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2 tools

Massive (Polygon.io, Inc.) · Market & fundamentals data

Market data platform (renamed from Polygon.io in October 2025) with REST and WebSocket APIs, flat files and SQL access for US stocks, options, indices, forex, crypto and futures

ProprietaryPaidEnterpriseNov 2, 2026

Wharton Research Data Services (WRDS)

The Wharton School, University of Pennsylvania · Market & fundamentals data

Institution-subscribed research data platform from Wharton hosting CRSP, Compustat, TAQ, OptionMetrics and dozens of other vendors' databases with web queries, SQL, SAS, Python and R access

ProprietaryEnterpriseAcademicNov 2, 2026

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Massive (formerly Polygon.io)

Wharton Research Data Services (WRDS)