---
title: "Building a Crypto Dashboard with Node.js: A Practical Guide"
description: "Learn building a crypto dashboard Node.js developers can maintain. Connect REST and WebSocket exchange data pipelines reliably with Siebly SDKs in this guide."
canonical: "https://siebly.io/blog/building-a-crypto-dashboard-with-nodejs-a-practical-guide"
---

# Building a Crypto Dashboard with Node.js: A Practical Guide

Learn building a crypto dashboard Node.js developers can maintain. Connect REST and WebSocket exchange data pipelines reliably with Siebly SDKs in this guide.

## Technical Disclaimer

These articles are software engineering references for exchange API integrations. They are not financial, investment, legal, tax, compliance, or trading advice. Use public data, demo, testnet, or paper workflows first. Keep API credentials out of frontend code and disable withdrawal permissions for automation keys.

## Overview {#overview}

A crypto dashboard is a data pipeline first and a visualization layer second. Building a crypto dashboard Node.js teams can maintain starts with a clear path from exchange data to the interface, not with charts. REST responses and WebSocket events have different shapes and update patterns, so decide how your service will normalize data, handle interruptions, and show whether a value is current before you build the display.

Siebly.io publishes JavaScript, TypeScript, and Node.js SDKs for these exchanges:

| Exchange | npm package |
| --- | --- |
| Binance | [binance](/sdk/binance/javascript) |
| Bybit | [bybit-api](/sdk/bybit/javascript) |
| OKX | [okx-api](/sdk/okx/javascript) |
| Gate.io | [gateio-api](/sdk/gate/javascript) |
| Bitget | [bitget-api](/sdk/bitget/javascript) |
| KuCoin | [kucoin-api](/sdk/kucoin/javascript) |
| Coinbase | [coinbase-api](/sdk/coinbase/javascript) |
| BitMart | `bitmart-api` |
| Kraken | [@siebly/kraken-api](/sdk/kraken/javascript) |
| HTX | [@siebly/htx-api](/sdk/htx/javascript) |

Kraken and HTX are scoped under `@siebly`. The others install by the unscoped name in that table. They sign private requests, attach timestamps, and ship typed request and response shapes. Public market calls do not need API keys. Pass credentials only when you call a private method.

WebSocket clients keep the socket up. They send heartbeats, reconnect when the connection drops, and resubscribe to topics you already registered. They do not retry a failed REST call. They also do not slow or queue requests when you get near an exchange limit. Official exchange documentation stays the source of truth for fields, weights, and error codes. You still own the data model, validation, and how often you call.

This guide explains how to define a dashboard’s scope, shape exchange data for the UI, and move updates through a Node.js service. It covers REST snapshots, WebSocket subscriptions, and awaitable WebSocket request-response calls where the exchange actually offers them. Begin with public data. If you add credentials later, keep them in secure storage, use least-privilege permissions, and disable withdrawal access for automation keys.

## Key Takeaways {#key-takeaways}

- Define the dashboard’s data model and user-facing scope before connecting exchange APIs.
- Use REST for the first snapshot and for occasional refreshes. Use a WebSocket subscription when the screen should keep moving. Use an awaitable WebSocket call only on exchanges that expose one.
- Keep one application shape: exchange, instrument, value or candle fields, event time when the exchange sends one, and the time your service received the update.
- The WebSocket client reconnects and resubscribes. Your service still has to mark data stale while that happens. REST pacing is yours. These SDKs do not throttle requests.
- Add a second exchange behind the same application shape. Do not let the UI learn each payload.



## Define the Node.js crypto dashboard before choosing its data sources {#define-the-nodejs-crypto-dashboard-before-choosing-its-data-sources}

Exchange data becomes useful to a dashboard when it is represented as consistent application state. Market-data responses can differ in field names, precision, and timestamp semantics. If the browser has to interpret each exchange’s format, display logic becomes coupled to every integration. Building a crypto dashboard Node.js developers can extend starts by deciding what the interface needs to show and which layer owns each transformation.

For this example, use a Node.js data service to retrieve public market data, normalize it, and feed a browser interface. The SDKs sit in that service. A market-monitoring dashboard presents market data. It is different from a payment lookup tool that tracks transaction details or an automated execution system that performs actions.

### Choose the dashboard data users need to see {#choose-the-dashboard-data-users-need-to-see}

Start with a read-only dataset. Define the fields the interface needs before selecting endpoints or streams. A compact first version might include:

- Current market values: the latest value needed for a selected instrument.
- Historical candles: time-bucketed open, high, low, and close values for chart rendering.
- Connection status: whether the service is receiving updates or is waiting to reconnect.

Attach the exchange, instrument identifier, and update time to each value. Keep the exchange’s event time distinct from the time your Node.js service received the update when both are available. That difference helps the interface show data freshness instead of presenting an old value as current. Some payloads only have one of those times, and some candle rows are arrays rather than objects. Check the SDK types and the exchange docs before you name fields in your model.

### Separate the Node.js service from the dashboard interface {#separate-the-node-js-service-from-the-dashboard-interface}

Keep exchange connectivity and normalization in Node.js. The service translates exchange responses into a stable application model, then delivers that model to the browser. For continuous updates, a WebSocket connection can carry changes to the interface. The [WebSocket protocol](https://en.wikipedia.org/wiki/WebSocket) provides a persistent, two-way communication channel. The browser can then focus on presentation, including tables, charts, and visible connection state.

This boundary makes the integration easier to test. Validate normalized data independently from chart rendering, then test the interface against representative application data. You can also change a charting library or browser layout without rewriting exchange adapters. Siebly.io’s [JavaScript and Node.js exchange SDKs](/sdk) fit at the connectivity layer, while the dashboard’s data model remains under your application’s control.

## Choose REST, WebSockets, or both for a Node.js crypto dashboard {#choose-rest-websockets-or-both-for-a-nodejs-crypto-dashboard}

Choose a protocol based on how the dashboard uses each value. REST requests work well for initial snapshots and targeted refreshes. WebSockets suit ongoing updates when the interface needs to reflect incoming data without repeatedly requesting a full snapshot. A common design combines the two: load an initial view through REST, then apply WebSocket updates to the relevant application state.

| Factor | REST | WebSockets |
| --- | --- | --- |
| Update pattern | Initial loads and on-demand refreshes | Continuing updates over an open connection |
| Latency needs | Suitable when request-based refresh is sufficient | Suitable when updates should arrive as events |
| Connection state | Each request has a response or an error | Track connection, subscription, and reconnect state |
| Implementation complexity | Normalize each response and manage request frequency | Normalize events. The client reconnects and resubscribes. You still show stale data during the gap |

### Use REST for snapshots and targeted requests {#use-rest-for-snapshots-and-targeted-requests}

Fetch the initial market view with REST, or let a user request a refresh. Pass the response through the Node.js normalization layer before it reaches the browser. Map exchange-specific fields into the dashboard’s stable data model, preserving the exchange, instrument, and timestamp context. Siebly.io’s [JavaScript and Node.js SDK overview](/sdk) describes the supported exchange integration layer. Use official exchange documentation as the source of truth for endpoint behavior and response fields.

Public reads do not need a key. `new MainClient()` on Binance, `new RestClientV5()` on Bybit, and `new RestClient()` on OKX are enough for the market calls below. The generated API-doc snippets in the repos often pass placeholder keys even for public methods. You can omit them until you call something private.

### Use WebSockets for continuing updates {#use-websockets-for-continuing-updates}

Subscribe to public market data when the dashboard needs ongoing updates. A WebSocket connection is persistent, but the feed can still go quiet. These clients detect a dead socket, open a new one, and resubscribe to the topics you already registered. Your service still has to notice. Listen for the client’s connection events, mark values stale while updates are interrupted, and take a fresh REST snapshot if a gap would leave the chart wrong.

Event names are not the same on every package. Binance emits `open`, `reconnecting`, `reconnected`, and `exception`. Bybit and OKX emit `reconnect` (not `reconnecting`) plus `reconnected`. Read the example in the package you install before you wire UI state to a string you copied from another exchange.

Some of these exchanges also offer an awaitable WebSocket API: you send one request and await one response, closer to REST than to a subscription. That client is `WebsocketAPIClient` in [binance](/sdk/binance/javascript), [bybit-api](/sdk/bybit/javascript), [okx-api](/sdk/okx/javascript), [gateio-api](/sdk/gate/javascript), [bitget-api](/sdk/bitget/javascript), [kucoin-api](/sdk/kucoin/javascript), [@siebly/htx-api](/sdk/htx/javascript), and [@siebly/kraken-api](/sdk/kraken/javascript). Coinbase’s connector has a `sendWSAPIRequest` method marked as unsupported for that exchange. BitMart does not expose this pattern. Use a subscription, or REST, on those two.

A Node.js service using both protocols needs explicit coordination: apply updates to normalized state, avoid overwriting newer events with an older snapshot, and manage request frequency. Set those controls in your application using the exchange’s documented limits.

For public market data, avoid credentials where they aren’t needed. If the application later uses private integrations, follow [Node.js security best practices](https://cheatsheetseries.owasp.org/cheatsheets/Nodejs_Security_Cheat_Sheet.html) for secret handling and access boundaries.

## Build the Node.js dashboard data flow in practical steps {#build-the-nodejs-dashboard-data-flow-in-practical-steps}

Make the path from exchange feed to browser explicit. Building a crypto dashboard Node.js developers can maintain means separating connection logic, data transformation, and presentation instead of passing exchange responses directly into chart components. Work through this sequence:

- Setup: Define the public dataset and the fields the interface needs.
- Connect: Call the SDK for that exchange. Public market data does not need a key.
- Normalize: Convert exchange-specific fields into your application’s data model.
- Deliver: Send normalized snapshots or updates through a browser-facing refresh or streaming mechanism.
- Render: Display values with their timestamps and connection state.

### Connect the Node.js service to exchange data {#connect-the-node-js-service-to-exchange-data}

Begin with one exchange and one public dataset. Binance spot is a reasonable first cut: one symbol price, then candles for the chart.

```js title="Imported example"
import { MainClient } from "binance";

const client = new MainClient();

const price = await client.getSymbolPriceTicker({ symbol: "BTCUSDT" });
const candles = await client.getKlines({
  symbol: "BTCUSDT",
  interval: "1m",
  limit: 100,
});
```

`getSymbolPriceTicker` returns `{ symbol, price, time }`. `price` is a string. `time` is optional. `getKlines` does not return objects. Each candle is an array: open time, open, high, low, close, volume, close time, then quote volume and trade counts. Open, high, low, and close are strings unless you set `beautifyResponses: true` on the REST client. Map that once, in the service:

```js title="Imported example"
function fromBinancePrice(price) {
  return {
exchange: "binance",
instrument: price.symbol,
value: price.price,
eventTime: price.time ?? null,
receivedAt: Date.now(),
  };
}

function fromBinanceKline(candle) {
  const [openTime, open, high, low, close, , closeTime] = candle;
  return {
exchange: "binance",
openTime,
open,
high,
low,
close,
closeTime,
receivedAt: Date.now(),
  };
}
```

For a live tape, subscribe with `WebsocketClient`. `beautify: true` turns the one-letter stream keys into readable fields and emits them on `formattedMessage`. The type guards only match that beautified shape, and the prices in those events are numbers. `btcusdt@ticker` is the single-symbol stream. The all-market `!ticker@arr` stream is deprecated, so leave it out. After beautify, the last price on a 24hr ticker event is `currentClose`, not `price`.

```js title="Imported example"
import {
  isWsFormatted24hrTicker,
  isWsFormattedKline,
  WebsocketClient,
} from "binance";

const wsClient = new WebsocketClient({ beautify: true });

wsClient.on("open", ({ wsKey }) => {
  console.log("connected", wsKey);
});

wsClient.on("reconnecting", ({ wsKey }) => {
  console.log("reconnecting", wsKey);
});

wsClient.on("reconnected", ({ wsKey }) => {
  console.log("reconnected", wsKey);
});

wsClient.on("exception", (error) => {
  console.error(error);
});

wsClient.on("formattedMessage", (event) => {
  if (isWsFormatted24hrTicker(event)) {
console.log({
exchange: "binance",
instrument: event.symbol,
value: event.currentClose,
eventTime: event.eventTime,
receivedAt: Date.now(),
});
return;
  }

  if (isWsFormattedKline(event)) {
const candle = event.kline;
console.log({
exchange: "binance",
instrument: event.symbol,
open: candle.open,
high: candle.high,
low: candle.low,
close: candle.close,
eventTime: event.eventTime,
receivedAt: Date.now(),
});
  }
});

await wsClient.subscribe(["btcusdt@ticker", "btcusdt@kline_1m"], "main");
```

The second argument, `'main'`, routes the subscription to Binance spot market streams. You do not resubscribe inside `reconnected`. The client does that. Use `reconnected` as the moment to refresh a REST snapshot if the chart cannot tolerate a gap.

If a workflow needs one response for one request, and you want that over a WebSocket instead of HTTP, Binance’s `WebsocketAPIClient` can do it for public market data. No key is required for this call:

```js title="Imported example"
import { WebsocketAPIClient } from "binance";

const wsApi = new WebsocketAPIClient();

const klines = await wsApi.getSpotKlines({
  symbol: "BTCUSDT",
  interval: "1m",
  limit: 100,
});
```

That is a request and a response. It is not a subscription. For a chart that should keep updating, stay on `WebsocketClient` and `btcusdt@kline_1m`.

Keep the browser independent of the raw response format. A compact internal record might contain an exchange identifier, instrument identifier, value or candle fields, event timestamp when available, and service receipt time.

### Normalize and deliver updates to the browser {#normalize-and-deliver-updates-to-the-browser}

Have Node.js publish the normalized model through a defined browser-facing interface. For a simple dashboard, the browser can request a snapshot or refresh from the service. For continuing updates, the service can forward normalized events over a browser-facing stream. Keep that delivery contract separate from the exchange connection, so the UI doesn’t need to interpret exchange-specific messages.

Treat freshness as part of the data, not as an assumption. Show the update timestamp beside each value and expose whether the service is connected, reconnecting, or waiting for data. If timestamps are available from both the exchange event and your service, preserve their meanings rather than treating them as interchangeable. Exchange market feeds represent exchange data, which is distinct from blockchain records.



## Make a Node.js crypto dashboard reliable and secure {#make-a-nodejs-crypto-dashboard-reliable-and-secure}

An SDK can sign requests and keep a WebSocket alive, but it doesn’t define your application’s production behavior. Your service still needs to detect stale data, validate incoming messages, expose useful errors, and control request volume. A successful connection is not proof that the last value on screen is current.

### Handle stream interruptions and data freshness {#handle-stream-interruptions-and-data-freshness}

Track connection state and the timestamp of the most recent valid update for each feed. If updates stop, mark the data as delayed or stale instead of leaving the last value looking current. Drive that from the client events (`reconnecting` or `reconnect`, then `reconnected`, and `exception`), not from a second reconnect loop of your own. A second loop will fight the client.

On `reconnected`, the previous topics are subscribed again. That does not fill in prints you missed while the socket was down. If the chart needs a continuous candle history, request a fresh REST snapshot and merge it without letting an older snapshot overwrite a newer event.

Validate messages before updating dashboard state. Check that required fields are present, values have the expected types, and timestamps can be interpreted. Reject or quarantine invalid messages rather than silently rendering them. Give the interface clear states for loading, missing data, delayed updates, and invalid responses. These signals help distinguish a quiet market feed from a broken integration.

### Protect credentials and control request volume {#protect-credentials-and-control-request-volume}

Keep exchange secrets on the Node.js server. Store them in a secure configuration system, and never embed them in browser code, commit them to a repository, or include them in logs and shared examples. Use least-privilege permissions for any key. Disable withdrawal permissions for automation keys, and avoid credentials in public market-data workflows when the exchange supports unauthenticated access.

Request pacing is an application responsibility. None of these SDKs pause calls when a limit gets close, and none of them retry a failed REST request for you.

The Binance REST clients do remember the rate-limit headers on the last response. After a public call you can read them:

```js title="Imported example"
const price = await client.getSymbolPriceTicker({ symbol: "BTCUSDT" });
console.log(client.getRateLimitStates());
```

That object is the last weight and order-count headers the client saw, plus `lastUpdated`. It will not delay the next call. If the numbers climb, call less often or switch that view to a WebSocket.

Bybit can copy account rate-limit headers onto a response when you construct the client with `parseAPIRateLimits: true`. Those headers are per account and per endpoint. They do not show up on public market calls, so a public-only dashboard will not see them. They are still not a throttle. You read them and you decide.

Private Binance calls are sensitive to clock skew. The REST client syncs time unless you set `disableTimeSync: true`. If you still see recvWindow errors, fix the host clock before you widen the window. Bybit, OKX, and the other packages have their own option names. Copy the flag from the package you are using.

Binance also splits practice environments. `demoTrading: true` uses live market data with simulated trading. `testnet: true` is a separate environment with its own market. Other exchanges name their test environments differently. Check that package before you reuse either flag.

Develop and test with public data, demo trading, or testnet before connecting broader functionality. Log operational errors with enough context to diagnose the exchange, data category, and failure state, but redact credentials and sensitive request details.

## Extend the dashboard with Siebly SDKs and a maintainable architecture {#extend-the-dashboard-with-siebly-sdks-and-a-maintainable-architecture}

A second exchange should add a data source, not force changes throughout the interface. Keep the dashboard’s application model stable and put exchange-specific connection and response handling behind an adapter. Shared tables and charts can then consume normalized values, timestamps, and connection state without depending on a particular exchange’s payload format.

### Expand from one exchange without coupling the interface {#expand-from-one-exchange-without-coupling-the-interface}

The same BTC spot price is a different object on Bybit. Public calls still need no key. The ticker you want is `result.list[0]`, and the last price field is `lastPrice`. The spot ticker object has no timestamp of its own. The response wrapper does, on `time`.

```js title="Imported example"
import { RestClientV5 } from "bybit-api";

const client = new RestClientV5();

const tickers = await client.getTickers({
  category: "spot",
  symbol: "BTCUSDT",
});

const ticker = tickers.result.list[0];

const snapshot = {
  exchange: "bybit",
  instrument: ticker.symbol,
  value: ticker.lastPrice,
  eventTime: tickers.time,
  receivedAt: Date.now(),
};
```

Candles are arrays of strings, not the Binance tuple. `interval: '1'` is one minute. The row is start time, open, high, low, close, volume, turnover:

```js title="Imported example"
const candles = await client.getKline({
  category: "spot",
  symbol: "BTCUSDT",
  interval: "1",
  limit: 100,
});

const [startTime, open, high, low, close] = candles.result.list[0];
```

The Bybit WebSocket client emits updates on `update`. Reconnect is `reconnect`, then `reconnected`. This subscription is the 5-minute spot candle topic from the public example:

```js title="Imported example"
import { WebsocketClient } from "bybit-api";

const wsClient = new WebsocketClient();

wsClient.on("update", (data) => {
  console.log(data);
});

wsClient.on("reconnect", ({ wsKey }) => {
  console.log("reconnecting", wsKey);
});

wsClient.on("reconnected", (data) => {
  console.log("reconnected", data?.wsKey);
});

wsClient.subscribeV5(["kline.5.BTCUSDT"], "spot");
```

`category` is required. Spot, linear, inverse, and option use different WebSocket endpoints, and the client routes from that argument.

OKX is a third shape. `new RestClient()` with no keys is enough for public data. `getTicker({ instId: 'BTC-USDT' })` returns the ticker array directly (the client already unwraps a successful `data` field). The last price is `last`, and the exchange time is `ts`. A live ticker subscription looks like `{ channel: 'tickers', instId: 'BTC-USDT' }`, and one-minute candles are `{ channel: 'candle1m', instId: 'BTC-USDT' }`. Updates arrive on `update`. The symbol uses a hyphen (`BTC-USDT`), which is not the Binance or Bybit symbol.

That is the adapter’s job. The UI should still receive `exchange`, `instrument`, `value`, `eventTime`, and `receivedAt`.

### Move from prototype to a tested implementation {#move-from-prototype-to-a-tested-implementation}

Test each boundary on its own. Verify that representative exchange responses normalize correctly, stale data is marked as stale, reconnects update connection state, and browser components render both values and timestamps. Review [Siebly.io release information](/releases) as part of SDK update work, then validate the integration against current exchange documentation before deploying changes.

For broader service-boundary considerations, see this [Node.js system architecture guide](/blog/algorithmic-trading-system-architecture-in-nodejs-a-2026-engineering-guide). Keep rate-limit controls in your own service. These SDKs can show you Binance weight headers, or Bybit account headers when you opt in, and they will not pace the calls.

Choose one exchange and one public dataset for the first prototype. Verify the relevant fields and update behavior in official documentation, then connect through the matching SDK and render normalized data with visible timestamps and connection state. Expand after that end-to-end path is tested.

## Build on a clear, testable data pipeline {#build-on-a-clear-testable-data-pipeline}

A maintainable dashboard starts with a focused data model, then connects exchange data to the interface through a Node.js service. Use REST for the snapshot, a WebSocket subscription for the live tape, and an awaitable WebSocket call only when that package actually has `WebsocketAPIClient`. Show timestamps and connection state so the interface communicates data freshness.

Siebly.io’s SDKs sign private requests, attach timestamps, and type the calls. Binance REST clients also sync the clock unless you turn that off. WebSocket clients reconnect and resubscribe. Your application still validates payloads, keeps secrets on the server, and decides how often to hit REST. Nothing in these packages throttles for you.

Start with one exchange and a public-data prototype. Verify endpoint behavior against official documentation, test normalization and reconnect handling, then add integrations behind the same application data model. [Explore Siebly.io exchange SDKs](/) as the implementation layer for your Node.js project. A defined scope and tested boundaries help you build incrementally and keep the data flow understandable.

## Frequently Asked Questions {#frequently-asked-questions}

### What should a crypto dashboard built with Node.js display? {#what-should-a-crypto-dashboard-built-with-node-js-display}

Display only the data needed for the dashboard’s purpose, such as current market values, historical candles, timestamps, and connection status. Include the exchange and instrument identifiers with each value so users can understand its source. Building a crypto dashboard Node.js developers can maintain is easier when the initial view uses a small, read-only dataset. Add further data categories after the basic data flow and display behavior are tested.

### Can Node.js receive crypto exchange data through WebSockets? {#can-node-js-receive-crypto-exchange-data-through-websockets}

Yes. A Node.js service can subscribe to public market streams with the package’s `WebsocketClient`. Normalize each message before it reaches the browser. The client heartbeats, reconnects, and resubscribes to topics you already registered. You still record connection state and the latest update time, because a reconnect does not mean the missed updates were replayed.

Binance, Bybit, OKX, Gate.io, Bitget, KuCoin, HTX, and Kraken also ship a `WebsocketAPIClient` for calls you can await. That is one request and one response over a WebSocket. Coinbase and BitMart do not offer that pattern. Check the package before you assume a connection is subscription-only, or that it is not.

### Should a Node.js crypto dashboard use REST, WebSockets, or both? {#should-a-node-js-crypto-dashboard-use-rest-websockets-or-both}

Use REST for the initial snapshot or a targeted refresh, and a WebSocket subscription when the screen needs a continuing stream. Combining them is the practical pattern: load the dataset, then apply stream events to normalized state. After a reconnect, reconcile with a fresh snapshot if a gap would leave the chart wrong. Base the choice on the dashboard’s update needs and the exchange’s documented interface, not on an assumption that one protocol fits every data category.

### How do I send exchange data from Node.js to a browser dashboard? {#how-do-i-send-exchange-data-from-node-js-to-a-browser-dashboard}

Have Node.js receive exchange data, normalize it into an application-level shape, then expose it to the browser through a refresh endpoint or a browser-facing stream. Keep exchange-specific response structures inside the Node.js integration layer. The interface should consume consistent fields, such as value, instrument, exchange, timestamp, and connection state. This separation makes the UI easier to test and change without rewriting exchange connectivity.

### Does a Siebly SDK handle exchange API rate limits automatically? {#does-a-siebly-sdk-handle-exchange-api-rate-limits-automatically}

No. None of these packages delay or queue requests for you, and they do not retry a failed REST call.

Binance REST clients store the rate-limit headers from the last response. Read them with `getRateLimitStates()` and slow down yourself if the weight is climbing. Bybit can attach parsed account rate-limit headers when `parseAPIRateLimits` is true. Those headers are not present on public market calls. Either way, the exchange docs are the source of truth for the actual limits, and the pacing policy lives in your service.

### How should a Node.js dashboard protect exchange API credentials? {#how-should-a-node-js-dashboard-protect-exchange-api-credentials}

Keep credentials on the Node.js server and out of browser code, source control, logs, and shared examples. Store secrets using secure configuration practices, and apply least-privilege permissions to any API key. For automation keys, disable withdrawal permissions. Use public data without credentials when possible, and never place secret values in client-side requests. Validate configuration at startup so missing credentials or permissions produce a clear service error.

### Can I build a crypto dashboard using public exchange data only? {#can-i-build-a-crypto-dashboard-using-public-exchange-data-only}

Yes. A read-only dashboard can use public market data, such as prices or candle history, when the exchange provides public endpoints or streams. The samples above do that with `new MainClient()`, `new RestClientV5()`, and `new RestClient()` and no keys. Start with one source, confirm field names in the SDK types and the exchange docs, and normalize the response before rendering it. Public-data development is also a useful way to test the Node.js-to-browser pipeline before adding private integrations or credentials.

## Related articles

- [Siebly AI Skills for Trading: Developer Setup Guide](/blog/siebly-ai-skills-for-trading-developer-setup-guide)
- [Scalable Crypto API Integration in Node.js: A Practical Engineering Guide](/blog/scalable-crypto-api-integration-in-nodejs-a-practical-engineering-guide)
- [Crypto Data Pipeline: Node.js Engineering Guide 2026](/blog/crypto-data-pipeline-nodejs-engineering-guide-2026)


## Related Siebly Resources

- [Binance JavaScript SDK](/sdk/binance/javascript)
- [Bybit JavaScript SDK](/sdk/bybit/javascript)
- [OKX JavaScript SDK](/sdk/okx/javascript)
- [Siebly SDK directory](/sdk)
- [Exchange State Management](/ai/exchange-state)
