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

# Introduction

**Thanks for choosing the Loop Loopup product!**

Here you can find detailed documentation describing how to integrate this API into your website or backend server. Non-API related answers can be found in the [Helpdesk](https://looplookup.com/help/).

If you will have issues with integration or can't find answers in the API doc or Helpdesk, please feel free to contact [support](https://looplookup.com/contact-us).

1. [Prepare Credentials](/lookup-api/credentials.md)
2. [Lookup request](/lookup-api/send-message.md)
3. [Callbacks](/lookup-api/bulk-lookup/webhooks.md)
4. [Statuses](/lookup-api/bulk-lookup/statuses.md)