If it's 2023 and baseball, the unique prefix for MLB is 422.

(2) the string '.l.' (that's a lowercase L).

(1) a unique prefix Yahoo randomly assigns each season.

LEAGUE_KEY: the League Key has three parts:.

YAHOO_AUTH_CODE: Obtained from Yahoo in step 9 above ( not the App ID in step 5!).

CONSUMER_SECRET: Also obtained from Yahoo in step 5 above.

CONSUMER_KEY: Obtained from Yahoo in step 5 above.

Enter in the following values and save:.

Rename to config.json and open it in a text editor.If you get an error message that nvm cannot be found, install it (e.g. Optional: To make sure you're using the right version NodeJS, type in nvm use.nvmrc file for version but most versions should work) Take the Client ID/Consumer Key from above and paste it into the following URL: However the above codes are not enough to interface with the Yahoo Fantasy API.API Permissions (checkmark Fantasy Sports, then Read/Write).Installation Part 1: Get access codes from Yahoo

Its impossible to create a Yahoo account without verifying it, so to verify an account you must first go through. If you prefer PHP I have a primitive version of this in /php-version. 1.Set up a new Yahoo account if necessary. If you want a more advanced tool, see my Yahoo Fantasy Baseball Automater, which attempts to start an optimal lineup for you based on your team vs the day's probably pitchers.Īlso, this is written in NodeJS. Want to download your fantasy baseball data from Yahoo but having a hard time interfacing with their poorly documented API?

Download yahoo fantasy