API v1 Overview

API v1 is the stable, legacy version of the EasySlip Developer API. It includes TrueMoney Wallet verification and QR code generation features not available in v2.

Base URL

https://developer.easyslip.com/api/v1

Key Features

• Bank Slip Verification - Verify Thai bank transfer slips
• TrueMoney Wallet Verification - Verify TrueMoney wallet transfers
• QR Code Generation - Generate PromptPay and merchant QR codes
• Duplicate Detection - Detect duplicate slip submissions

Response Format

All responses follow this structure:

Success Response:

{
  "status": 200,
  "data": { ... }
}

Error Response:

{
  "status": 400,
  "message": "error_code"
}

Endpoints

Endpoint	Method	Description
/verify	GET	Verify bank slip by payload
/verify	POST	Verify bank slip by image/URL/Base64
/verify/truewallet	POST	Verify TrueMoney wallet
/me	GET	Get application information
/qr/generate	POST	Generate QR code

Authentication

All requests require a Bearer token:

Authorization: Bearer YOUR_API_KEY

See Authentication Guide for details.

Quick Examples

Verify Bank Slip by Payload

curl -X GET "https://developer.easyslip.com/api/v1/verify?payload=YOUR_QR_PAYLOAD" \
  -H "Authorization: Bearer YOUR_API_KEY"

Verify Bank Slip by Image

curl -X POST https://developer.easyslip.com/api/v1/verify \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@/path/to/slip.jpg"

Get Application Info

curl -X GET https://developer.easyslip.com/api/v1/me \
  -H "Authorization: Bearer YOUR_API_KEY"

Error Codes

Code	HTTP Status	Description
unauthorized	401	Invalid or missing API key
access_denied	403	IP not in whitelist
application_expired	403	Subscription expired
application_deactivated	403	Application deactivated
quota_exceeded	403	API quota exceeded
invalid_payload	400	Invalid QR payload
duplicate_slip	400	Slip already verified
slip_not_found	404	Slip not found
server_error	500	Internal server error

Rate Limits

Requests are limited based on your subscription plan. Check your quota using the /me endpoint.

Upgrading to v2

For new integrations, consider using API v2 for:

• Standardized response format
• Account matching features
• Amount validation
• Better error handling

See Version Comparison for migration details.

Next Steps

• Me Endpoint - Get application info
• Bank Slip Verification - Verify bank slips
• TrueMoney Verification - Verify TrueMoney transfers
• QR Code Generation - Generate QR codes