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/api/p3/premium-index/klines
GETAvailable

Premium-index candles

Premium-index candles (live upstream proxy)

GET/api/p3/premium-index/klines
Single venue: the premium-index candles of Binance, requested when the endpoint is called. For basis across 21 venues use `/api/sd/basis`.

Request

Query parameters

NameTypeRequiredDefaultAllowed valuesDescription
symbolstringOptionalBTCUSDT—Contract symbol (e.g. BTCUSDT). Example: BTCUSDT
intervalstringOptional1m1m, 5m, 15m, 1h, 4h, 1dCandle interval. Example: 1h

Example request

curl -s "https://www.coinboss.com/api/p3/premium-index/klines?symbol=BTCUSDT&interval=1h"

Response fields

The field table is generated from real responses, so it lists exactly what the endpoint returns. Paths use a[] for array items and {*} for objects keyed by a dynamic name such as a coin or an exchange.

FieldTypeUnitDescription
successboolean—true when the request succeeded. On failure the body is `{ success: false, code, error, request_id }`.
symbolstring—Instrument symbol as normalised by CoinBoss (for example BTCUSDT).
intervalstring—Interval.
candlesarray—Candles: [time, open, high, low, close, volume].
candles[]array—Candles: [time, open, high, low, close, volume].
candles[][]number—Candles: [time, open, high, low, close, volume].

Generated 2026-11-11 23:00 UTC from 1 real responses.

Example response

/api/p3/premium-index/klines?symbol=BTCUSDT&interval=1h · Real response captured 2026-11-13 01:42:46 UTC. Long arrays and maps are shortened for display: candles had 1000 items.

  • {
    • "success": true,
    • "symbol": "BTCUSDT",
    • "interval": "1h",
    • "candles": [
      • [ … 5 ],
      • [ … 5 ]
      ]
    }

Details

Authentication
None. Public endpoint.
Rate limit
1200 requests per minute per IP
Server cache
60s
Edge micro-cache
10s
Update frequency
request-time (cached 60 s)
Window
interval param 1m | 5m | 15m | 1h | 4h | 1d (default 1m); latest 1000 candles
Data sources
Proxied at request time from Binance USDT-M futures premium-index klines.
Exchange coverage
Binance only; symbol default BTCUSDT
Units
candles [t, o, h, l, c]; premium index as a fraction; t in Unix ms
Timestamps
Unix epoch milliseconds (UTC) unless the field description says otherwise
Response format
json
Stability
Stable

Live status

AvailableChecked 2026-11-13 01:42:46 UTCHTTP 20087 msSchema matchesNewest data point 43m old

Availability, last 30 days

100% of 383 checks passed

Errors

Failed calls share one shape on every endpoint. The full list is on the errors page. Errors and rate limits →

CodeHTTPMeaningWhat to do
INVALID_PARAM400A required parameter is missing or a value is not accepted. `param` names the parameter when it is known.Do not retry unchanged; fix the request.
UNAUTHORIZED401The `CB-API-KEY` header was sent but the key is unknown or revoked. Public data needs no key — drop the header or use a valid key.Do not retry unchanged.
FORBIDDEN403The route is not part of the public API (internal or account-only).Do not retry.
NOT_FOUND404Unknown route, or the requested coin / exchange / fund does not exist.Do not retry; check the path and identifiers against the catalog.
RATE_LIMITED429More requests than the per-minute limit. `Retry-After` gives the seconds to wait.Wait for `Retry-After`, then retry with backoff.
INTERNAL500Unexpected server error. The message is generic by design; quote `request_id` when reporting it.Retry once after a few seconds; report it with the request id if it persists.
UPSTREAM_FAILED503The data source behind this endpoint did not answer in time. No stale or substitute numbers are returned in its place.Retry with backoff; check the status page.
UNAVAILABLE501 / 503The dataset is temporarily not ready (cache warming) or the endpoint has no lawful public source yet.Retry later; the catalog marks endpoints that are unavailable by design.
REQUEST_FAILED200Some older endpoints answer HTTP 200 with `success: false`. Always check `success`, not only the HTTP status.Depends on the message; treat as a failed request.

Try it

GET/api/p3/premium-index/klinesAvailable
Parameters

string · default BTCUSDT — Contract symbol (e.g. BTCUSDT).

string · default 1m — Candle interval.

Request URLhttps://www.coinboss.com/api/p3/premium-index/klines?symbol=BTCUSDT&interval=1h
Choose an endpoint and press “Send request”. The response, headers and timing will appear here.