One Email API. Every Provider.

Connect your application to Gmail, Microsoft Exchange,, Office 365, Yahoo! Mail and the rest in minutes.


Sync Email From Any Inbox

The Nylas Universal Email API gives you a secure, reliable connection to your user’s inboxes. Sync historic and live email data into your application in real-time.

Get bi-directional email sync and full CRUD (create, read, update, delete) capabilities with Gmail, Microsoft Exchange,, Office 365, Yahoo! Mail, AOL, IMAP, and the rest with just a few lines of code.

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Connect to Every Inbox, Securely

Security is our #1 priority — but don’t just take our word for it. Nylas is SOC 2 Certified, Privacy Shield certified, GDPR compliant, and HIPAA and FINRA ready. Data from every email you sync is encrypted and isolated with multi-level permission checks.

We give you full control over what data is accessed so your customers are always secure, and your product is always compliant.

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  • World-Class Security Certifications
  • Token Management
  • Whitelisted IPs
  • Data Encryption
  • Granular Authentication Scopes
  • Gated Permission Checks
nylas email api for developers

An Email API Developers Can Trust

Get reliable, scalable performance whether you are syncing 100 or 100 million emails. Nylas Email API versions don’t introduce breaking changes, and any updates required by service providers (like Google OAuth) are managed for you.

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How It Works


Ready to Start Building?


How do I get started with the Nylas Email API?

You can create a developer account with Nylas and sync up to 10 email accounts from different users for free using the Nylas Email API here.

Where do I access the Nylas Email API key?

You can access the Email API key directly from your Nylas dashboard. One key unlocks access to any email provider in the world! Exciting, we know.

How do my users activate email sync?

Your users can kick-start full email sync simply by granting Nylas access to their account. Your users will input their credentials and then be redirected back to your application.

What kinds of companies use the Nylas Email API?

Learn how customers in the CRM, ATS, automotive, finance and legal industries, and more use the Nylas Email API on our case studies page.

What languages can I use to connect to the Nylas Email API?

We provide SDKs that make it easy to integrate your app using Python, Node.js, Java, and Ruby, or you can use a different language of choice to connect to our RESTful API.

How is the Email API secured?

The Nylas Email API encrypts 100% of your data with enterprise-grade security standards. In addition, Nylas is GDPR compliant, SOC 2 compliant, and HIPAA and FINRA ready.

What are the pricing options for the Nylas Email API?

You can sync up to 10 user’s email accounts for free for 30 days. After that, pricing is based on the number of accounts you have synced; you can view our pricing page for more details.

Additional questions about building your email integration?

Check out our comprehensive Getting Started guide.