Overview

This documentation describes the public APIs of the 1SIMPLE1 platform for messaging (SMS, Email, and WhatsApp), authentication with API keys, quotas, and error handling.

What you can build

• Send transactional and marketing SMS
• Send emails (single or bulk) with HTML support and SMTP configuration
• Send WhatsApp messages (single or bulk) using authenticated devices
• Manage WhatsApp devices (create, get QR, check status, set default)
• Track quota usage and handle rate limits

Core concepts

• Authentication: All endpoints require a valid API key. Keys are service-scoped (sms/email/whatsapp) and must be active and not expired.
• Multi-tenant: Every request runs in the context of your company determined by the API key.
• Quotas: Monthly quotas per service; usage is tracked on the company.
• Errors: Consistent JSON format with clear error codes (e.g., invalid_api_key, quota_exceeded).

Quick links

• Getting Started
• Authentication
• SMS API
• Email API
• WhatsApp Devices
• WhatsApp API
• Quotas & Rate Limits
• Errors
• Code Examples
• Webhooks

Environment

Production: https://prosendi.com/api
Development: http://localhost:8000/api

Support

• Contact: [email protected]
• Status page: Check service availability before reporting incidents