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

# Whatsapp API

- [Sandbox (Test API Key)](https://docs.oneroute.io/whatsapp-api/sandbox-test-api-key.md): OneRoute provides a developer-friendly test environment to check out the usage of the WhatsApp API. Through the test channel, you can test sending messages and templates and receive a webhook.
- [Getting Started](https://docs.oneroute.io/whatsapp-api/getting-started.md): Use OneRoute WhatsApp API in Production
- [Endpoints](https://docs.oneroute.io/whatsapp-api/endpoints.md)
- [Fetch Channels](https://docs.oneroute.io/whatsapp-api/endpoints/get-whatsapp-channels.md)
- [Fetch Channel Templates](https://docs.oneroute.io/whatsapp-api/endpoints/fetch-channel-templates.md)
- [Send Template Message](https://docs.oneroute.io/whatsapp-api/endpoints/send-template-message.md)
- [Send Campaign Message](https://docs.oneroute.io/whatsapp-api/endpoints/send-campaign-message.md)
- [Send Session Message](https://docs.oneroute.io/whatsapp-api/endpoints/send-session-message.md)
- [FAQ](https://docs.oneroute.io/whatsapp-api/faq.md): OneRoute WhatsApp API - Frequently Asked Questions