Market Data API

Real-time & historical Market Data for stocks, options, ETFs, mutual funds and more. Spreadsheet plug-ins, CSVs, and JSON API.

API Development & Tools

Free for dev

Yes

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Online JSON Viewer - Convert JSON Strings to a Friendly Readable Format, View JSON in table or Grid

Turn your Google Sheets spreadsheets into powerful APIs to rapidly develop prototypes, websites, apps and more.