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/api/p3/premium-index/history
GETAvailable

Premium-index history for one coin

Premium-index history for one coin

GET/api/p3/premium-index/history

Request

Query parameters

NameTypeRequiredDefaultAllowed valuesDescription
basestringOptionalBTC—Base coin symbol (uppercase, e.g. BTC). Example: BTC
daysintegerOptional7≤ 90Look-back window in days. Example: 7

Example request

curl -s "https://www.coinboss.com/api/p3/premium-index/history?base=BTC&days=7"

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 }`.
basestring—Base asset symbol.
seriesobject—Time series.
series.binancearray—Value for exchange `binance` (the key is the exchange id). may be absent
series.binance[]array—Value for exchange `binance` (the key is the exchange id). may be absent
series.binance[][]number—Value for exchange `binance` (the key is the exchange id). may be absent
series.bitgetarray—Value for exchange `bitget` (the key is the exchange id). may be absent
series.bitget[]array—Value for exchange `bitget` (the key is the exchange id). may be absent
series.bitget[][]number—Value for exchange `bitget` (the key is the exchange id). may be absent
series.bybitarray—Value for exchange `bybit` (the key is the exchange id). may be absent
series.bybit[]array—Value for exchange `bybit` (the key is the exchange id). may be absent
series.bybit[][]number—Value for exchange `bybit` (the key is the exchange id). may be absent
series.gatearray—Value for exchange `gate` (the key is the exchange id). may be absent
series.gate[]array—Value for exchange `gate` (the key is the exchange id). may be absent
series.gate[][]number—Value for exchange `gate` (the key is the exchange id). may be absent
series.okxarray—Value for exchange `okx` (the key is the exchange id). may be absent
series.okx[]array—Value for exchange `okx` (the key is the exchange id). may be absent
series.okx[][]number—Value for exchange `okx` (the key is the exchange id). may be absent

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

Example response

/api/p3/premium-index/history?base=BTC&days=7 · Real response captured 2026-11-13 04:02:47 UTC. Long arrays and maps are shortened for display: series.okx had 168 items; series.gate had 168 items; series.bybit had 168 items; series.bitget had 168 items; series.binance had 168 items.

  • {
    • "success": true,
    • "base": "BTC",
    • "series": {
      • "binance": [ … 2 ],
      • "bitget": [ … 2 ],
      • "bybit": [ … 2 ],
      • "gate": [ … 2 ],
      • "okx": [ … 2 ]
      }
    }

Verified samples

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

ParametersHTTPLatencyResult
base=ETH&days=72009 msPass
base=SOL&days=720010 msPass
base=ARKM&days=72005 msPass

Checked 2026-11-13 03:58:09 UTC

Details

Authentication
None. Public endpoint.
Rate limit
1200 requests per minute per IP
Server cache
5m
Edge micro-cache
10s
Update frequency
hourly archive at each UTC hour change (snapshot of the latest table); ClickHouse copy synced every 5 min
Window
days param, default 7, max 90; hourly points
Data sources
Hourly archive of in-house spot vs perpetual basis for 5 exchanges (binance, okx, bybit, bitget, gate).
Exchange coverage
5 exchanges x 19 major coins; archive starts 2026-07-02
Units
basis_pct in percent; hour_ts 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 04:02:47 UTCHTTP 2001 msSchema matchesNewest data point 63m 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/p3/premium-index/historyAvailable
Parameters

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

integer · default 7 · max 90 — Look-back window in days.

Request URLhttps://www.coinboss.com/api/p3/premium-index/history?base=BTC&days=7
Choose an endpoint and press “Send request”. The response, headers and timing will appear here.