> For the complete documentation index, see [llms.txt](https://api.koreroplatforms.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api.koreroplatforms.io/channel-api.md).

# Channel APIs

- [SMS APIs](https://api.koreroplatforms.io/channel-api/sms-apis.md)
- [Single Message to Single MSISDN API](https://api.koreroplatforms.io/channel-api/sms-apis/single-message-to-single-msisdn-api.md)
- [Single Message to Multiple MSISDN API](https://api.koreroplatforms.io/channel-api/sms-apis/single-message-to-multiple-msisdn.md)
- [Multiple Messages to Multiple MSISDN API](https://api.koreroplatforms.io/channel-api/sms-apis/multiple-messages-to-multiple-msisdn-api.md)
- [Voice APIs](https://api.koreroplatforms.io/channel-api/voice-apis.md)
- [Send an outbound call](https://api.koreroplatforms.io/channel-api/voice-apis/send-an-outbound-call.md)
- [Send Text to Voice OBD API](https://api.koreroplatforms.io/channel-api/voice-apis/send-text-to-voice-obd-api.md)
- [Email APIs](https://api.koreroplatforms.io/channel-api/email-apis.md)
- [Send Email API](https://api.koreroplatforms.io/channel-api/email-apis/send-email-api.md)
- [WhatsApp API](https://api.koreroplatforms.io/channel-api/whatsapp-api.md)
- [Template Message - Text](https://api.koreroplatforms.io/channel-api/whatsapp-api/push-transactional-notification-api.md)
- [Template message - document](https://api.koreroplatforms.io/channel-api/whatsapp-api/two-way-whatsapp-message-api.md)
- [Template message - Image](https://api.koreroplatforms.io/channel-api/whatsapp-api/template-message-image.md)