SMTP & API

API Email Sending

Send emails programmatically through OutSends REST API. Trigger campaigns, send individual messages, and integrate email sending directly into your applications.

API Sending Programmatic Email REST API

How it works

Get started with api email sending in a few simple steps.

Get API key

Generate an API key from your OutSends workspace settings.

Review API docs

Read the API documentation for authentication, endpoints, and request formats.

Build integration

Use the API to trigger campaigns, add contacts, or send individual emails.

Monitor delivery

Track delivery status and engagement through API responses and webhooks.

Why OutSends for api email sending

Everything you need, integrated in one workspace.

  • Automate email sending from your applications and workflows
  • Trigger campaigns from external events and webhooks
  • Integrate with your existing tech stack seamlessly
  • Full programmatic control over email delivery

Related features

Explore more capabilities that work alongside api email sending.

Frequently asked questions

What can I do with the OutSends API?

You can send emails, manage campaigns, add and update contacts, trigger sequences, and retrieve analytics data programmatically.

Does OutSends provide SDKs?

Yes, OutSends provides SDKs for popular languages including JavaScript, Python, PHP, and Ruby.

How do I authenticate API requests?

API requests are authenticated using API keys passed in the Authorization header. Keys can be scoped to specific permissions.

Start Free

Ready to try api email sending?

Create a workspace, connect a sender, and launch your first campaign \u2014 free, no credit card.