# Make API > Make builds newsletter and SMS software for marketing and communication. Pick a service to browse its reference and copy ready-made requests in your programming language. Note: Newsletter and Make Sender are separate products and require separate subscriptions and API keys. Please contact support if you have any questions. All calls use Basic HTTP Authentication. Use your Userid as the username and your APIKey as the password. ## Get started - [Get started with the Make API](https://apidocs.make.as/index.md): Authentication, an example request and the API overview ## Newsletter Contacts, newsletters and sendings in the Make newsletter tool. - [Subscribers API](https://apidocs.make.as/subscribers_api.md): Keep your contacts in sync with Make. Create and update subscribers, organise them in lists and tags, and read their opens, clicks and unsubscribes. - [Newsletter API](https://apidocs.make.as/newsmail_api.md): Send newsletters built in Make, trigger recurring actions, and fetch delivery and engagement statistics for each sending. - [Sender API](https://apidocs.make.as/sender_api.md): Start newsletter sendings from your own system and register webhooks for their events. Uses its own API key. ## Make Sender E-mail from your own domains, over REST or SMTP. - [Make Sender API](https://apidocs.make.as/make_sender.md): Send e-mail from your own verified domains. The REST API covers domains, mailing lists, recipients, suppressions and sending messages. - [SMTP](https://apidocs.make.as/smtp.md): Use Make Sender from any SMTP client or library instead of the REST API. - [Webhooks](https://apidocs.make.as/webhooks.md): Get notified in your own system when e-mail you sent is delivered, bounces, or is opened or clicked. ## OpenAPI specs - [Subscribers API](https://apidocs.make.as/api-docs/public/subscribers): OpenAPI 3 spec - [Newsletter API](https://apidocs.make.as/api-docs/public/newsletters): OpenAPI 3 spec - [Make Sender API](https://apidocs.make.as/api-docs/public/make_sender): OpenAPI 3 spec - [Sender API](https://apidocs.make.as/api-docs/public/sender): OpenAPI 3 spec ## Optional - [Support](https://apidocs.make.as/support.md): How to contact support - [All pages in one file](https://apidocs.make.as/llms-full.txt)