{"slug":"alpaca-market-data","name":"Alpaca Market Data","domain":null,"verdict":"As of 2026-07-20, ChatGPT, Claude, Gemini, Grok collectively rank Alpaca Market Data #4 of 9 for stock market data api for developers. Source: https://modelsagree.com/product/alpaca-market-data (modelsagree.com, CC BY 4.0).","best_rank":4,"categories":1,"brief":{"category":"best-stock-market-data-api-for-developers","title":"Best stock market data API for developers","rank":4,"of":9,"top":"Massive","day":"2026-07-20","why":[{"t":"Market data with trade execution","m":["Gemini","ChatGPT"],"q":"Seamlessly unifies market data feeds with commission-free algorithmic trade execution APIs"},{"t":"Developer-first SDKs","m":["Gemini","ChatGPT"],"q":"offering developer-first SDKs and smooth paper-to-live trading transitions"},{"t":"Paper-to-live trading","m":["Gemini","ChatGPT"],"q":"paper trading, and seamless execution integration"},{"t":"Built for automated trading workflows","m":["Gemini","ChatGPT"],"q":"building automated execution workflows or trading bots"}],"gap":[{"t":"Full-market coverage","m":["ChatGPT","Claude"],"q":"full-market coverage, trades, quotes, aggregates, reference data, corporate actions, financials, snapshots, and flat files"},{"t":"Tick-level historical data","m":["Gemini","Grok"],"q":"comprehensive tick-level historical and real-time market data"},{"t":"Low latency and reliability","m":["Gemini","Grok"],"q":"Leading low-latency real-time US equities/options data with WebSockets, tick-level history, high reliability/uptime"}],"fix":[{"t":"Full-market data requires paid plans","m":["ChatGPT","Gemini"],"q":"recent full-market data requires the paid plan"},{"t":"Limited historical depth","m":["ChatGPT"],"q":"historical depth is comparatively short"},{"t":"Limited global coverage","m":["Gemini"],"q":"global coverage outside US equities and crypto is limited"}]},"entries":[{"slug":"best-stock-market-data-api-for-developers","title":"Best stock market data API for developers","rank":4,"of":9,"score":6,"appearances":2,"modelRanks":{"ChatGPT":4,"Gemini":2},"reason":"Seamlessly unifies market data feeds with commission-free algorithmic trade execution APIs, offering developer-first SDKs and smooth paper-to-live trading transitions. Assumes the practitioner is building automated execution workflows or trading bots.","reasons":[{"model":"Gemini","reason":"Seamlessly unifies market data feeds with commission-free algorithmic trade execution APIs, offering developer-first SDKs and smooth paper-to-live trading transitions. Assumes the practitioner is building automated execution workflows or trading bots."},{"model":"ChatGPT","reason":"Excellent value for developers building U.S. trading applications, with polished SDKs, streaming data, stocks, options, crypto, paper trading, and seamless execution integration."}],"fixes":[{"model":"ChatGPT","fix":"The free feed is IEX-only and recent full-market data requires the paid plan; historical depth is comparatively short."},{"model":"Gemini","fix":"Full market depth features require paid subscriptions, and global coverage outside US equities and crypto is limited."}],"updated":"2026-07-20","rank_history":{"days":["2026-07-19","2026-07-20"],"ranks":[4,null]},"api":"https://modelsagree.com/api/v1/best/best-stock-market-data-api-for-developers.json"}],"page":"https://modelsagree.com/product/alpaca-market-data","check":"https://modelsagree.com/check?q=Alpaca%20Market%20Data","updated":"2026-07-21T08:55:28.959Z","attribution":"modelsagree.com, CC BY 4.0"}