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API Reference

Welcome to the Chronos API reference documentation. Here you'll find detailed information about all available endpoints, request/response formats, and code examples.

Base URLs​

Our API is available in two environments:

EnvironmentBase URL
Sandboxhttps://apisandbox.eonwms.com
Productionhttps://api.eonwms.com
tip

Always start your integration using the Sandbox environment. Contact our support team when you're ready to move to production.

Authentication​

All API requests require authentication using a Bearer token. You can obtain your token using the Get Authentication Token endpoint.

Authorization: Bearer YOUR_TOKEN_HERE

API Sections​

Our API is organized into the following sections:

🔐 Authorization​

Manage authentication and obtain access tokens.

📦 Orders​

Create, track, and manage fulfillment orders.

  • Create orders
  • Track order status
  • Get order information
  • Delete orders
  • Calculate shipping rates
  • Download labels

🏭 Warehouses​

Query available warehouses and their capabilities.

📊 Products​

Monitor product inventory levels across warehouses.

Request Format​

All requests must include the following headers:

Content-Type: application/json
Accept: application/json
Authorization: Bearer YOUR_TOKEN_HERE

Response Format​

All responses are returned in JSON format with the following structure for successful requests:

{
  "status": "success",
  "data": {
    // Response data here
  }
}

Error responses follow this format:

{
  "fault": {
    "error": "error_code",
    "error_description": "Human readable error message"
  }
}

HTTP Status Codes​

Status CodeDescription
200Success - Request completed successfully
401Unauthorized - Invalid or missing authentication token
404Not Found - Resource not found
422Unprocessable Entity - Validation error
500Internal Server Error - Something went wrong on our side

Rate Limits​

API requests are subject to rate limits:

  • Sandbox: 60 requests per minute
  • Production: Varies by plan (check your contract)

Rate limit information is included in response headers:

  • X-RateLimit-Limit: Maximum requests per minute
  • X-RateLimit-Remaining: Remaining requests
  • X-RateLimit-Reset: Time when the limit resets

Need Help?​