# Known Use Cases (KUC) Total: **40** ## `KUC-101` **Source**: `examples/demo.py` Demonstrates how to define and use async callback handlers for receiving real-time market data updates from cryptocurrency exchanges. ## `KUC-102` **Source**: `examples/demo_arctic.py` Stores cryptocurrency trade, funding, and ticker data to ArcticDB (Arctic) time-series database for persistence and later analysis. ## `KUC-103` **Source**: `examples/demo_bequant_bitcoincom_hitbtc.py` Demonstrates each supported features (ticker, trades, order book, candles) for Bequant and HitBTC exchanges which share the same API. ## `KUC-104` **Source**: `examples/demo_binance_authenticated.py` Demonstrates authenticated access to Binance, Binance Delivery, and Binance Futures for receiving account balances, positions, and order updates in real-time. ## `KUC-105` **Source**: `examples/demo_binance_delivery.py` Shows data subscription for Binance Delivery perpetual futures including order book, ticker, and trade data. ## `KUC-106` **Source**: `examples/demo_binancetr.py` Demonstrates data subscription for Binance TR exchange including ticker, trades, order book with delta updates, and candle data. ## `KUC-107` **Source**: `examples/demo_bitfinex_authenticated.py` Demonstrates synchronous authenticated Bitfinex trading operations including balance queries, order management, and trade execution. ## `KUC-108` **Source**: `examples/demo_bybit_authenticated.py` Demonstrates Bybit authenticated feeds for receiving order updates and trade fills in real-time for account monitoring. ## `KUC-109` **Source**: `examples/demo_check_trade_timestamps.py` Monitors and compares trade timestamps across multiple exchanges to verify timestamp consistency and identify potential synchronization issues. ## `KUC-110` **Source**: `examples/demo_concurrent_proxy.py` Demonstrates using HTTP proxy to bypass exchange rate limits when subscribing to many symbols, enabling concurrent order book and open interest data collection. ## `KUC-111` **Source**: `examples/demo_custom_agg.py` Demonstrates custom aggregation of trade data over time windows, tracking min/max prices for each symbol within the aggregation period. ## `KUC-112` **Source**: `examples/demo_deribit_authenticated.py` Demonstrates Deribit authenticated feeds for order info, trade fills, and balance updates for comprehensive account monitoring. ## `KUC-113` **Source**: `examples/demo_elastic.py` Stores order book, funding, and trade data to Elasticsearch for search and analytics capabilities. ## `KUC-114` **Source**: `examples/demo_existing_loop.py` Demonstrates integrating cryptofeed with an existing asyncio event loop, allowing concurrent execution with other async tasks. ## `KUC-115` **Source**: `examples/demo_gateiofutures.py` Demonstrates subscription to Gate.io futures exchange for ticker, trades, order book, funding, and candle data. ## `KUC-116` **Source**: `examples/demo_gcppubsub.py` Publishes trade data to Google Cloud Platform Pub/Sub for event-driven architectures and cloud-based processing. ## `KUC-117` **Source**: `examples/demo_influxdb.py` Stores funding, order book, trades, ticker, and candles to InfluxDB time-series database for monitoring and analysis. ## `KUC-118` **Source**: `examples/demo_kafka.py` Streams order book and trade data to Apache Kafka with custom topic and partition routing for scalable event processing. ## `KUC-119` **Source**: `examples/demo_liquidations.py` Monitors and displays liquidations across each exchanges that support this channel, useful for identifying market stress and volatility. ## `KUC-120` **Source**: `examples/demo_loop.py` Demonstrates dynamic addition of feeds to a running event loop and scheduled callbacks for adding/removing feeds over time. ## `KUC-121` **Source**: `examples/demo_mongo.py` Stores order book, trades, and ticker data to MongoDB document database with flexible schema for JSON storage. ## `KUC-122` **Source**: `examples/demo_multicb.py` Demonstrates registering multiple callback handlers for a single data channel, enabling parallel processing of the same data. ## `KUC-123` **Source**: `examples/demo_nbbo.py` Calculates National Best Bid and Offer (NBBO) by aggregating best bid/ask prices across Coinbase, Gemini, and Kraken for a given symbol. ## `KUC-124` **Source**: `examples/demo_ohlcv.py` Aggregates trade data into OHLCV (Open, High, Low, Close, Volume) candles over configurable time windows for charting. ## `KUC-125` **Source**: `examples/demo_okx_authenticated.py` Demonstrates authenticated OKX exchange for receiving real-time order updates for account monitoring. ## `KUC-126` **Source**: `examples/demo_playback.py` Plays back historical market data from captured PCAP files through the callback system for backtesting and analysis. ## `KUC-127` **Source**: `examples/demo_postgres.py` Stores comprehensive market data (candles, index, ticker, trades, open interest, liquidations, funding, order books) to PostgreSQL with custom column mapping. ## `KUC-128` **Source**: `examples/demo_quasardb.py` Stores ticker, trades, candles, open interest, index, and liquidation data to QuasarDB for high-performance time-series analytics. ## `KUC-129` **Source**: `examples/demo_questdb.py` Stores order book, candles, funding, ticker, and trade data to QuestDB for high-performance time-series database operations. ## `KUC-130` **Source**: `examples/demo_rabbitmq_exchange.py` Publishes order book data to RabbitMQ using topic exchange routing for flexible message filtering and distribution. ## `KUC-131` **Source**: `examples/demo_rabbitmq_queue.py` Publishes order book data to RabbitMQ using queue-based delivery for point-to-point message distribution. ## `KUC-132` **Source**: `examples/demo_raw_data.py` Collects raw WebSocket data to files for offline analysis, debugging, or historical data preservation. ## `KUC-133` **Source**: `examples/demo_redis.py` Stores trades, funding, candles, order books, open interest, and ticker data to Redis with both pub/sub and persistent storage backends. ## `KUC-134` **Source**: `examples/demo_renko.py` Transforms trade data into Renko chart bricks based on fixed price movements for trend visualization independent of time. ## `KUC-135` **Source**: `examples/demo_tcp.py` Streams trade data over TCP sockets for network-based data distribution to remote systems or applications. ## `KUC-136` **Source**: `examples/demo_throttle.py` Limits the rate of order book callbacks to a specified number per time window, useful for managing downstream system load. ## `KUC-137` **Source**: `examples/demo_udp.py` Streams order book and trade data over UDP datagrams for low-latency network distribution to remote systems. ## `KUC-138` **Source**: `examples/demo_uds.py` Streams ticker and trade data over Unix domain sockets for high-performance inter-process communication on the same host. ## `KUC-139` **Source**: `examples/demo_victoriametrics.py` Stores trade, ticker, order book, and candle data to VictoriaMetrics for Prometheus-compatible time-series monitoring and analytics. ## `KUC-140` **Source**: `examples/demo_zmq.py` Publishes order book and ticker data over ZeroMQ pub/sub for lightweight message distribution to multiple subscribers.