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Guides
API Reference

Payin

Getting Started

Overview

Service Domain

Request and Response

API Definition

Create Payment

Query Payment Status

Create Refund

Query Refund Status

Get Settlement Files

Get Exchange Rate Quote

Webhook

Webhook

Transaction Status

Supported Blockchains and Currencies

Payment Status

Refund Status

Error Code Description

Payout

Getting Started

Overview

Service Domain

Request and Response

API Definition

Fiat Withdraw

Query Wallet Address

Query Wallet Balance

Withdraw Apply

Withdraw Detail

Batch Withdraw Apply

Batch Withdraw Query

Webhook

Webhook

Transaction Status

Withdraw Status

Batch Status

Supported Chains and Currencies

Error Codes

QR Pay

Getting Started

Overview

Service Domain

Request and Response

API Definition

Scan QR Code

Create Payment Order

Payment Result Notification

Query Order Status

Query Supported QR Codes

Get Payment Code

Callback

Notify Paydify (paynotify)

Status

Order Status

Payment Status

Fail Type

Common

Signature

Signature Algorithm

Payment Status

Status Value Description
INIT Payment initiated successfully, waiting for user payment
PENDING Payment in progress, waiting for blockchain confirmation
PAID Payment successful, funds confirmed, final state
FAILED Payment failed, final state
REFUNDED Refunded, final state

Note: state is returned as the uppercase enum name by default for newly onboarded merchants (e.g. PAID). A small set of early merchants continue to receive lowercase values (e.g. paid) for backward compatibility and are tracked on a Paydify-side allowlist for migration. Contact Paydify if you have questions.

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