Getting Started

Elaypay provides a RESTful API for server-to-server integration. All API endpoints use HMAC-SHA256 signature authentication for secure access.

Base URL

https://api.elaypay.app/api/v1/

Authentication

Every API request must include four headers:

Header	Description
X-Api-Key	Your API key identifier (sk_live_xxx)
X-Signature	HMAC-SHA256 signature of the request
X-Timestamp	Unix timestamp in seconds
X-Nonce	Unique request identifier (UUID)

See the Authentication Guide for signature computation details.

Quick Example

curl -X GET https://api.elaypay.app/api/v1/wallets \
  -H "X-Api-Key: sk_live_xxx" \
  -H "X-Signature: <computed_signature>" \
  -H "X-Timestamp: 1709337600" \
  -H "X-Nonce: 550e8400-e29b-41d4-a716-446655440000"

Response Format

All responses follow a standard envelope:

200 OK

{
  "version": "1.3.0",
  "timestamp": 1709337600000,
  "success": true,
  "code": "2000",
  "message": "SUCCESS",
  "data": {
    "bizId": "ws_abc123",
    "workspaceName": "My Workspace"
  }
}

Field	Type	Description
version	string	API version
timestamp	number	Response timestamp (epoch ms)
success	boolean	true for 2xx, false for errors
code	string	Machine-readable status code
message	string	Human-readable message
data	object	Response payload (null on error)

Error Codes

Error codes are organized by domain prefix. See the Error Handling Guide for the full catalog.

Prefix	Domain
S	System / Validation
W	Wallet
T	Transfer
GA	Gateway Auth

Pagination

List endpoints support pagination via query parameters:

Parameter	Default	Description
page	0	Page number (0-based)
size	20	Items per page (max 100)
sort	varies	Sort expression (e.g., createdAt,desc)

See the Pagination Guide for details.

Next Steps

• Authentication Guide — Set up HMAC-SHA256 signing
• API Reference — Browse all endpoints
• Error Handling — Handle errors correctly