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Prediction markets API

What did this crypto up-or-down window open and close at?

The reference open ("price to beat") and close of one 5-minute or 1-hour crypto window, e.g. BTC 14:30–14:35; the close is null until the window settles.

GET/api/external/prediction/prediction-crypto-window-price
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What it returns

Prediction venues list "up or down" markets on a crypto asset over fixed windows; this is the reference price such a window opens and closes at. Name the window by asset, interval and start (unix seconds on the interval's grid). The two intervals use different references: 5m samples a per-second reference price stream at the window's two edges; 1h is the hour's exchange candle open and close (2 decimals), measured about 0.02% from that stream. closePrice is null until the window is settled: a live window has its openPrice only, a window that has not started has neither. 15-minute windows are not offered here, because the only reference for them answers the containing hour; read a 15-minute window's first and last points from GET /prediction/prediction-crypto-window-price-history instead. 5-minute windows are answered about 25 days back; older ones fail. No chain and no subject.

Chains

This endpoint is not tied to a chain: it takes no chain in its request.

Request

Send your key in the x-dex-data-key header. Replace each <placeholder> with a real value.

curl -H "x-dex-data-key: $DEXDATA_API_KEY" \
  "https://api.dexdata.io/api/external/prediction/prediction-crypto-window-price?asset=BTC&interval=5m&start=<start>"
Parameters
ParameterDescription
asset

query · string · required

The crypto asset the window is on, uppercase.BTCETHSOLXRPDOGEBNBHYPE
interval

query · string · required

The window length. 5m or 1h; 15-minute windows are served by the price-history endpoint.5m1h
start

query · integer · required

The window start, unix seconds. Must sit on the interval's grid (a multiple of 300 for 5m, 900 for 15m, 3600 for 1h); the window ends one interval later.

Response fields

A JSON response. Every field is always present; null means the value could not be established, never zero.

Response fields of What did this crypto up-or-down window open and close at?
FieldTypeDescription
assetstringThe asset, as requested.
intervalstringThe window length, as requested.
windowStartstringThe window start, ISO 8601 UTC.
windowEndstringThe window end (start plus one interval), ISO 8601 UTC.
openPricenumber | nullThe reference price at the window start (the "price to beat"), USD. Null when the window has not started.
closePricenumber | nullThe reference price at the window end (the final price), USD. Null until the window is settled — a running price of a live window is never published here.
settledbooleanTrue when the window is over and both prices are final.
asOfstringWhen the prices were read, ISO 8601 UTC.

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