Skip to main content
Follow this 3-step guide to authenticate, query configuration, and issue your first programmable virtual card.

Step 1: Get Your API Keys

  1. Sign in to the Merchant Dashboard.
  2. Navigate to Developers → API Keys.
  3. Copy your Merchant ID (mid_lk_...) and Sandbox Secret Key (sk_test_...).

Step 2: Generate an Access Token

Exchange your credentials for a 15-minute Bearer access token:

Step 3: Issue Your First Virtual Card

Use the returned accessToken in the Authorization header to provision a virtual USD VISA card:

Next Steps

Interactive API Reference

Explore and test all virtual card endpoints in the API playground.

Webhooks Integration

Listen to real-time card authorization and transaction events.