COCO is a free Chrome add-on developed by janmajayamall18. Positioned as the internet's moderation tool, COCO aims to provide users with a warning when they come across factually incorrect or misleading information.

The main function of COCO is to maintain an index of URLs, which contains information about whether a particular link, article, or webpage contains misinformation. This index is created and managed at scale using crypto-economic incentives and a moderation committee.

By downloading COCO, users can ensure that the information they read online is free from misinformation and factually correct. Whether it's a Google search result, a news article, or a tweet in their Twitter feed, COCO will alert users if there is any potential misinformation present.

With COCO, users can have an added layer of protection against misleading information and make more informed decisions while browsing the internet.