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/api/derivatives/kline
GETAvailable

Derivatives candles for a coin

Derivatives candles (OHLCV) for a coin

GET/api/derivatives/kline

Request

Query parameters

NameTypeRequiredDefaultAllowed valuesDescription
coinstringOptionalBTC—Base coin symbol (uppercase, e.g. BTC). Example: BTC
intervalstringOptional1h1h, 4h, 1dCandle interval. `4h` candles are built from 1h candles on UTC 4-hour boundaries (the response then carries `source_interval: "1h"`). Any other value returns 400 `INVALID_PARAM`. Example: 1h
limitintegerOptional1000≤ 3000Number of candles, newest last. Values above 3000 are capped. Example: 200

Example request

curl -s "https://www.coinboss.com/api/derivatives/kline?coin=BTC&interval=1h&limit=200"

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 }`.
nownumbermsServer time when the response was built.
coinstring—Coin symbol, upper case (for example BTC).
intervalstring—Interval.
dataarray—Payload.
data[]object—Payload.
data[].tnumbermsTimestamp.
data[].onumberUSDOpen price of the candle, from the coin's USDT-margined perpetual on Binance (OKX when Binance has none); `4h` candles are aggregated from 1h.
data[].hnumberUSDHighest price of the candle on the same perpetual contract.
data[].lnumberUSDLowest price of the candle on the same perpetual contract.
data[].cnumberUSDClose price of the candle; for the newest candle, the latest price so far.
data[].volnumber—Volume.

Generated 2026-11-11 23:00 UTC from 4 real responses.

Example response

/api/derivatives/kline?coin=BTC&interval=1h&limit=200 · Real response captured 2026-11-13 03:57:37 UTC. Long arrays and maps are shortened for display: data had 200 items.

  • {
    • "success": true,
    • "now": 1794542257983,
    • "coin": "BTC",
    • "interval": "1h",
    • "data": [
      • { … 6 },
      • { … 6 }
      ]
    }

Verified samples

Besides the example above, the probe calls this endpoint with these parameters and checks the schema each time.

ParametersHTTPLatencyResult
coin=ETH&limit=200&interval=1h2003 msPass
coin=SOL&limit=200&interval=1h2003 msPass
coin=ARKM&limit=200&interval=1h2003 msPass

Checked 2026-11-13 03:57:37 UTC

Details

Authentication
None. Public endpoint.
Rate limit
1200 requests per minute per IP
Server cache
Not cached
Update frequency
top 40 coins every 5 min; long-tail coins in rotation (8 coins per 30 s); latest 2 candles upserted each pass
Window
interval param 1h | 1d; limit candles (default 1000, max 3000); 1 h history about 90 days, 1 d about 2 years
Data sources
Futures candlesticks collected in-house from Binance USDT-M futures klines (OKX swap candles as fallback).
Exchange coverage
about 790 coins from binance futures plus about 110 from okx; one source per coin (binance preferred)
Pagination
limit (default 1000, max 3000)
Sorting
open_time asc
Units
OHLC prices in USD(T); volume in base units; open_time 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 03:57:37 UTCHTTP 2002 msSchema matchesNewest data point 58m old

Availability, last 30 days

100% of 411 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/derivatives/klineAvailable
Parameters

string · default BTC — Base coin symbol (uppercase, e.g. BTC).

string · default 1h — Candle interval. `4h` candles are built from 1h candles on UTC 4-hour boundaries (the response then carries `source_interval: "1h"`). Any other value returns 400 `INVALID_PARAM`.

integer · default 1000 · max 3000 — Number of candles, newest last. Values above 3000 are capped.

Request URLhttps://www.coinboss.com/api/derivatives/kline?coin=BTC&interval=1h&limit=200
Choose an endpoint and press “Send request”. The response, headers and timing will appear here.