> ## Documentation Index
> Fetch the complete documentation index at: https://docs.openfi.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported Rails

> Capabilities by currency.

**USD**

One-time payments, mandates, session keys, and debit pulls.

**CAD**

One-time payments. Use [`POST /v1/payments`](https://docs.openfi.co/api-reference/payments/create-payment).

**GBP**

Payers approve each payment with their bank. Recurring pulls are available with supported banks.


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