A CLI tool and JS client wrapper for the Massive(Polygon) financial data APIs. Covers stocks, crypto, forex, options, indices, futures, market status, news, and reference data.

npx --yes massive <command> [options]

All commands output JSON to stdout. Use for a list of commands or for command-specific options.

See Stocks Commands Reference for full details on all stock commands and parameters.

See Crypto Commands Reference for full details on all crypto commands and parameters.

See Forex Commands Reference for full details on all forex commands and parameters.

See Options Commands Reference for full details on all options commands and parameters.

See Indices Commands Reference for full details on all indices commands and parameters.

See Reference Data Commands Reference for full details on all reference data commands and parameters.

See Market Commands Reference for full details on all market commands and parameters.

See News Commands Reference for full details on all news commands and parameters.