> For the complete documentation index, see [llms.txt](https://developers.textcus.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.textcus.com/overview.md).

# OVERVIEW

- [Send SMS (v1)](https://developers.textcus.com/overview/send-sms-v1.md): The HTTP API enables you to send SMS quickly. To send an SMS, simply call the following URL with the relevant parameters appended to the URL, as shown below:
- [Send SMS (v2)](https://developers.textcus.com/overview/editor.md): Here are different ways you can send SMS and OTP to your users through these endpoints.
- [Quick Send](https://developers.textcus.com/overview/editor/quick-send.md): The HTTP API enables you to send SMS quickly. To send an SMS, simply call the following URL with the relevant parameters appended to the URL, as shown below:
- [Send Multiple SMS](https://developers.textcus.com/overview/editor/send-multiple-sms.md): To send multiple SMS at a go, you need to implement a way to loop the contact with foreach or you can just append a comma (,) after every contact number.
- [Sender IDs](https://developers.textcus.com/overview/sender-ids.md): You can add and retrieve sender IDs through this endpoints. Follow the documentation to be able to achieve this.
- [List Senders](https://developers.textcus.com/overview/sender-ids/list-senders.md): A list of all senders may be obtained using this endpoint. For emphasis on specific results, you can add filters based on sender status, either approved or not approved.
- [Add Senders](https://developers.textcus.com/overview/sender-ids/add-senders.md): Adding new sender may be obtained using this endpoint. For emphasis on specific results, you can add the following parameters when creating new sender.
- [Check Sender Status](https://developers.textcus.com/overview/sender-ids/check-sender-status.md): A sender's status may be obtained using this endpoint for emphasis on specific results on sender status and whitelisting status.
- [Account Balance](https://developers.textcus.com/overview/account-balance.md): TextCus Balance API allows you to retrieve your total sms, email & wallet balance information from your account. This endpoint can also help you create notifications when your balance is going low.
- [One Time Password (OTP)](https://developers.textcus.com/overview/one-time-password-otp.md): This endpoint is used for verification process when authenticating a user on your platform.
- [Email SMTP](https://developers.textcus.com/overview/email-smtp.md): This endpoint is used for Email SMTP when sending emails to a user on your platform.
- [USSD Integration](https://developers.textcus.com/overview/ussd-integration.md): Go beyond apps — reach every mobile user offline with our seamless USSD integration.
- [Whatsapp](https://developers.textcus.com/overview/whatsapp.md): TextCus is a messaging platform enabling businesses to communicate with customers via WhatsApp Cloud API, including OTPs, notifications, and support.