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Nasdaq Data Link provides a modern and efficient method of delivery for realtime exchange data and other financial information. Data is made available through a suite of APIs, allowing for effortless integration of data from disparate sources, and a dramatic reduction in time to market for customer-designed applications. The API is highly scalable, and robust enough to support the delivery of real-time exchange data. Read our latest case study:Nasdaq Data Link Provides Real-Time Data with Efficiency and Scale to Fintech Newcomer Unhedged

• Products Currently Available
• Getting Started
• Authentication
• API Resources
• Versioning
• HTTP Response Codes
• Tutorial
• License

• Nasdaq Basic
• Nasdaq Last Sale+

• BX BBO
• BX Last Sale

• PSX BBO
• PSX Last Sale

• Nasdaq Consolidated Quotes and Trades

• Global Index Data Service

• Nasdaq Smart Options
• Nasdaq Options Greeks and Implied Volatility

The client success team will provide you with the API URL (<base_url>), username (client_id), and password (client_secret). Substitute for these placeholders with actual values in your code.

Access to the API is granted by providing your client_id and client_secret using OAuth 2.0 authentication.

• POST Authenticate

• GET Last Sale
• GET Last Trade
• GET Last Quote
• GET Snapshot
• GET Trends
• GET Bars (BX and PSX)
• GET Bars (Nasdaq, CQT, and OTCBB)

• GET Value
• GET Snapshot

• GET Value
• GET Snapshot

• GET Chain
• GET Prices
• GET Nasdaq Options Greeks and Implied Volatility

• GET All Symbols
• GET Symbol Details
• GET All Indexes
• GET Index Details
• GET Index Participants
• GET All ETPs
• GET ETP Details
• GET Option Contracts

The first part of the URI path specifies the API version, in the format v{version_number}. For example, version 1 of the API (most current) is accessible via: For example, version 1 of the API (most current) is accessible via:https://<base_url>/v1/

200OK The request was successful.

400Bad Request Your request is invalid.

401Unauthorized Your not entitled for requested data.

404Not Found The specified API endpoint could not be found.

500Internal Server Error We had a problem with our server. Try again later.

503Service Unavailable We're temporarily offline for maintenance. Try again later.

We provide aPostman collection with a set of requests for the API. You will need an Nasdaq Cloud Data Service account with API access to run this tutorial. The Postman collection and environment files are availablehere.

Code and documentation released under theApache License, Version 2.0