PHP Quick Start

Install

{
  "require": {
    "sixmm/agent-sdk": "VERSION_PROVIDED_BY_6MM"
  }
}

Package access

6MM provides the approved Composer package name, repository, and version during partner onboarding. The package should not be assumed to exist on public Packagist.

Before you start

• Confirm the Agent API base URL with 6MM.
• Load apiSecret from environment variables or secret management.
• Keep SDK usage inside backend services only.
• Prepare idempotent handling for transfer and webhook flows.

Initialize client

<?php
use Sixmm\Agent\AgentClient;
use Sixmm\Agent\AgentConfig;
$client = new AgentClient(new AgentConfig(
    'https://agent-api.6mm.com',
    'AGENT001',
    getenv('AGENT_API_SECRET') ?: '',
    'USDT'
));

Backend only

The PHP SDK signs Agent API requests and must not be exposed through public source code or frontend runtime environments.

Example: transfer funds in

$response = $client->transfer([
    'agentOrderNo' => 'AGT-ORDER-1001',
    'agentUserId' => 'agent-user-001',
    'direction' => 'IN',
    'currency' => 'USDT',
    'amount' => '10.00',
]);

Use decimal strings for amounts and preserve the original agentOrderNo when retrying or querying transfer status.

Next steps