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

# API documentations

- [Zapier Intergation](https://help.murlist.com/api-documentations/zapier-intergation.md)
- [API Authentication](https://help.murlist.com/api-documentations/api-authentication.md): How to authenticate all API requests
- [Email Validation API](https://help.murlist.com/api-documentations/email-validation-api.md): Validate email using the API
- [Campaign API](https://help.murlist.com/api-documentations/campaign-api.md)
- [List all campaigns](https://help.murlist.com/api-documentations/campaign-api/list-all-campaigns.md): How to list all campaigns on a workspace
- [Add prospect to campaign](https://help.murlist.com/api-documentations/campaign-api/add-prospect-to-campaign.md): Add new prospect to an existing campaign