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Welcome

Welcome to the ECSEND Developer API. This API allows you to programmatically:
  • Send SMS messages
  • Manage contacts and address books
  • Create and manage SMS campaigns
  • Check your account balance

Authentication

All API endpoints are authenticated using an API Key via the X-Api-Key header.
X-Api-Key: your_api_key_here

View OpenAPI Specification

Download the OpenAPI Specification file