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1{2  "slug": "nasdaq-data-link",3  "name": "Nasdaq Data Link",4  "aliases": ["Quandl"],5  "vendor": { "name": "Nasdaq, Inc.", "slug": "nasdaq", "website": "https://www.nasdaq.com" },6  "homepage_url": "https://data.nasdaq.com/",7  "docs_url": "https://data.nasdaq.com/tools/api",8  "product_type": "data-service",9  "product_status": "active",10  "summary": "Nasdaq's marketplace for financial, economic and alternative datasets (formerly Quandl) with a REST API, time-series and table endpoints and Python, R and Excel clients",11  "description": "Nasdaq Data Link is Nasdaq's data marketplace, the renamed successor of Quandl, offering financial, economic and alternative datasets from Nasdaq and third-party publishers. Datasets are exposed in one of two API shapes: time-series indexed by a date, retrievable in JSON, XML or CSV with slicing, frequency collapse and transformation parameters, and tables that can be filtered by column; a single API key authenticates both. Official client libraries exist for Python and R and an Excel add-in, and the data.nasdaq.com portal provides dataset documentation, previews and subscription management.\n\nThe catalog mixes free datasets (for example Nasdaq's own core US equity daily prices and a range of macro series) with premium products sold by subscription, each governed by its publisher's licence terms. At the time of checking, the legacy documentation site redirected to an access-tools page that returned an error, suggesting the documentation is being reorganized; users should expect some product churn following the Quandl rebrand and confirm licence terms per dataset before redistribution.",12  "capabilities": ["Time-series API with date slicing, collapse and transforms", "Tables API with column filtering and bulk export", "JSON, XML and CSV responses", "Python and R client libraries and Excel add-in", "Marketplace of free and premium datasets", "Single API key across datasets"],13  "workflows": ["Pulling macro and commodity series into a Python notebook", "Subscribing to a premium fundamentals table and syncing it to a database"],14  "advantages": ["One API across many publishers", "Mature client libraries", "Free datasets alongside premium"],15  "limitations": ["Documentation site in transition at check time", "Licence terms vary by publisher", "Some former Quandl datasets discontinued"],16  "prerequisites": ["Nasdaq Data Link account and API key"],17  "audiences": ["Economists and analysts needing macro and alternative series", "Quant developers integrating fundamentals"],18  "alternatives": ["fred", "alpha-vantage", "polygon-io", "world-bank-data", "wrds"],19  "comparison_notes": "FRED is free and limited to economic series; Alpha Vantage and Massive focus on market prices with their own APIs; Nasdaq Data Link is a multi-publisher marketplace where premium licences dominate.",20  "categories": [{ "slug": "market-data-apis", "primary": true }],21  "tags": ["market-data", "api", "time-series", "macro-data"],22  "use_cases": ["access-market-data"],23  "operating_systems": ["any"],24  "execution_modes": ["cloud"],25  "interfaces": ["api", "sdk", "web"],26  "deployment_models": ["saas"],27  "integrations": ["Python client (nasdaq-data-link)", "R client", "Excel add-in"],28  "data_formats": ["JSON", "XML", "CSV"],29  "languages": ["Python", "R"],30  "source_model": "proprietary",31  "pricing_model": ["freemium", "paid", "usage-based"],32  "self_hostable": false,33  "sources": [34    { "url": "https://data.nasdaq.com/", "type": "official_site", "title": "Financial, Economic and Alternative Data | Nasdaq Data Link", "supports": ["name", "summary"], "checked_at": "2026-11-02" },35    { "url": "https://data.nasdaq.com/tools/api", "type": "official_docs", "title": "Nasdaq Data Link API tools", "supports": ["docs_url", "capabilities"], "checked_at": "2026-11-02" },36    { "url": "https://www.nasdaq.com/products/data/data-link", "type": "official_site", "title": "Nasdaq Data Link – Nasdaq", "supports": ["vendor"], "checked_at": "2026-11-02" }37  ],38  "confidence": "medium",39  "uncertainty_note": "docs.data.nasdaq.com redirected to a page returning 404 on the check date, and the portal renders client-side, so API parameter details rely on the publicly known time-series/tables design rather than a freshly read reference page. pricing_url omitted because pricing is per dataset.",40  "discovery_method": "editorial-research",41  "depth": "standard",42  "editorial_status": "reviewed",43  "visibility": "public",44  "featured": false,45  "author": "batch-E"46}47
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