# What Is MTGJSON?

# How It Works

MTGJSON is an open-source project that catalogs all Magic: The Gathering cards in a portable format. A dedicated group of fans maintains and supplies data for a variety of projects and sites in the community. Using an aggregation process we fetch data between multiple resources and approved partners, and combine all this data in to various JSON files that you can learn about and download from this website.

The version file, which describes the metadata of all available files contains 3 principle properties:

• date When all files were last completely built. (All data is updated)
• pricesDate When card prices were updated on cards. (Prices data is updated)
• version What version all files are on. (Updates with pricesDate.)

Builds for JSON files run weekly at 4PM EST (typically on Sundays) while rebuilds for new prices are run daily around the same time.

In the version file and meta in associated files, when the files are rebuilt to update card prices, the pricesDate value will update and that date will be appended to the current version, for example, v4.6.0+20191129. Rebuilds that update card prices are fully backwards compatible with its primary release.

# The Team

# Contributing

Many others have devoted their time and effort in to this project. If you have suggestions for improvements, bug reports, or would just like to help address existing issues, we are always looking for help. You can contribute to the project through the main MTGJSON repo or the MTGJSON website repo. If you would like to help in other ways please consider donating to the project via Paypal (one-time donation) or via Patreon (reoccurring donations).

# Supporters