contact ListTool to preview the first row of a CSV import file for a contact list in ClickSend.
Get List Import FieldsTool to retrieve acceptable import fields for a contact list in ClickSend.
Export MMS HistoryTool to export MMS message history with filtering, ordering, and pagination.
Get MMS Delivery ReceiptsTool to retrieve all MMS delivery receipts from your ClickSend account.
Get Dedicated NumbersTool to retrieve all available dedicated numbers associated with your ClickSend account.
Search Dedicated Numbers by CountryTool to search for available dedicated numbers by country code.
Search Direct Mail LocationsTool to search for direct mail locations in a specific country.
Get Post Letters HistoryTool to retrieve all post letters history with pagination.
Get Country PricingTool to retrieve pricing information for a specific country.
Get Referral AccountsTool to retrieve a list of referral accounts with pagination support.
Get Reseller SettingsTool to retrieve reseller settings and account information.
Get Reseller AccountsTool to retrieve a list of reseller accounts with pagination support.
Get SMS CampaignTool to retrieve details of a specific SMS campaign by its ID.
Get SMS Campaigns ListTool to retrieve all SMS campaigns with pagination and statistics breakdown.
Get Email to SMS Stripped String Rules ListTool to retrieve the list of email to sms stripped string rules with pagination support.
Get SMS HistoryTool to retrieve sent SMS message history with filtering and pagination.
Get Inbound SMS MessagesTool to retrieve inbound SMS messages sent to your account.
Get SMS Delivery ReceiptsTool to retrieve SMS delivery receipts from your ClickSend account.
Get All SMS TemplatesTool to retrieve all SMS templates from ClickSend account with pagination and filtering support.
Get SMS StatisticsTool to retrieve SMS messaging statistics for your ClickSend account.
Get Voice StatisticsTool to retrieve voice messaging statistics for your ClickSend account.
Get All SubaccountsTool to retrieve all subaccounts from ClickSend account with pagination support.
Get Specific SubaccountTool to retrieve detailed information about a specific subaccount by its ID.
Get Supported TimezonesTool to retrieve supported list of timezones.
Get Voice LanguagesTool to retrieve all available voice languages for text-to-speech.
List CountriesTool to retrieve the list of countries with IDs for global sending.
Copy Contact to Another ListTool to copy a contact from one list to another list.
Transfer Contact Between ListsTool to transfer a contact from one list to another in your ClickSend account.
Mark SMS Receipts as ReadTool to mark SMS delivery receipts as read in ClickSend.
Mark Voice Receipts as ReadTool to mark voice delivery receipts as read in ClickSend.
Get Master Email Template CategoryTool to retrieve a specific master email template category by its ID.
Get Master Email TemplateTool to retrieve a specific master email template by its template ID.
Get Master Email Templates in CategoryTool to retrieve all master email templates within a specific category.
Update MMS CampaignTool to update an existing MMS campaign with new parameters.
Cancel MMS CampaignTool to cancel a scheduled MMS campaign in ClickSend.
Get MMS CampaignsTool to retrieve all MMS campaigns with pagination and filtering support.
Calculate MMS Campaign PriceTool to calculate the price for an MMS campaign before sending.
Send MMS CampaignTool to create and send an MMS campaign to a contact list with multimedia content.
Export MMS HistoryTool to export all MMS history to a file.
Get MMS HistoryTool to retrieve all MMS message history with filtering and pagination.
Calculate MMS PriceTool to calculate the price for sending MMS messages without actually sending them.
Mark MMS Receipts as ReadTool to mark MMS delivery receipts as read in ClickSend.
Buy Dedicated NumberTool to purchase a dedicated phone number from ClickSend.
Delete Post Return AddressTool to delete a specific post return address from the system.
Get Post Return AddressTool to retrieve a specific post return address by its unique identifier.
Update Post Return AddressTool to update an existing post return address in ClickSend.
Upload FileTool to upload and optionally convert files for use with ClickSend messaging services.
Forgot PasswordTool to initiate password recovery for a ClickSend account.
Forgot UsernameTool to retrieve forgotten username by providing registered email or phone number.
Get Recharge PackagesTool to retrieve all available recharge packages from ClickSend.
Purchase Recharge PackageTool to purchase a recharge package by package ID.
Get Recharge Transaction by IDTool to retrieve details of a specific recharge transaction by transaction ID.
Get All Recharge TransactionsTool to retrieve all recharge transactions from ClickSend account with pagination support.
Search Contact ListsTool to search contact lists in ClickSend account with pagination support.
Send Email Verification TokenTool to send a verification email containing an activation token to a registered email address.
Cancel SMS CampaignTool to cancel a scheduled SMS campaign in ClickSend.
Cancel All Scheduled SMSTool to cancel all scheduled SMS messages in ClickSend.
Delete SMS Delivery Receipt AutomationTool to delete an SMS delivery receipt automation rule.
Get SMS Delivery Receipt AutomationTool to retrieve a specific SMS delivery receipt automation rule by its ID.
Update SMS Delivery Receipt AutomationTool to update an SMS delivery receipt automation rule in ClickSend.
Delete Email to SMS Stripped String RuleTool to delete an email to SMS stripped string rule from the account.
Get Email to SMS Stripped String RuleTool to retrieve an email to SMS stripped string rule by its ID.
Update Email to SMS Stripped String RuleTool to update an email to SMS stripped string rule.
Export SMS HistoryTool to export all SMS history to a file.
Get SMS HistoryTool to retrieve all SMS message history with filtering and pagination.
Delete Inbound SMS AutomationTool to delete an inbound SMS automation rule.
Get Inbound SMS AutomationTool to retrieve a specific inbound SMS automation rule by its ID.
Update Inbound SMS AutomationTool to update an existing inbound SMS automation rule in ClickSend.
Mark Inbound SMS as Read by Message IDTool to mark a specific inbound SMS message as read in ClickSend.
Mark Inbound SMS as ReadTool to mark inbound SMS messages as read in ClickSend.
Calculate SMS PriceTool to calculate the price for sending SMS messages without actually sending them.
Get SMS Receipt by Message IDTool to retrieve a single SMS delivery receipt using the message identifier.
Mark SMS Delivery Receipts as ReadTool to mark SMS delivery receipts as read in ClickSend.
Delete SMS TemplateTool to delete an SMS template by its template ID.
Update SMS TemplateTool to update an existing SMS template in ClickSend.
Delete Specific Allowed Email AddressTool to delete a specific allowed email address from the account.
Get Specific Allowed Email AddressTool to retrieve a specific allowed email address by its ID.
Regenerate Subaccount API KeyTool to regenerate API key for a specific subaccount.
Update Account InformationTool to update authenticated user's account information.
Update Email Delivery Receipt AutomationTool to update an email delivery receipt automation rule in ClickSend.
Update Inbound Fax AutomationTool to update an inbound fax automation rule in ClickSend.
Update Fax Delivery Receipt AutomationTool to update a fax delivery receipt automation rule in ClickSend.
Update Inbound SMS AutomationTool to update an existing inbound SMS automation rule in ClickSend.
Update SMS Delivery Receipt AutomationTool to update an SMS delivery receipt automation rule in ClickSend.
Update Voice Delivery Receipt AutomationTool to update a voice delivery receipt automation rule in ClickSend.
Update Contact ListTool to update the name of a specific contact list in your ClickSend account.
Update Contact in ListTool to update a specific contact in a contact list in your ClickSend account.
Get Recharge Credit Card InfoTool to retrieve stored credit card payment information in tokenized form.
Update Recharge Credit Card InfoTool to update credit card payment information for account recharge.
Update Reseller SettingsTool to update reseller account settings and configuration.
Update SMS CampaignTool to update an existing SMS campaign.
Update Stripped StringTool to update an email to SMS stripped string rule.
Update SMS TemplateTool to update an existing SMS template by its template ID.
Update SubaccountTool to update a specific subaccount's details and permissions in ClickSend.
Upload FileTool to upload files to ClickSend for use in messaging campaigns.
Agree to User Countries RulesTool to agree on rules and regulations for selected countries in Global Sending.
Get User CountriesTool to retrieve the list of selected countries for Global Sending.
Select User CountriesTool to select countries for Global SMS/MMS sending.
Verify Allowed Email AddressTool to verify an email address using the activation token sent to it.
Verify Forgot PasswordTool to verify forgot password request and reset user password.
Cancel All Scheduled Voice MessagesTool to cancel all scheduled voice messages in ClickSend.
Delete Voice Receipt AutomationTool to delete a voice delivery receipt automation rule.
Get Voice Delivery Receipt AutomationTool to retrieve a specific voice delivery receipt automation rule by its ID.
Update Voice Delivery Receipt AutomationTool to update a voice delivery receipt automation rule in ClickSend.
Export Voice HistoryTool to export all voice history to a file.
Mark Voice Delivery Receipts as ReadTool to mark voice delivery receipts as read in ClickSend.

What is the ClickSend MCP server, and what's possible with it?

The ClickSend MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your ClickSend account. It provides structured and secure access so your agent can perform ClickSend operations on your behalf.

Connecting ClickSend via Tool Router

Tool Router is the underlying tech that powers Rube. It's a universal gateway that does everything Rube does but with much more programmatic control. You can programmatically generate an MCP URL with the app you need (here ClickSend) for even more tool search precision. It's secure and reliable.

How the Tool Router works

The Tool Router follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Prerequisites

Before starting, make sure you have:
  • Claude Pro, Max, or API billing enabled Anthropic account
  • Composio API Key
  • A ClickSend account
  • Basic knowledge of Python or TypeScript

Install Claude Code

bash
# macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

# Windows CMD
curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd

To install Claude Code, use one of the following methods based on your operating system:

Set up Claude Code

bash
cd your-project-folder
claude

Open a terminal, go to your project folder, and start Claude Code:

  • Claude Code will open in your terminal
  • Follow the prompts to sign in with your Anthropic account
  • Complete the authentication flow
  • Once authenticated, you can start using Claude Code
Claude Code initial setup showing sign-in prompt
Claude Code terminal after successful login

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here

Create a .env file in your project root with the following variables:

  • COMPOSIO_API_KEY authenticates with Composio (get it from Composio dashboard)
  • USER_ID identifies the user for session management (use any unique identifier)

Install Composio library

pip install composio-core python-dotenv

Install the Composio Python library to create MCP sessions.

  • composio-core provides the core Composio functionality
  • python-dotenv loads environment variables from your .env file

Generate Composio MCP URL

import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["clicksend"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http clicksend-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Create a script to generate a Composio MCP URL for ClickSend. This URL will be used to connect Claude Code to ClickSend.

What's happening:

  • We import the Composio client and load environment variables
  • Create a Composio instance with your API key
  • Call create() to create a Tool Router session for ClickSend
  • The returned mcp.url is the MCP server URL that Claude Code will use
  • The script prints this URL so you can copy it

Run the script and copy the MCP URL

python generate_mcp_url.py

Run your Python script to generate the MCP URL.

  • The script connects to Composio and creates a Tool Router session
  • It prints the MCP URL and the exact command you need to run
  • Copy the entire claude mcp add command from the output

Add ClickSend MCP to Claude Code

bash
claude mcp add --transport http clicksend-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude

In your terminal, add the MCP server using the command from the previous step. The command format is:

  • claude mcp add registers a new MCP server with Claude Code
  • --transport http specifies that this is an HTTP-based MCP server
  • The server name (clicksend-composio) is how you'll reference it
  • The URL points to your Composio Tool Router session
  • --headers includes your Composio API key for authentication

After running the command, close the current Claude Code session and start a new one for the changes to take effect.

Verify the installation

bash
claude mcp list

Check that your ClickSend MCP server is properly configured.

  • This command lists all MCP servers registered with Claude Code
  • You should see your clicksend-composio entry in the list
  • This confirms that Claude Code can now access ClickSend tools

If everything is wired up, you should see your clicksend-composio entry listed:

Claude Code MCP list showing the toolkit MCP server

Authenticate ClickSend

The first time you try to use ClickSend tools, you'll be prompted to authenticate.

  • Claude Code will detect that you need to authenticate with ClickSend
  • It will show you an authentication link
  • Open the link in your browser (or copy/paste it)
  • Complete the ClickSend authorization flow
  • Return to the terminal and start using ClickSend through Claude Code

Once authenticated, you can ask Claude Code to perform ClickSend operations in natural language. For example:

  • "Send SMS campaign to all event attendees"
  • "Add a new contact to ClickSend list"
  • "Retrieve delivery status for my last SMS"

Complete Code

Here's the complete code to get you started with ClickSend and Claude Code:

import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["clicksend"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http clicksend-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Conclusion

You've successfully integrated ClickSend with Claude Code using Composio's MCP server. Now you can interact with ClickSend directly from your terminal using natural language commands.

Key features of this setup:

  • Terminal-native experience without switching contexts
  • Natural language commands for ClickSend operations
  • Secure authentication through Composio's managed MCP
  • Tool Router for dynamic tool discovery and execution

Next steps:

  • Try asking Claude Code to perform various ClickSend operations
  • Add more toolkits to your Tool Router session for multi-app workflows
  • Integrate this setup into your development workflow for increased productivity

You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities.

How to build ClickSend MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and ClickSend MCP?

With a standalone ClickSend MCP server, the agents and LLMs can only access a fixed set of ClickSend tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from ClickSend and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Claude Code?

Yes, you can. Claude Code fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right ClickSend tools.

Can I manage the permissions and scopes for ClickSend while using Tool Router?

Yes, absolutely. You can configure which ClickSend scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your ClickSend data and credentials are handled as safely as possible.

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