Uniswap’s Token Jar lets apps collect fees in a single token of their choice

The TJAR fee conversion tool, first built for the Uniswap Protocol, is now open to other apps, and Robinhood is already using it Uniswap has opened up its Token Jar, known as TJAR, to the wider crypto app ecosystem. It is an onchain tool that takes the jumble of tokens an app earns in fees and turns them into the one token the team actually wants. The pitch is simple. Instead of ending up with a junk drawer of assets, an app can collect its fees in stablecoins, its own token, or whatever it prefers. How the Token Jar works Crypto apps face a version of this every day. Users pay fees in whatever tokens they happen to be trading, so revenue arrives scattered across many different assets. TJAR is Uniswap’s answer to that sprawl. An app sends its incoming fees into a Token Jar contract, where they pile up. From there, searchers compete to convert the accumulated assets into the app’s chosen token. Searchers are third parties hunting for profitable opportunities onchain, and here they handle the swapping work. Setup is designed to be minimal. Deploying a Token Jar takes a single transaction, which configures the target token, the price settings, and the address where converted funds sho...