A one-second FX data API

One-second OHLC candles for 46 currency pairs, built from the live quote and read by REST with a cursor, with the live bid and ask on a WebSocket.

What a one-second bar is

Each second with a quote is a bar: the open, high, low and close of the bid in that second. A second without a quote has no bar, so a quiet pair has gaps that are not outages. Each pair's page gives its measured one-second activity.

How far back

One-second history since 06.09.2026, kept 180 days rolling, the same on every paid plan. Minute bars and above go back further; each pair's page gives its own date.

Live

On the stream, the live bid and ask, and candles as they close, from one second up to one day.

What it costs

Sold by capacity, from CHF 500 a month: the monthly peak of simultaneous connections, and slices of 1 000 bars. A paid plan never refuses a connection.

Facts as of 03.10.2026.

# 1. your server exchanges the key for a short-lived token
curl -s https://api.adona-robot.com/v1/tokens \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer adk_live_...' \
  -d '{"end_user_id":"u-42"}'

# 2. the token reads candles
curl -s 'https://api.adona-robot.com/v1/candles?symbol=EURUSD&timeframe=S1&limit=1000' \
  -H 'Authorization: Bearer <token>'