Foundations

Typography

DM Sans brings compact character to headings, Inter keeps product and documentation copy quiet and readable, and Source Code Pro identifies code, IDs, and technical values.

Roles

Choose the role that matches the content structure. Never change semantic heading order to get a visual size.

Display

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Email infrastructure that feels effortless

Page title

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Deliverability overview

Section title

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Sending domains

Heading

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Domain reputation

Body

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Build, send, and understand every message from one calm workspace.

Label

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Requests delivered

Caption

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Updated a few seconds ago

Overline

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Deliverability

Code

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POST /api/v1/email

Documentation rhythm

Docs use one page title, section titles for major chapters, headings for anchored topics, and body-muted for supporting copy.

API · v1

Send an email

Create a verified sending domain, generate an API key, then make your first request.

Before you begin

Use a verified domain and give the key only the capabilities required by your application.