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

# FX quotes

> Lock a rate for a foreign-currency wire.

Create a quote for the exact amount and currency the beneficiary should
receive with `POST /v2/transfers/international-wire/fx-quotes`. This create
request requires `X-Idempotency-Key`.

```json theme={null}
{
  "fromAccount": "subaccount_operations123",
  "amount": { "amount": 10000, "currency": "GBP" }
}
```

An available quote includes the estimated USD debit, effective exchange rate,
and authoritative expiration. `estimatedDebit.amount` is USD cents.
`exchangeRate` is the foreign-currency units received per USD, including the
FX fee:

```json theme={null}
{
  "id": "fx_rate_quote_123",
  "status": "available",
  "amount": { "amount": 10000, "currency": "GBP" },
  "estimatedDebit": { "amount": 12734, "currency": "USD" },
  "exchangeRate": "0.7853",
  "createdAt": "2026-08-18T01:00:00.000Z",
  "expiresAt": "2026-08-18T01:15:00.000Z",
  "updatedAt": "2026-08-18T01:00:00.000Z"
}
```

Pass `id` as `internationalWire.fxQuoteId` before `expiresAt`. The wire
must use the quote's exact `amount`; changing either the amount or currency
requires a new quote. An expired or already-used quote cannot price another
wire.

Retrieve the current quote with
`GET /v2/transfers/international-wire/fx-quotes/{fxQuoteId}`.

USD international wires do not use FX quotes.