Uniswap Opens TJAR Fee Conversion Tool to All Teams

Uniswap's TJAR is now open for any team to integrate, letting fee-charging apps get paid in the token they choose — stablecoins, ETH, or their own token — regardless of what users actually trade. Fees collect in a jar, searchers compete for them, the jar releases its contents to the winner, and converted tokens land directly in the destination address.

Uniswap announced the rollout in an X thread from Uniswap Labs' Alan Wu, highlighting that Uniswap and Robinhood both use TJAR and that the tool is now available to any team. Founder Hayden Adams summed up the design: "We built token jar to handle the problem of collecting fees in a million different tokens across a ton of different chains." TJAR already runs at scale — it's built on the same framework behind Uniswap Protocol fees, where searchers burned UNI to claim $15.3M in conversions last month. Robinhood is the first external team to use it, receiving its Uniswap API fees in USDC and USDG. The full announcement is on Uniswap's blog.