</>
}
Live Sandbox Environment

API
Documentation

Integrate with Retagly's ESL system using our powerful REST API. Test live calls and see real-time updates on the display preview.

✓Rate Limited
✓CORS Enabled
✓JSON Response

Interactive Playground

Edit the fields below and click "Try it Live" to see the ESL update in real-time

Live

Product

Organic Apples

$12.99

per lb

SKU: DEMO-0012/26/2026
RETAGLY ESL-2.9 • Demo Unit

Request Body

curl -X POST https://sandbox.retagly.com/api/esl/update \
  -H "Content-Type: application/json" \
  -d '{"price":"12.99","product_name":"Organic Apples","unit":"lb"}'

API Reference

Quick reference for all available endpoints and parameters

POST/api/esl/update

Update ESL display with new product information

Params: price, product_name, unit
GET/api/esl/example

Get example request and response format

Params: none
GET/api

Get API information and available endpoints

Params: none
GET/health

Check API health status

Params: none

Error Codes

VALIDATION_ERROR

Invalid input parameters

MISSING_FIELDS

Required fields not provided

RATE_LIMIT_EXCEEDED

Too many requests

SERVER_ERROR

Internal server error

Ready to Integrate?

Contact our team to get your production API credentials and start integrating Retagly ESL with your POS system.

Get API Access→