Introduction
Welcome to the Lunar Send API — the backend power source behind the
Lunar Send CRM. This RESTful API gives you full programmatic access
to your contacts, messaging workflows, and campaign analytics.
Whether you're integrating with your own platform, building
automation scripts, or syncing external tools, this API is built to
support scale, speed, and reliability.
Base Url
All Calls to the API should be made to the base URL:
Authentication
All API calls require authentication via an API key. You can find
your API key in the settings section of your Lunar Send account.
Include the key in the header as follows:
Rate Limits
The maximum number of requests allowed per second is 2. If you
exceed this your requests will be throttled and you will receive a
429 Too Many Requests response.
Data Format
All requests and responses use JSON format. Ensure your Content-Type
header is set to application/json.
Error Handling
400 Bad Request
- Invalid request format or missing fields
401 Unauthorized
- Invalid API key
403 Forbidden
- Access to resource denied
404 Not Found
- Resource not found
429 Too Many Requests
- Rate limit exceeded
500 Server Error
- Rate limit exceeded
Support
For help or questions about the API, please contact our support team
at support@lunarsend.com
