Lossless SIP, OPRA and CME tick history with published per-asset-class lease pricing.
$1500/mo
Real-time market data tools
Exchange-live prices rather than delayed or end-of-day — and the three very different things vendors mean by "real-time".
Last updated
Three things called real-time
Every tool on this page ships prices that are live rather than delayed or end-of-day. That is one
field — data_latency: realtime — and it hides a distinction worth more than most of the others
on a card.
One venue. Alpaca's free tier is real-time IEX data. It is genuinely live and genuinely from an exchange; it is also one venue out of many, so the last price you see is the last price there.
The consolidated tape. Every trade and quote from every US venue, through the SIP. This is what most people mean by real-time and it is where the price steps up — on Alpaca, Massive and Twelve Data alike, the full-tape plan is a different plan.
A direct exchange feed. Databento sells per dataset, straight from the venue, with the order book rather than a summary of it. Different product, different bill, and the only one of the three that answers questions about queue position.
Platforms bundle it; APIs sell it
Roughly half this page is charting platforms and screeners — TradingView, Bookmap, Sierra Chart, NinjaTrader — where real-time comes bundled with the software and the exchange fees arrive as a separate line you agree to inside the product.
The other half is market data APIs, where real-time is the product and the licence is the fine print. The practical difference: a platform's real-time is for your eyes, and an API's real-time may or may not be, depending on what you signed.
The question before the price
Redistribution. Showing live prices to anyone but yourself is licensed separately, per venue and often per end user, and it is the clause that stops more side projects than any rate limit does. Every card here states the vendor's terms as the vendor states them; where a plan is explicitly display-only, the card says so.
All 40 of them
Showing 40 of 40
Free IEX data forever, full SIP and OPRA for a flat $99 a month.
$99/moFree tierMCP
Footprint charts and a market-by-order DOM for futures, with data bought separately.
€24.95/moFree tier
Seventy-odd REST endpoints covering equities, options and physical commodities.
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Licensed US stock newswire over REST, TCP, WebSocket or webhook, priced by contract.
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The limit order book as a heatmap, with full-depth DOM for futures and stocks.
$19/moFree tier
The official short interest, IBKR's borrow fee and SEC fails, sold feature by feature.
$4.95/moFree tier
No-code rule-based stock and ETF strategies, backtested and then traded for real.
$40/moFree tierMCP
Full order book and tick history from exchange feeds, billed by the gigabyte.
$199/mo
Crypto-native footprint and DOM order flow, with CME and Nasdaq on a separate dxFeed plan.
€28/moFree tier
Financial statements, ratios and filings for 70,000+ securities across 60+ exchanges.
$22/moFree tierMCP
Real-time US quotes and a live trade stream on a free key. OHLC candles are not free.
$49.99/moFree tierMCP
Ownership, insider and short-interest filings across thirty markets, none of it free.
$10.95/moFree tier
Real-time quotes, advanced filters and CSV export on top of the free Finviz screener.
$39.50/moFree tier
EU-first portfolio tracker with open-banking broker imports and a social feed.
€89.99/yrFree tier
XBRL-standardised US financials, options analytics and an MCP server.
$150/moMCP
Tick-by-tick data into a local Windows socket, with exchange fees billed on top.
$20/mo
Windows DOM and order-flow platform for futures, bought once rather than monthly.
$50/mo
Full-tick US equities, options and futures from a direct exchange feed.
$29/moFree tierMCP
Windows charting, backtesting and order routing on EasyLanguage, sold outright or monthly.
$49/moFree tier
What Quandl became — Nasdaq's own exchange feeds plus a curated data catalogue.
Free tier onlyMCP
Windows futures platform with C# strategy scripting and order-flow charting.
$99/moFree tier
Enterprise tick capture, storage and streaming analytics, sold only by quote.
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Smoothed options greeks and IV surfaces over REST, end-of-day back to 2007.
$199/moMCP
Short interest estimated daily from the lending pool, with cost to borrow beside it.
$49/moFree tierMCP
The open-source LEAN engine, plus a hosted cloud that runs it against real brokers.
$84/moFree tierMCP
Windows order-flow terminal for 60+ connections, with an open C# API and a real free tier.
$40/moFree tier
Live earnings calls, transcripts, filings and decks — free on mobile, paid on the web.
Free tier onlyMCP
Earnings-call audio, live transcripts, filings and decks over REST, webhooks or Snowflake.
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Windows-native charts, order flow and DOM trading, priced as packages plus exchange fees.
$26/mo
One API for reading brokerage holdings and placing orders at supported brokers.
$1/moFree tierMCP
Five years of financials and a working screener, free and without an account.
$9.99/moFree tier
A dividend and earnings calendar wrapped around your holdings, phone first.
$0.99/moFree tier
Real-time charting and EasyScan screening for US and Canadian stocks and options.
$24.99/moFree tier
Real-time US equity scanning on Windows, with an AI signal engine on the top tier.
$127/mo
Charting across 50-plus markets, with Pine Script, server-side alerts and broker trading.
$12.95/moFree tier
Automated technical analysis, real-time scanning and no-code backtesting in one web app.
$82/mo
Global stocks, forex and crypto over REST and WebSocket, billed in credits per minute.
$29/moFree tierMCP
US options tape, dark pool prints and congressional trades over one REST API.
$50/moFree tierMCP
Financials, estimates and live prices as worksheet functions in Excel and Google Sheets.
$60/yr
FAQ
What does "real-time" mean on a pricing page?
One of three things, and the gap between them is two orders of magnitude in price. It can mean one venue — Alpaca's free tier is real-time IEX, which is genuine live data from an exchange carrying a small share of volume. It can mean the consolidated tape, every trade and quote from every US venue through the SIP. Or it can mean a direct feed from a single exchange, billed per dataset. All three are truthfully called real-time and none is a substitute for another.
Why does the same data cost more for some users?
Because exchanges charge per user, and they charge professionals more. Whether you are professional is the exchange's definition, not yours — registered advisers, anyone trading for a firm, and in several cases anyone who redistributes the data. Vendors pass those fees through, which is why a plan can list one price and bill another. The cards carry the vendor's own price; the exchange fee sits underneath it.
Can I show real-time prices to my own users?
Usually not on the plan you bought. Displaying data to third parties is redistribution and it is licensed separately, per venue, and often per end user — the single most common reason a project that works fine in testing cannot ship. Check the redistribution terms before the latency numbers, because that is the clause that decides whether a plan is usable at all.
Do I need real-time at all?
For backtesting, screening on daily bars, portfolio valuation or fundamental research — no, and paying for it is the most common avoidable cost in this catalogue. End-of-day data is cheaper by an order of magnitude and is what most strategies are actually tested on. Real-time earns its price when a decision happens inside the trading day.