Free MIT connectors for public and freemium market data providers. API keys stay on your server — never in the chart bundle.
Compare providers, data coverage, pricing, and license terms before you integrate.
14 connectors match your filters
Free — public API (rate limits apply)
Crypto spot · Crypto futures · Trades · Klines / OHLCV
Free — public API (rate limits apply)
Crypto spot · Crypto perps · Klines / OHLCV
Free — public API (rate limits apply)
Crypto spot · Crypto perps · Klines / OHLCV
Free — public API (rate limits apply)
Crypto spot · USD pairs · Klines / OHLCV
Free — public API (rate limits apply)
Crypto spot · USDT pairs · Klines / OHLCV
Free — public API (rate limits apply)
Crypto spot · USD / USDC pairs · OHLCV
Free — public API (rate limits apply)
Crypto spot · USDT pairs · Klines / OHLCV
Free — CCXT MIT + exchange rate limits apply
Crypto spot · Crypto futures · OHLCV · 100+ exchanges
Free dev tier; paid for production display
Forex · Stocks · Crypto · ETF · OHLCV
Free API key; paid for higher limits / display
Forex · Stocks · Crypto · OHLCV
Free token for quotes; paid for OHLCV candles
Stocks · Forex · Crypto · OHLCV
Free EOD (~1 year); intraday on paid plans
Stocks · Forex · Crypto · ETF · OHLCV
Free trial; paid for production display
Stocks · Forex · Crypto · OHLCV
Free Demo tier; paid for production
Crypto OHLCV · Market cap · 10,000+ assets
Connect live and historical crypto candles, trades, and order-book snapshots from Binance public market data endpoints.
Connect live and historical crypto candles from Bybit public v5 market data endpoints (spot by default).
Connect live and historical crypto candles from OKX public v5 market data endpoints with automatic REST pagination.
Connect live and historical crypto candles from Kraken public Spot API with WebSocket v2 OHLC streams.
Connect live and historical crypto candles from KuCoin public Spot API with Classic WebSocket kline streams.
Connect live and historical crypto candles from Coinbase Advanced Trade public API with ticker_batch WebSocket streaming.
Connect live and historical crypto candles from Gate.io public Spot API v4 with native BTC_USDT symbols and candlestick WebSocket streaming.
Universal connector powered by CCXT — connect Kraken, KuCoin, Gate, and 100+ other exchanges with one package and a single exchangeId config.
Forex, stocks, and crypto OHLCV from Twelve Data — one API key, unified REST and WebSocket for multi-asset fintech apps.
Forex OHLCV from Finage — UK-based market data with REST aggregates and optional WebSocket streaming.
US stocks, forex, and crypto OHLCV from Finnhub — one API token, parallel-array candles, and WebSocket trades.
Global stocks, forex, and crypto OHLCV from EODHD — deep end-of-day history and intraday bars on paid plans.
US stocks, forex, and crypto OHLCV from Massive (formerly Polygon.io) — one API key, per-market WebSocket endpoints.
Load historical and daily crypto market data for broad asset coverage without operating your own ingestion pipeline.
Data Connectors expose a small surface—fetch historical bars, subscribe to live updates, normalize symbols—so your chart code stays provider-agnostic.
Example: Binance connector
import { createChart } from "@efixdata/exeria-chart";
import { BinanceAdapter } from "@efixdata/connector-binance";
const connector = new BinanceAdapter();
const chart = createChart({ container, dataAdapter: connector });
chart.init();
await chart.loadData("BTCUSDT", {
interval: "1h",
limit: 500,
});
chart.subscribeToUpdates("BTCUSDT");Connector license depends on whether the underlying data provider is free or requires a paid subscription obtained through Exeria.
Connectors for open or freemium data APIs are released under the MIT License.
Tell us which data vendor you use and we'll prioritize the next connector.