API Reference
The Sequenzy API lets you programmatically manage subscribers, send emails, trigger events, and integrate email marketing into your application.Base URL
All API requests are made to:https://api.sequenzy.com/v1 are still accepted as an alias.
Authentication
All endpoints require an API key in theAuthorization header:
Authentication Guide
Learn more about API authentication
Response Format
All responses return JSON with a consistent structure.Success Response
Error Response
HTTP Status Codes
Available Endpoints
Subscribers
Manage your subscriber list.Tags
Segment subscribers with tags.Events
Track subscriber actions and trigger automations.Sequences
Create and manage automation sequences.Generation
Generate draft email content for review.Transactional Emails
Send programmatic emails.Auto-Creation Behavior
The API automatically creates resources when they don’t exist:
This makes integration seamless—you don’t need to pre-configure anything in the dashboard.
Example
Rate Limiting
The API is rate limited to protect service stability:- Standard limit: 100 requests per minute per API key
- Burst limit: 20 requests per second
429 Too Many Requests response with a Retry-After header.
Pagination
List endpoints support pagination:Example
Response
Error Handling
Common Error Codes
Example Error Response
SDK & Libraries
Node.js / TypeScript SDK (Recommended)
Install the official Sequenzy SDK for the best developer experience:TypeScript/JavaScript (Fetch API)
If you prefer to use the REST API directly:Python
cURL
Need Help?
- Email: nic@sequenzy.com
- Twitter: @nikpolale