Rate Sparklines

A year of weekly closing rates for every currency pair — about 52 points each, just enough to draw a small trend line (a sparkline) beside each row of a rates table.

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

const res = await fetch("https://api.bytetree.io/api/rates/sparklines", {
  headers: { "Authorization": "Bearer YOUR_API_KEY" },
});
const body = await res.json();

import requests

res = requests.get(
    "https://api.bytetree.io/api/rates/sparklines",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
)
body = res.json()

{
  "data": {
    "GBPUSD": [1.2545, 1.2567, 1.2589, 1.2601, 1.2615, 1.2631, 1.2650, 1.2680, 1.2710, 1.2731],
    "EURUSD": [1.0820, 1.0845, 1.0867, 1.0890, 1.0912, 1.0935, 1.0950, 1.0970, 1.0985, 1.1002],
    "JPYUSD": [0.006658, 0.006647, 0.006632, 0.006622, 0.006616, 0.006607, 0.006601, 0.006592, 0.006585, 0.006579]
  }
}

Query Parameters

This endpoint takes no query parameters other than format; any other parameter returns 400.

Response

Each key is a currency pair code. Each value is an array of number values representing the closing price for that ISO week, ordered chronologically (oldest first).

Notes

• Returns approximately 52 data points per pair (one per ISO week)
• Weekend data and carry-forward records are excluded
• The last value in each array is the most recent weekly close
• Useful for rendering sparkline charts alongside a rates table