Skip to main content
curl "https://checkout.noxpay.io/v2/rfq/ref_quote?from_currency=USDT&to_currency=BRL&from_amount=1000" \
  -H "api-key: <key>"

import requests

response = requests.get(
    "https://checkout.noxpay.io/v2/rfq/ref_quote",
    headers={"api-key": "<key>"},
    params={
        "from_currency": "USDT",
        "to_currency": "BRL",
        "from_amount": 1000,
    },
)
print(response.json())

const params = new URLSearchParams({
  from_currency: "USDT",
  to_currency: "BRL",
  from_amount: "1000",
});
const response = await fetch(
  `https://checkout.noxpay.io/v2/rfq/ref_quote?${params}`,
  { headers: { "api-key": "<key>" } }
);
const data = await response.json();

{
  "quote_pair":        "USDT_BRL",
  "rate_d0":           5.050,
  "rate_d1":           5.060,
  "from_amount_d0":    1000.0,
  "to_amount_d0":      5050.0,
  "from_amount_d1":    1000.0,
  "to_amount_d1":      5060.0,
  "settlement_eta_d0": "2026-07-01T19:00:00Z",
  "settlement_eta_d1": "2026-07-02T18:00:00Z",
  "d0_available":      true
}
Calculates a quote without creating a conversion process. Useful for showing indicative rates in your UI before a user commits to starting a conversion.

​
Query parameters

ParameterTypeRequiredDescription
from_currencystringYesSource currency code
to_currencystringYesDestination currency code
from_amountfloatConditionalSource amount (omit for a unit-rate quote)
to_amountfloatConditionalDestination amount
If no amount is provided, the response returns the rate for 1 unit of from_currency.

​
Response 200 OK

FieldTypeDescription
quote_pairstringQuote pair (e.g. USDT_BRL)
rate_d0floatD0 rate
rate_d1floatD1 rate
from_amount_d0floatD0 amount to send
to_amount_d0floatD0 amount to receive
from_amount_d1floatD1 amount to send
to_amount_d1floatD1 amount to receive
settlement_eta_d0stringD0 settlement ETA (RFC 3339)
settlement_eta_d1stringD1 settlement ETA (RFC 3339)
d0_availablebooleanfalse means the desk is closed for D0 — after cutoff or outside operating hours
This endpoint does not return an rfq_id and cannot be accepted — it is for display purposes only. To lock in a rate, call Create Conversion. Status codes: 200 OK, 400 Bad Request, 500 Internal Server Error 
curl "https://checkout.noxpay.io/v2/rfq/ref_quote?from_currency=USDT&to_currency=BRL&from_amount=1000" \
  -H "api-key: <key>"

import requests

response = requests.get(
    "https://checkout.noxpay.io/v2/rfq/ref_quote",
    headers={"api-key": "<key>"},
    params={
        "from_currency": "USDT",
        "to_currency": "BRL",
        "from_amount": 1000,
    },
)
print(response.json())

const params = new URLSearchParams({
  from_currency: "USDT",
  to_currency: "BRL",
  from_amount: "1000",
});
const response = await fetch(
  `https://checkout.noxpay.io/v2/rfq/ref_quote?${params}`,
  { headers: { "api-key": "<key>" } }
);
const data = await response.json();

{
  "quote_pair":        "USDT_BRL",
  "rate_d0":           5.050,
  "rate_d1":           5.060,
  "from_amount_d0":    1000.0,
  "to_amount_d0":      5050.0,
  "from_amount_d1":    1000.0,
  "to_amount_d1":      5060.0,
  "settlement_eta_d0": "2026-07-01T19:00:00Z",
  "settlement_eta_d1": "2026-07-02T18:00:00Z",
  "d0_available":      true
}