Rate History

The daily history of one exchange rate — for example, how many US dollars one British pound bought on each day. Ask for a date range with from and to, or leave them out for everything on record.

curl "https://api.bytetree.io/api/rates/GBPUSD?from=2026-01-01&to=2026-01-31" \
  -H "Authorization: Bearer YOUR_API_KEY"

const res = await fetch("https://api.bytetree.io/api/rates/GBPUSD?from=2026-01-01&to=2026-01-31", {
  headers: { "Authorization": "Bearer YOUR_API_KEY" },
});
const body = await res.json();

import requests

res = requests.get(
    "https://api.bytetree.io/api/rates/GBPUSD?from=2026-01-01&to=2026-01-31",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
)
body = res.json()

{
  "pair": "GBPUSD",
  "count": 31,
  "data": [
    {
      "date": "2026-01-02T00:00:00.000Z",
      "open": 1.2520,
      "high": 1.2560,
      "low": 1.2510,
      "close": 1.2545
    },
    {
      "date": "2026-01-03T00:00:00.000Z",
      "open": 1.2545,
      "high": 1.2590,
      "low": 1.2535,
      "close": 1.2567
    }
  ]
}

curl https://api.bytetree.io/api/rates/GBPUSD \
  -H "Authorization: Bearer YOUR_API_KEY"

Path Parameters

Query Parameters

Dates must be real calendar dates in YYYY-MM-DD form, or the request is a 400 — see Value validation.

Response

Each data point:

Notes

• The pair parameter is case-insensitive (gbpusd and GBPUSD both work)
• Without from/to, returns all available history for the pair
• Data is sorted chronologically (oldest first)
• Dates with no feed row — weekends, holidays, or a day the feed missed — are filled with carry-forward rows: open, high, low and close all equal the previous close. This endpoint does not return source; Latest Rates does, for the latest row
• Returns an empty data array if the pair code is not found