# useSend SDK ## Prerequisites - [useSend API key](https://app.usesend.com/dev-settings/api-keys) - [Verified domain](https://app.usesend.com/domains) ## Installation ### NPM ```bash npm install usesend ``` ### Yarn ```bash yarn add usesend ``` ### PNPM ```bash pnpm add usesend ``` ### Bun ```bash bun add usesend ``` ## Usage ```javascript import { UseSend } from 'usesend'; const usesend = new UseSend('us_12345'); // for self-hosted installations you can pass your base URL // const usesend = new UseSend("us_12345", "https://app.usesend.com"); usesend.emails.send({ to: 'hello@acme.com', from: 'hello@company.com', subject: 'useSend email', html: '
useSend is the best open source product to send emails
', text: 'useSend is the best open source product to send emails', }); ```