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

Unsend is the best open source product to send emails

", text: "Unsend is the best open source product to send emails", }); ```