Uniswap Launches On-Chain Fee Conversion Tool TJAR; Robinhood Among First to Adopt

Uniswap has launched TJAR, an on-chain fee conversion framework that lets applications automatically convert multi-token fees into a designated token such as USDC without building their own swap infrastructure, with the framework live across seven blockchains as of November 1. TJAR uses a Token Jar mechanism in which apps deposit fees in various tokens into a contract, and searchers compete to execute the conversions, with the app receiving the proceeds in its chosen token. The framework was originally built to convert Uniswap protocol fees and processed over $15.3 million in swaps last month. Robinhood has already adopted TJAR via the Uniswap API, converting fees it collects across its supported chains into USDC and USDG. The tool is now open to other apps and developer teams, and adoption by additional consumer-facing platforms and the framework's conversion volumes will be key metrics to watch.