# Letterhead API | Letterhead integrations

Canonical: https://www.tryletterhead.com/integrations/api.html

Integrations

# Letterhead API for Letterhead.

Use the API to work with your audience, content, sending and reporting from your own systems, with a typed TypeScript SDK and a command-line tool. API keys are in Settings.

[← All integrations](/integrations.html)

How it connects

Part of Letterhead

Category

Developers

Where to find it

Settings, under API keys

[Letterhead for Developers](/developers.html)

## Questions about Letterhead API.

Where do I connect Letterhead API?

Settings, under API keys.

## Try it on your own newsletters.

We'll walk through your setup with you.

[Book a demo](/lp/test-drive.html)

or [ask us a question](/contact.html)