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/api/coin-heatmap
GETAvailable

Coin heatmap data

Coin heatmap data (market-cap weighted)

GET/api/coin-heatmap

Request

Query parameters

NameTypeRequiredDefaultAllowed valuesDescription
limitintegerOptional50≥ 10 · ≤ 200Number of rows to return. Example: 50

Example request

curl -s "https://www.coinboss.com/api/coin-heatmap?limit=50"

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 }`.
updated_atnumbermsWhen this row was last updated.
countnumber—Number of items.
dataarray—Payload.
data[]object—Payload.
data[].coinstring—Coin symbol, upper case (for example BTC).
data[].price_usdnumberUSDPrice.
data[].mcap_usdnumberUSDMarket capitalisation.
data[].vol_24h_usdnumberUSD24h volume.
data[].change_24h_pctnumber%24h percentage change.
data[].change_7d_pctnumber%7-day percentage change.

Generated 2026-11-11 22:59 UTC from 1 real responses.

Example response

/api/coin-heatmap?limit=50 · Real response captured 2026-11-13 03:57:28 UTC. Long arrays and maps are shortened for display: data had 50 items.

  • {
    • "success": true,
    • "updated_at": 1794542231103,
    • "count": 50,
    • "data": [
      • { … 6 },
      • { … 6 }
      ]
    }

Details

Authentication
None. Public endpoint.
Rate limit
1200 requests per minute per IP
Server cache
60s
Edge micro-cache
10s
Update frequency
third-party market-data aggregator every 10 min; API cache 60 s
Window
24h and 7d change (third-party market-data aggregator)
Data sources
Market-cap heatmap from third-party market-data aggregator data; stablecoins (per a third-party source's list) and wrapped assets are excluded.
Exchange coverage
Top coins by market cap excluding stablecoins and 27 wrapped/staked assets
Pagination
limit (default 50, min 10, max 200)
Sorting
market cap desc
Units
USD; change in percent
Timestamps
Unix epoch milliseconds (UTC) unless the field description says otherwise
Response format
json
Stability
Stable

Live status

AvailableChecked 2026-11-13 03:57:28 UTCHTTP 2003 msSchema matchesNewest data point 17s old

Availability, last 30 days

99.76% 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/coin-heatmapAvailable
Parameters

integer · default 50 · min 10 · max 200 — Number of rows to return.

Request URLhttps://www.coinboss.com/api/coin-heatmap?limit=50
Choose an endpoint and press “Send request”. The response, headers and timing will appear here.