Email API for developers

Deliver transactional emails, run marketing campaigns, and handle replies from one platform. Reach the inbox reliably with Bird SDKs, CLI, and MCP.

Trusted by engineering and product teams
shipping at global scale.

From prompt to delivered.

Send a welcome email or order receipt and follow its status from acceptance to delivery. When you want the broader picture, pull seven-day delivery rates and daily bounce counts in the same workflow.

Your domain.
Your reputation.

Verify your domain and separate transactional and marketing traffic to protect your sender reputation. Bird automatically suppresses addresses after a hard bounce.

Catch integration issues early and ship with confidence.

Simulate failure paths in the sandbox, verify signed webhooks, and retry timed-out requests without sending duplicates.

Personalize published templates with live data from your app.

Build templates in React Email, or publish reusable templates your team can edit without a code deploy. Personalize every message with live data from your app or contact profiles.

Every email. A clearer picture.

Track delivery rates in real time and see the exact reason an email bounced. Use Inbox Insights to check whether your messages are landing in the primary inbox or spam across major providers.

Receive customer replies and
route them into your app.

Route replies from your domain or a forwarding address straight into your app, complete with message content and attachments. Or give your AI agent its own mailbox to follow the conversation and reply.

Scale without losing control.

Separate production and sandbox traffic into dedicated workspaces, scope API keys to the exact channels each service or agent needs, and track permission changes in the audit log.

Go further.
With Email.

Transactional sending, marketing campaigns, and deliverability tools in one place.

Start with one channel and expand as you grow.

Add new channels, verification, and connectivity in the same workspace, using the same API keys, webhooks, and SDKs.

Your next idea. Ready to connect.

Start building with Bird in minutes.