Institutional-grade real-time stock tracker for your next big project

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By developers for developers

Made for builders, founders, scholars, dabblers, and dreamers

Standardized JSON / CSV.: Our data is available in both JSON and CSV formats, making it easy for you to integrate it into your application.
Client Libraries.: Our client libraries make it simple to access and use our data, so you can spend less time worrying about the technical details and more time building your application.
Tutorials & Examples.: We know that getting started with a new API can be hard, which is why we provide tutorials and examples to help you get up and running in no time.

from polygon import RESTClient

client = RESTClient("API_KEY")

aggs = []
for a in client.list_aggs(
    "AAPL",
    1,
    "minute",
    "2022-01-01",
    "2023-02-03",
    limit=50000,
):
    aggs.append(a)

print(aggs)

Rows of Data: 0 Trillion+
Raw Data: 0 Petabytes
Uptime: 0%
Messages/sec: 0 Million

Developer friendly access

Data for the entire universe of US stocks

Create your own applications, train models, backtest your strategies, and benchmark your success with the same level of accuracy as the pros.

Company Tickers: 10,413
Historical Data: 15 Years
Market Coverage: 100%

Timestamped to the nanosecond

Normalized real-time and historical market data

Each trade and quote message from all US Exchanges and darkpools. Allowing you to see into each candlestick bar to truly understand what's happening in the market.

// Stocks TRADE:
{
    "conditions": [
        12,
        37
    ],
    "exchange": 4,
    "id": "187115",
    "participant_timestamp": 1679702398739000000,
    "price": 160.23,
    "sequence_number": 5739937,
    "sip_timestamp": 1679702398741170000,
    "size": 1,
    "tape": 3,
    "trf_id": 12,
    "trf_timestamp": 1679702398741113300
}

Reference data included

Plus everything you need to know about a ticker and more

Extensive reference data from the most accurate and reliable sources. All information is standardized and accessible via our reference data API endpoints for ease of use.

Description: Apple designs a wide variety of consumer electronic devices, including smartphones (iPhone), tablets (iPad), PCs (Mac), smartwatches (Apple Watch), and AirPods. The iPhone makes up most of Apple's total revenue. In addition, Apple offers its customers a variety of services such as Apple Music, iCloud, Apple Care, Apple TV+, Apple Arcade, Apple Fitness, Apple Card, and Apple Pay, among others. Apple's products include internally developed software and semiconductors, and the firm is well known for its integration of hardware, software, semiconductors, and services. Apple's products are distributed online as well as through company-owned stores and third-party retailers. The company generates roughly 40% of its revenue from the Americas, with the remainder earned internationally.
Market Capitalization: $2.66 Trillion
Website: apple.com
List Date: December 12, 1980
Listing Exchange: Nasdaq

// Stocks Ticker Details:
{
    "ticker": "AAPL",
    "name": "Apple Inc.",
    "market": "stocks",
    "locale": "us",
    "primary_exchange": "XNAS",
    "type": "CS",
    "active": true,
    "currency_name": "usd",
    "cik": "0000320193",
    "composite_figi": "BBG000B9XRY4",
    "share_class_figi": "BBG001S5N8V8",
    "market_cap": 2666630778840,
    "phone_number": "(408) 996-1010",
    "address": {
        "address1": "ONE APPLE PARK WAY",
        "city": "CUPERTINO",
        "state": "CA",
        "postal_code": "95014"
    },
    "description": "Apple designs a wide variety of consumer electronic devices, including smartphones (iPhone), tablets (iPad), PCs (Mac), smartwatches (Apple Watch), and AirPods. The iPhone makes up most of Apple's total revenue. In addition, Apple offers its customers a variety of services such as Apple Music, iCloud, Apple Care, Apple TV+, Apple Arcade, Apple Fitness, Apple Card, and Apple Pay, among others. Apple's products include internally developed software and semiconductors, and the firm is well known for its integration of hardware, software, semiconductors, and services. Apple's products are distributed online as well as through company-owned stores and third-party retailers. The company generates roughly 40% of its revenue from the Americas, with the remainder earned internationally.",
    "sic_code": "3571",
    "sic_description": "ELECTRONIC COMPUTERS",
    "ticker_root": "AAPL",
    "homepage_url": "https://www.apple.com",
    "total_employees": 164000,
    "list_date": "1980-12-12",
    "branding": {
        "logo_url": "https://api.polygon.io/v1/reference/company-branding/d3d3LmFwcGxlLmNvbQ/images/2023-05-01_logo.svg",
        "icon_url": "https://api.polygon.io/v1/reference/company-branding/d3d3LmFwcGxlLmNvbQ/images/2023-05-01_icon.jpeg"
    },
    "share_class_shares_outstanding": 15821950000,
    "weighted_shares_outstanding": 15821946000,
    "round_lot": 100
}

Deploy faster

Intuitive & easy-to-use APIs

Effortlessly integrate market data into your applications using our intuitive developer-friendly APIs and comprehensive documentation that streamlines the integration process, allowing you to focus on building your application.

Candlestick
Open, high, low, close, volume
Technical Indicators
SMA, EMA, RSI, and many more
Snapshots
See the entire market at a glance
Ticker Overview
Identifiers, logos, and more
Trades
Nanosecond timestamped trade events
Quotes
Nanosecond timestamped quote events

Mission critical market data

Rigorous data quality

Our multi-layered approach to data redundancy and backup ensures uninterrupted access to stock feeds, safeguarding your applications and tools against potential data loss.

Redundant networks.: We operate two fully isolated networks to ingest and process data feeds, ensuring uninterrupted service even in the event of hardware failures.
HA streaming.: Data flows through our systems using a highly available messaging system, ensuring uptime and speed.
Polygon datastore.: Historical data is stored in our nanosecond precision proprietary database - resulting in blazing fast API response times.

Intuitive and easy-to-use

Powerful data, simple access

Choose the data access method that suits your needs and get started today.

Flat Files

Our S3 interface lets you access our flat files easily and seamlessly. With just a few clicks, you'll have the data you need to power your applications.

Explore datasets

API

Our Restful and WebSocket APIs provide flexible and powerful options for accessing our data. Whether you need real-time or historical data, we've got you covered.

View docs

SQL

Our SQL Query option lets you harness the power of SQL to access our data. With this flexible and intuitive option, you can easily customize queries to fit your needs.

Request access

Rewriting the rules of Wall Street

More than just a Stock Market API

We're challenging conventions and pioneering a new tech-forward, transparent approach to market data APIs.

Shattering the status quo

Our radical, user-centric approach disrupts traditional market data norms. We offer self-service access, transparent pricing, and clear documentation. Need expert advice on a market data API? We're right here to help. Welcome to a new era of financial technology.

Instant access

Redefining instant data access, our stock price API makes it simple to pull real-time prices into your application. A few lines of code are all you need, regardless of your programming language of choice. And the sign-up process? Just a couple of clicks, and you're in.

Relentless refinement

We're fanatically dedicated to refining our APIs. We listen, we iterate, and we continuously innovate to deliver groundbreaking products that meet the evolving demands of the financial ecosystem.

Modern historical data

We blend historical and current data through our stock market data API, enabling deep dives into derivative markets, forex, and crypto. We empower data-driven decisions with unparalleled accuracy.

Diverse market data APIs

We go beyond traditional stock data with our market data API, providing avenues into forex, options, indices, and more. We aim to give a comprehensive view of multiple financial landscapes.

Knowledge is power

We offer an extensive range of educational resources designed to maximize the utility of our stock data and other market data APIs. Our goal is to cultivate a culture of continuous learning and growth.

Community-centric approach

We are building an engaged community of developers by opening up unparalleled access to stock data and the broader financial market. We regularly engage with our developer community to understand the practical demands of market data applications, and we use those insights to help guide our direction.

Instant access. Cancel anytime.

Stocks data pricing

Developer-friendly unlimited access to stocks data.

MonthlyAnnually

Stocks Basic

Great for trying our APIs

$0/month

All US Stocks Tickers
5 API Calls / Minute
2 Years Historical Data
100% Market Coverage
End of Day Data
Reference Data
Fundamentals Data
Corporate Actions
Technical Indicators
Minute Aggregates

Individual use

Stocks Starter

Great for aggregates

$29/month

All US Stocks Tickers
Unlimited API Calls
5 Years Historical Data
100% Market Coverage
15-minute Delayed Data
Unlimited File Downloads
Reference Data
Fundamentals Data
Corporate Actions
Technical Indicators
Minute Aggregates
WebSockets
Snapshot

Individual use

Stocks Developer

Great for historical data

$79/month

All US Stocks Tickers
Unlimited API Calls
10 Years Historical Data
100% Market Coverage
15-minute Delayed Data
Unlimited File Downloads
Reference Data
Fundamentals Data
Corporate Actions
Technical Indicators
Minute Aggregates
WebSockets
Snapshot
Second Aggregates
Trades

Individual use

Stocks Advanced

Great for real-time data

$199/month

All US Stocks Tickers
Unlimited API Calls
20+ Years Historical Data
100% Market Coverage
Real-time Data
Unlimited File Downloads
Reference Data
Fundamentals Data
Corporate Actions
Technical Indicators
Minute Aggregates
WebSockets
Snapshot
Second Aggregates
Trades
Quotes

Individual use

Non-pros only

Need data for your business?

Explore plans designed to fuel your company's growth and give you a competitive edge in the financial industry.

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What will you build?

Discover the power of a market data platform that breaks down barriers and levels the playing field.

Get started View our API docs →

Frequently asked questions

Can't find the answer you're looking for? Check out our knowledge base or contact our team.

Title
Does Polygon offer dark pool data?
Data Coverage Category
Data Coverage
Stocks Category
Stocks
Description
Yes, we provide dark pool data. If a trade comes through with an exchange ID of 4 (exchange:4) and also has an attached “trf_id” field, it came from a dark pool.
Title
Does Polygon offer pre-market and after-hours data?
FAQ Category
FAQ
Stocks Category
Stocks
Description
Yes, we provide data for every trade that occurs, including during pre-market and after-hours. Our tick-level market data streams during these extended hours as well.
Title
How does Polygon create the OHLCV (open, high, low, close, volume) aggregate bars?
Aggregates Category
Aggregates
FAQ Category
FAQ
Stocks Category
Stocks
Description
Polygon uses the “Sale Conditions” attached to each trade to determine if that trade is eligible to update the aggregate
Title
Where does Polygon’s Stock data come from?
Data Coverage Category
Data Coverage
FAQ Category
FAQ
Stocks Category
Stocks
Description
Polygon sources its U.S. stock market data from venues including the Securities Information Processors (SIPs), which consolidate quotes and trades from all exchanges, direct connections to major U.S. stock exchanges, FINRA Trading Facilities for off-exchange trades, the OTC Reporting Facility, Alternative Trading Systems (ATSs), and other data sources.
Title
Does Polygon have an endpoint that returns the latest trades, quotes and aggregates in one request?
Aggregates Category
Aggregates
Data Coverage Category
Data Coverage
Stocks Category
Stocks
Description
Yes, we have a group of endpoints called Snapshots that return a ‘snapshot’ of the market for a single ticker, a group of tickers, or all tickers on the market.

Committed to every commit

Developers love Polygon

"Cannot speak highly enough of the @polygon_io service and support. Great team and great products :) #fintech #marketdata #stocks"

Ben Hagan

@ben_hagan

"I just want to say that the best platform for stock data BY FAR is @polygon_io Complete satisfaction thank you!"

Darth Vader the Trader

@VaderTrader_

"@polygon_io's API docs are beautiful. I can't seem to think of a better example of perfect documentation. Seriously impressed."

Francisco Javier Arceo

@franciscojarceo

"Shoutout to the @polygon_io team for having really awesome interactive documentation! I love that the docs auto-generate an adjustable query string for you!"

Jeremy Marx

@jeremydmarx

Developer-friendly access

Explore more data

We're committed to providing fair access to the financial markets for everyone, not just the big players on Wall Street. That's why we offer the same institutional-level data access to both companies and individuals alike.

Options

All US Exchanges + Darkpools