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There is no single refresh interval that fits every crypto market dashboard. For live prices, trades and order-book changes, use a provider’s WebSocket stream when available; for REST-only data, poll according to the endpoint’s documented update behavior and request limits. Show when each value was last updated, and mark it stale if its feed disconnects or stops updating.
Why there is no universal refresh interval
A dashboard may combine fields that update in different ways: event-driven trade data, periodic summaries, and slower-changing metadata. Providers also differ in endpoint freshness, supported symbols, subscription behavior and plan limits. A very short timer does not guarantee newer or more accurate data; it can simply send extra requests without changing what the provider has available.
Choose a policy for each field based on how quickly it changes, how fresh it needs to be for the dashboard’s purpose, and what the provider actually delivers. Avoid making a slow summary or metadata card refresh as often as a live price just because both appear on the same screen.
Choose a delivery method for each kind of data
Live prices, trades and order-book updates
When the provider offers the symbols and fields you need, a persistent WebSocket stream is usually the suitable delivery method for live market data. It sends updates as events arrive, rather than requiring repeated REST snapshot requests. The stream’s pace is still bounded by the upstream feed and the provider’s behavior; a WebSocket does not establish a universal latency guarantee. See Binance Spot WebSocket Market Streams and Coinbase Exchange WebSocket feeds.
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REST-only integrations
Set polling no faster than the endpoint’s documented freshness behavior warrants, and check its request-weight and rate-limit rules. Binance notes that REST endpoint data can come from different sources and that request weights and limits apply. If an API returns HTTP 429, back off rather than retrying rapidly: Binance says, “When a 429 is received, it’s your obligation as an API to back off and not spam the API.” See the Binance Spot REST API documentation.
Slower summaries and metadata
Give each slower-changing field its own update policy. This prevents a rapidly changing quote from forcing unnecessary requests for every summary, asset description or other dashboard component. Confirm the source and update behavior for each field rather than assuming the whole dashboard shares one cadence.
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Provider timing examples are not universal targets
Documented timings describe particular feeds or plans, not a recommended interval for all dashboards:
| Provider example | Documented behavior | How to interpret it |
|---|---|---|
| Coinbase Exchange heartbeat channel | Updates once per second for specific products. | This is a channel behavior for those products, not a general price-refresh recommendation. Coinbase documentation |
| CoinGecko Pro simple/price endpoint | Pricing information lists a 30-second update frequency, subject to availability. | This is an example for that endpoint and plan; it does not establish the cadence for every asset, plan or provider. CoinGecko API pricing |
Coinbase also documents that its ticker updates when bids and offers are matched, and that match cascades are batched. The heartbeat and ticker therefore do not represent the same kind of update. Consult the provider’s channel documentation for the fields you use.
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Make stale or disconnected data obvious
Streaming connections can fail or require reconnection, so an unchanged value should not silently look current. Binance documents that Spot market-stream connections are valid for 24 hours and describes operational limits, including a maximum of 1024 streams per connection. Those limits are connection-management details, not a price-update cadence. See Binance WebSocket Market Streams.
- Show the source and last-updated time for values readers could mistake for current quotes.
- Mark a field stale when its feed disconnects or no update arrives within the expected window for that field.
- On reconnection, restore subscriptions and refresh any snapshot the provider requires before treating the display as current.
- For REST polling, respect the provider’s backoff guidance after rate-limit responses instead of continuing on the usual timer.
These are dashboard design safeguards, not a provider-issued freshness standard. The expected window should reflect the specific feed and endpoint, not an assumed universal threshold.
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What to check before setting a cadence
- Coverage: Does the provider supply the markets, symbols and fields the dashboard needs?
- Delivery: Is the data event-driven over WebSocket, periodic, or available only through REST polling?
- Freshness: What update behavior does the endpoint, channel or plan document?
- Limits: What request weights, polling limits, stream subscriptions and connection rules apply?
- Recovery: How will the dashboard detect a disconnect, back off, reconnect and avoid displaying old values as live?
Limits and plan details can change. For example, Binance’s WebSocket API documentation describes connection-attempt limits specific to that API; do not apply those figures to other Binance interfaces or providers without checking the relevant documentation. Coinbase’s market-data connection page says subscription changes took effect June 24, 2024 and lists subscription tiers and prices, so verify the current terms before relying on them: Coinbase Market Data Connections. For provider delivery options, see CoinGecko data delivery.
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