CLI

tdx queries every reference endpoint from the command line, plus the offline Greeks tools. Subcommands are generated from the same endpoint registry as the SDKs, so the CLI never lags the library.

Install and set up

cargo install thetadatadx-cli --git https://github.com/userFRM/ThetaDataDx

Create creds.txt (email line 1, password line 2) in your working directory, or point at one with --creds.

Usage

# Stock EOD across a range
tdx stock history_eod AAPL 20250303 20250306

# Discover an option chain
tdx option list_expirations SPY
tdx option list_strikes SPY 20250321

# EOD Greeks for one pinned contract
tdx option history_greeks_eod SPY 20250321 570 C 20250303 20250306

# Snapshot quotes for several symbols
tdx stock snapshot_quote AAPL,MSFT,GOOGL

# Offline Black-Scholes (no credentials needed)
tdx greeks 450 455 0.05 0.015 0.082 8.5 call
tdx iv 450 455 0.05 0.015 0.082 8.5 call

Commands mirror the endpoint names, and every parameter — required and optional — is positional, in the order the matching reference page lists them. tdx <category> <endpoint> --help prints the exact shape, defaults included.

Global flags

Flag	Default	Description
--creds <path>	creds.txt	Credentials file.
--config <preset>	production	production or dev.
--format <fmt>	table	table, json, or csv.

Scripting

# Export to CSV
tdx stock history_eod AAPL 20250303 20250306 --format csv > aapl_eod.csv

# Chain into jq
EXP=$(tdx option list_expirations SPY --format json | jq -r '.[0]')
tdx option list_strikes SPY "$EXP"

Use --format csv for spreadsheets and pipelines, --format json for jq.