--- title: "Polygon" description: "Learn how to connect and feed data to a live algorithm from Polygon in Lean CLI." canonical: https://www.quantconnect.com/docs/v2/lean-cli/live-trading/data-providers/polygon markdown: https://www.quantconnect.com/docs/v2/lean-cli/live-trading/data-providers/polygon.md language: python source: https://github.com/QuantConnect/Documentation/tree/master/05%20Lean%20CLI/09%20Live%20Trading/02%20Data%20Providers/03%20Polygon modified: 2026-10-31 index: https://www.quantconnect.com/llms.txt --- # Polygon [Documentation](https://www.quantconnect.com/docs/v2.md) > [Lean CLI](https://www.quantconnect.com/docs/v2/lean-cli.md) > Live Trading > [Data Providers](https://www.quantconnect.com/docs/v2/lean-cli/live-trading/data-providers.md) > Polygon > Code examples are shown in Python. Append `?lang=csharp` to this URL for the C# version of this page. ## Introduction Instead of using the data from your brokerage, you can also use Polygon. This tutorial demonstrates how to set up the [Polygon data provider](https://www.quantconnect.com/docs/v2/lean-cli/datasets/polygon.md) with the QuantConnect Paper Trading brokerage. To view the implementation of the Polygon integration, see the [Lean.DataSource.Polygon repository](https://github.com/QuantConnect/Lean.DataSource.Polygon). To use the CLI, you must be a member in an [organization](https://www.quantconnect.com/docs/v2/cloud-platform/organizations/tier-features.md) on a paid tier. ## Deploy Local Algorithms Follow these steps to start local live trading with the Polygon data provider: 1. [Log in](https://www.quantconnect.com/docs/v2/lean-cli/initialization/authentication.md#02-Log-In) to the CLI if you haven't done so already. 2. Open a terminal in the [organization workspace](https://www.quantconnect.com/docs/v2/lean-cli/initialization/organization-workspaces.md) that contains the project. 3. If your algorithm trades US Equities, Options, or Futures, [purchase and download](https://www.quantconnect.com/docs/v2/lean-cli/datasets/quantconnect.md) the QuantConnect datasets that LEAN uses for the asset class. Crypto, Forex, and CFD algorithms can skip this step. The following table shows the datasets for each asset class: | Asset Class | Datasets | | --- | --- | | US Equity | [US Equity Security Master](https://www.quantconnect.com/datasets/quantconnect-us-equity-security-master/cli), to get adjusted prices. Without it, your algorithm uses raw prices. | | US Equity Options | [US Equity Security Master](https://www.quantconnect.com/datasets/quantconnect-us-equity-security-master/cli) and [US Equity Option Universe](https://www.quantconnect.com/datasets/quantconnect-us-equity-option-universe) | | US Index Options | [US Index Option Universe](https://www.quantconnect.com/datasets/quantconnect-us-index-option-universe) | | US Futures | [US Futures Security Master](https://www.quantconnect.com/datasets/quantconnect-us-futures-security-master/cli) and [US Future Universe](https://www.quantconnect.com/datasets/quantconnect-us-future-universe) | | US Future Options | [US Futures Security Master](https://www.quantconnect.com/datasets/quantconnect-us-futures-security-master/cli), [US Future Universe](https://www.quantconnect.com/datasets/quantconnect-us-future-universe), and [US Future Option Universe](https://www.quantconnect.com/datasets/quantconnect-us-future-option-universe). To get access, [contact us](https://www.quantconnect.com/contact). | If your algorithm uses [universe selection](https://www.quantconnect.com/docs/v2/writing-algorithms/universes/key-concepts.md), also download the universe dataset, such as the [US Equity Coarse Universe](https://www.quantconnect.com/docs/v2/lean-cli/datasets/quantconnect/us-equity-coarse-fundamental.md) or [US ETF Constituents](https://www.quantconnect.com/docs/v2/lean-cli/datasets/quantconnect/us-etf-constituents.md). 4. Run `lean live deploy ""` to start a live deployment wizard for the project in `. / ` and then enter a brokerage number. ``` $ lean live deploy "My Project" Select a brokerage: 1) Paper Trading 2) Interactive Brokers 3) Tradier 4) OANDA 5) Bitfinex 6) Coinbase Advanced Trade 7) Binance 8) Zerodha 9) Samco 10) Quant Bridge 11) Trading Technologies 12) Kraken 13) Charles Schwab 14) Bybit 15) TradeStation 16) Alpaca 17) Tastytrade 18) Eze 19) dYdX 20) Webull 21) Public 22) Clear Street ``` 5. Enter the number of the live data provider(s) to use and then follow the steps required for the data connection. ``` $ lean live deploy "My Project" Select a live data provider: 1) Interactive Brokers 2) Tradier 3) Oanda 4) Bitfinex 5) Coinbase Advanced Trade 6) Binance 7) Zerodha 8) Samco 9) Quant Bridge 10) Trading Technologies 11) Kraken 12) Charles Schwab 13) IQFeed 14) Polygon 15) CoinApi 16) ThetaData 17) Custom data only 18) Bybit 19) TradeStation 20) Alpaca 21) Tastytrade 22) Eze 23) dYdX 24) DataBento To enter multiple options, separate them with comma: ``` 6. Enter your Polygon API key. ``` $ lean live "My Project" Configure credentials for Polygon Your Polygon API Key: ``` To get your API key, see the [API Keys page](https://polygon.io/dashboard/keys) on the Polygon website. 7. View the result in the ` / live / ` directory. Results are stored in real-time in JSON format. You can save results to a different directory by providing the `--output ` option in step 4. If you already have a live environment configured in your [Lean configuration file](https://www.quantconnect.com/docs/v2/lean-cli/initialization/configuration.md#03-Lean-Configuration), you can skip the interactive wizard by providing the `--environment ` option in step 4. The value of this option must be the name of an environment which has `live-mode` set to `true`. ## Deploy Cloud Algorithms Follow these steps to start live trading a project in the cloud with the QuantConnect Paper Trading brokerage and the Polygon data provider: 1. [Log in](https://www.quantconnect.com/docs/v2/lean-cli/initialization/authentication.md#02-Log-In) to the CLI if you haven't done so already. 2. Open a terminal in the [organization workspace](https://www.quantconnect.com/docs/v2/lean-cli/initialization/organization-workspaces.md) that contains the project. 3. Run `lean cloud live deploy "" --push --open` to push `. / `. to the cloud, start a live deployment wizard, and open the results in the browser once the deployment starts. ``` $ lean cloud live deploy "My Project" --push --open [1/1] Pushing 'My Project' Successfully updated cloud file 'My Project/main.py' Started compiling project 'My Project' Successfully compiled project 'My Project' ``` 4. Enter **1** to select the QuantConnect Paper Trading brokerage. ``` $ lean cloud live deploy "My Project" --push --open Select a brokerage: 1) Paper Trading 2) Interactive Brokers 3) Tradier 4) Oanda 5) Bitfinex 6) Coinbase Advanced Trade 7) Binance 8) Zerodha 9) Samco 10) Quant Bridge 11) Trading Technologies 12) Kraken 13) Charles Schwab 14) Bybit 15) TradeStation 16) Alpaca 17) Tastytrade 18) Eze 19) dYdX 20) Webull 21) Public 22) Clear Street Enter an option: 1 ``` 5. Configure your notification settings. You can configure any combination of email, webhook, SMS, and Telegram notifications for order events and emitted insights. To view the number of notification you can send for free, see the [Live Trading Notification Quotas](https://www.quantconnect.com/docs/v2/cloud-platform/organizations/resources.md#13-Live-Trading-Notification-Quotas). ``` $ lean cloud live deploy "My Project" --push --open Do you want to send notifications on order events? [y/N]: y Do you want to send notifications on insights? [y/N]: y Email notifications: None Webhook notifications: None SMS notifications: None Select a notification method: 1) Email 2) Webhook 3) SMS 4) Telegram Enter an option: 1 Email address: john.doe@example.com Subject: Algorithm notification Email notifications: john.doe@example.com Webhook notifications: None SMS notifications: None Telegram notifications: None Do you want to add another notification method? [y/N]: n ``` 6. Enable or disable automatic algorithm restarting. This feature attempts to restart your algorithm if it fails due to a runtime error, like a brokerage API disconnection. ``` $ lean cloud live deploy "My Project" --push --open Do you want to enable automatic algorithm restarting? [Y/n]: y ``` 7. Select the live node that you want to use. If you only have one idle live trading node, it is selected automatically and this step is skipped. ``` $ lean cloud live deploy "My Project" --push --open Select a node: 1) L-MICRO node 89c90172 - 1 CPU @ 2.4GHz, 0.5GB Ram 2) L-MICRO node 85a52135 - 1 CPU @ 2.4GHz, 0.5GB Ram Enter an option: 1 ``` 8. Enter **14** to select the Polygon data provider. ``` $ lean live "My Project" Select a live data feed: 1) QuantConnect 2) Interactive Brokers 3) Tradier 4) Oanda 5) Bitfinex 6) Coinbase Advanced Trade 7) Binance 8) Zerodha 9) Samco 10) Quant Bridge 11) Trading Technologies 12) Kraken 13) Charles Schwab 14) Polygon 15) CoinApi 16) Bybit 17) TradeStation 18) Alpaca 19) Tastytrade 20) Eze 21) dYdX 22) DataBento To enter multiple options, separate them with comma: 14 ``` 9. Enter your Polygon API key. ``` $ lean cloud live "My Project" --push --open Configure credentials for Polygon Your Polygon API Key: ``` To get your API key, see the [API Keys page](https://polygon.io/dashboard/keys) on the Polygon website. 10. Verify the configured settings and confirm them to start the live deployment in the cloud. ``` $ lean cloud live deploy "My Project" --push --open Brokerage: QuantConnect Paper Trading Project id: 1234567 Environment: Live Server name: L-MICRO node 89c90172 Server type: L-MICRO Live Data providers: Polygon LEAN version: 11157 Order event notifications: Yes Insight notifications: Yes Email notifications: john.doe@example.com Webhook notifications: None SMS notifications: None Telegram notifications: None Automatic algorithm restarting: Yes Are you sure you want to start live trading for project 'My Project'? [y/N]: y ``` 11. Inspect the result in the browser, which opens automatically after the deployment starts. Follow these steps to see the live status of a project: 1. [Log in](https://www.quantconnect.com/docs/v2/lean-cli/initialization/authentication.md#02-Log-In) to the CLI if you haven't done so already. 2. Open a terminal in the [organization workspace](https://www.quantconnect.com/docs/v2/lean-cli/initialization/organization-workspaces.md) that contains the project. 3. Run `lean cloud status ""` to show the status of the cloud project named "". ``` $ lean cloud status "My Project" Project id: 1234567 Project name: My Project Project url: https://www.quantconnect.com/project/1234567 Live status: Running Live id: L-1234567a8901d234e5e678ddd9b0123c Live url: https://www.quantconnect.com/project/1234567/live Brokerage: QuantConnect Paper Trading Launched: 2021-06-09 15:10:12 UTC ``` ## Supported Assets Our Polygon integration supports securities from the following asset classes: - [US Equity](https://www.quantconnect.com/docs/v2/writing-algorithms/securities/asset-classes/us-equity.md) - [US Equity Options](https://www.quantconnect.com/docs/v2/writing-algorithms/securities/asset-classes/equity-options.md) - [US Indices](https://www.quantconnect.com/docs/v2/writing-algorithms/securities/asset-classes/index.md) - [US Index Options](https://www.quantconnect.com/docs/v2/writing-algorithms/securities/asset-classes/index-options.md) ## Mutiple Data Providers When you [deploy a live algorithm](https://www.quantconnect.com/docs/v2/lean-cli/live-trading/data-providers/polygon.md#02-Deploy-Local-Algorithms), you can add multiple data providers. If you use multiple data providers, the order you select them in defines their order of precedence in Lean. For example, if you set Polygon as the first provider and IB as the second provider, Lean only uses the IB data provider for securities that aren't available from the Polygon data provider. This configuration makes it possible to use Polygon data provider for Equity and use IB for Futures.