Documentation

Explore practical guides, resources, and examples for building payment products with Cairn.

Get started with Cairn

Choose a card program that fits the operating model of your business.

▰

Flexible debit cards for everyday company spending.

▰

Unsecured charge cards designed for growing businesses.

▰

Credit programs backed by business collateral.

▰

Purpose-built cards for vehicles and field operations.

▰

Single-use controls for vendor and invoice payments.

▰

Multi-use debit products for individual customers.

▰

Flexible prepaid cards with configurable controls.

▰

Reusable cards for wages, stipends, and reimbursements.

mutation CreateCardProduct {
  createCardProduct(input: $input) {
    id
    name
  }
}

Authenticate and make precise calls to the Cairn GraphQL API.

Generated operations and types from the complete schema.

Interactive tooling for testing queries and inspecting results.