Log inSign up
WebSocketCrypto

Bybit V5 WebSocket Market Streams (Public)

Bybit V5 WebSocket Market Streams (Public) is a websocket from Bybit providing crypto data. Bybit's V5 public WebSocket pushes real-time spot and perpetual market data — tickers, trades, order book depth, and klines — for BTC, ETH and hundreds of altcoins. A Polymarket bot uses it as an extra high-volume venue for cross-exchange price consensus and spot-vs-perp basis signals feeding "will BTC close above $X" markets.

At a glance

ProviderBybit
TypeWebSocket
CategoryCrypto
Real-timeYes — streaming
AuthNone — open endpoint
PricingFree (public market-data streams; no auth, no usage fee) — Public market streams: free, no API key, no per-request quota (WS messages are not rate-limited), Connections: up to 500 new connections / 5 min and up to 1,000 connections per IP, counted separately per spot/linear/inverse/option, Private (account) streams: free but require API-key auth; REST trading endpoints have per-UID rate limits tunrelated to market data, No paid tier for market data; higher REST limits are arranged via VIP/market-maker programs

What data it provides

  • Spot + perp tickers (last price, 24h volume, mark/index/funding rate)
  • Order book depth snapshots + deltas (levels 1/50/200/500 depending on category)
  • Public trade prints (publicTrade) per symbol
  • Kline/candlestick stream across standard intervals (1m up to 1M)
  • Linear and inverse perpetual contracts plus spot for BTC/ETH/altcoins

Features

  • Order book push frequency down to ~200ms (1000-depth) since Nov 2025; level-1 re-snapshots after 3s idle
  • Snapshot + delta order book model; resync on snapshot messages
  • Heartbeat: ping every 20s; idle connections close after 10 min (configurable max_active_time)
  • WebSocket messages do not count against REST rate limits
  • Official SDKs/libraries: pybit (Python), bybit-api (Node/TS), bybit.net.api (.NET); testnet endpoints available
  • Subscribe many topics per connection (args length limited ~21k chars; spot 10 args/req)

Links

Use it in a bot

Other crypto data sources

Listed, not endorsed. Pricing and capabilities change without notice — check the provider's own documentation before you depend on anything here. Browse the full data resources directory or the strategy database.
Join Discord