Introduction

Welcome

All API clusters are hosted on managed instances with SSL/TLS 1.3 encryption.

Base URL: https://api.syntr.io/api/v1/email-marketing

Content-Type: application/json

Unique access tokens generated in your dashboard. Enforces granular module permissions.

X-API-Key: [YOUR_KEY]

Code	Label	Description
`200`	Request OK	Operation completed successfully.
`401`	Invalid Token	API key is missing or has been expired.
`403`	Access Denied	Operation blocked due to scope restrictions.
`422`	Payload Error	Invalid JSON structure or business logic failure.