US Stock Data API. Real-Time and Historical Prices.
It’s here. Every single quote and trade. Uniform REST API, WebSocket streaming. Real-time and historical prices, company info, news for Stocks and ETFs from all 16 US exchanges. 100% market volume.
features
US Stock Market Data API. A dataset that has it all.
SIP is your all-access pass to the data that moves markets.
Every US exchange.
Every tick.
Real-time
data.
Historical
data.
9000
Up to API requests per minute.
Level 1 data.
From NBBO.
1 million
Quotes processed per second.
Configure.
And use.
Aggregated data. From 1 min to 4 mo.
Technical indicators
With all asset classes.
Premarket. Post market at glance.
Ultrafast latency.
Under 300 ms.
Tick-by-tick updates.
Every movement captured.
Every US exchange. Every tick.
Prices start at $4 monthly for Non-Professional, individual use. For Professional, commercial usage, prices begin at $2,000 a month plus exchange fees, which vary based on your use case, typically ranging between $2,500 and $10,000.
Technology
Access data like never before.
The SIP API unlocks a world of potential for developers. Here are the key features you can tap into.
Standardized API.
Simple requests.
No overcomplication when retrieving stock market API data. We designed our API using canonical conventions and standards that developers love. Ensuring you can focus on building your product instead of spending time learning the API.
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Response in JSON or CSV formats.
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Ready-to-use SDKs for major programming languages.
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Detailed documentation, supplemented with practical guides and hands-on tutorials.
GET /latest/time_series
curl --request GET
--url 'https://api.finazon.io/latest/time_series?dataset=sip_non_pro&ticker=AAPL&interval=1d'
--header 'Authorization: apikey your_api_key'Response
[
{
"t": 1697227140,
"o": 178.79,
"h": 178.94,
"l": 178.7,
"c": 178.85,
"v": 6290538
}
]WebSocket API.
The most efficient method to auto-stream US stock data from exchanges. Simply connect once, subscribe to the required tickers and channels, and handle the data on your end.
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Aggregated data streaming in 1 minute bars.
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Raw trades and quotes streaming.
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Detailed documentation, complemented by practical guides and hands-on tutorials.
Request example
{
"event": "subscribe",
"dataset": "sip_non_pro",
"tickers": ["AAPL","TSLA"],
"channel": "bars",
"frequency": "1s",
"aggregation": "1m"
}
gRPC API.
The ultimate solution for high-performance market data transport.
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JSON, XML — data in any format!
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Auto generated SDKs for most programming languages.
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Comprehensive documentation enriched with user-friendly guides and interactive tutorials.
Request example
grpcurl
-H 'authorization: Bearer your_api_key'
-use-reflection
-d '{"dataset": "sip_non_pro", "ticker": "AAPL"}'
grpc-latest.finazon.io:443
pb.TimeSeriesService/FindTickersCrypto
Spreadsheets add-ons.
US stock market data API can be accessed non-programmatically via spreadsheets add-ons, which give you a fast, easy, and powerful way to unlock the potential of your work.
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Google Sheets Add-on.
-
Excel Add-on.
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Automatic data refresh.
Over
1B
daily requests
Over
20K
instruments available
Over
15
exchanges supported
Over
99.99%
SLA
Reference data to locate any instrument.
Extensive reference data, curated by AI and our editorial team. All information is standardized.
Access stocks using
RESPONSE EXAMPLE
{
"data": [
{
"ticker": "AAPL",
"currency": "USD",
"security": "Apple Inc. - Common Stock",
"mic": "nasdaq",
"asset_type": "COMMON_STOCK",
"cqs": "",
"cik": "320193",
"cusip": "037833100",
"isin": "US0378331005",
"composite_figi": "BBG000B9XRY4",
"share_figi": "BBG001S5N8V8",
"lei": "HWUPKR0MPOU8FGXBT394"
}
]
}
Get the data you need.
Aggregated in a way you need.
Raw trades and quotes are designed to provide a true reflection of the market situation. Our aggregated time series data allows you to build charts, analyze data, or run a backtesting.
Aggregated time series data
See all aggregation optionsRESPONSE EXAMPLE
{
"data": [
{
"t": 1697227140,
"o": 178.79,
"h": 178.94,
"l": 178.7,
"c": 178.85,
"v": 6290538
},
{
"t": 1697227080,
"o": 178.78,
"h": 178.85,
"l": 178.75,
"c": 178.79,
"v": 363178
},
{
"t": 1697227020,
"o": 178.9,
"h": 178.93,
"l": 178.745,
"c": 178.775,
"v": 282778
}
]
}
Unmatched data quality.
Finazon ensures superior data quality at every stage — from data collection, processing, and cleaning to aggregation and dissemination. With our extensive network of global servers, you're guaranteed optimal response times without any delays.
Compared to other providers, Finazon delivers up to 2x faster data responses, up to 50 percent greater price accuracy, and up to 50 percent more server fault tolerance.
Up to
×2
Faster responses
Up to
50%
Price accuracy
Up to
50%
Fault tolerance
developers
Single API for all datasets.
Maximize your potential with data that has it all.
Aggregates
/time_series
Get time series aggregates for any specified ticker.
Technical indicators
/time_series/{technical_indicator}
Get a range of technical indicators: moving averages, MACD, Bollinger Bands, Ichimoku, RSI, SAR, and more.
Snapshots
/ticker/snapshot
Get a blend of various data points including daily performance, last quote, last trade, minute data, and the previous day's performance.
Tickers
/tickers/us_stocks
Get details for a specific ticker.
Trades
/trades
Get trades for a specific ticker symbol.
Reviews
Don’t take it from us!
We welcome every feedback and are open to comments & suggestions.
4.8
Reviews from G2 & Trustpilot
Sophia B.
5.0
This platform provides incredibly accurate data of a wide specter.
Incognito
5.0
I like their customizable configuration of each dataset. Simple and intuitive. Unlike I've seen anything before.
Scarlett Wright
5.0
I've been using Finazon for over a year now, and from what I can see, it is a straightforward, ever-evolving platform with amazing customer service.
David Helmsey
5.0
Customizable datasets, which adapt perfectly to my needs are the killer feature. Additionally SDK and plugins via gRPC are something unique.
James Hogan
4.0
Impressive data provider! Excellent data quality and user-friendly interface. Just a bit more customization would be perfect.
Datasets
Get US market data API.
We make choosing the right US Stocks Market Data API for your unique case seamless.
Questions? Answers.
SIP is the only publisher in a world that offers 100% coverage of all US exchange data. Finazon receives this data, aggregates it, and provides real-time and historical prices via API.
The difference between these two datasets lies in the exchange licensing and trading volume. If you're a Non-Professional individual, you don't have to sign any agreements or obtain a license. However, if you use the data for commercial purposes, the US Stock Market Data API requires you to obtain permissions from exchanges first and pay additional fees. With the US Stock Essential Market Data API, you avoid this, but you'll receive lower market coverage, capturing roughly 5% of trading volume.
Prices start at $4 monthly for Non-Professional, individual use. For Professional, commercial usage, prices begin at $2,000 a month plus exchange fees, which vary based on your use case, typically ranging between $2,500 and $10,000.
Prices come from every single exchange in the US: New York Stock Exchange (NYSE), NASDAQ, Cboe Global Markets (which includes BZX Exchange, BYX Exchange, EDGA Exchange, and EDGX Exchange), NYSE American (formerly known as AMEX), NYSE Arca, IEX (Investors Exchange), Members Exchange (MEMX), Long-Term Stock Exchange (LTSE), MIAX (Miami International Securities Exchange, primarily for options), and FINRA Alternative Display Facility.
With the US Stock Market Data API dataset, historical daily, weekly, and monthly prices date back to inception. Intraday historical prices are available from January 2023 onward. Deeper historical tick level and aggregated prices are available on demand.
To guarantee the highest data quality, we connect directly with CTA & UTP (part of SIP). After receiving the prices, we aggregate them following 30+ official rules and replicate them on multiple servers. Additionally, we run machine learning algorithms to ensure the data contains no outliers. As a prime partner for the largest trading companies, Finazon guarantees institutional-level quality with a 99.99% SLA.
