Uniswap Labs launched TJAR on October 29, 2026, an open-source infrastructure tool allowing decentralized applications to convert multi-token fee revenue into single target assets across seven blockchains. Originally built for Uniswap protocol fees—which processed over $15.3 million in September—the tool debuted with Robinhood as its first external partner to convert Uniswap API trading fees into USDC and USDG stablecoins.
Launch and deployment of TJAR
- ▪TJAR deployed across seven blockchain networks at launch, with Uniswap Labs publishing developer documentation, contract deployment addresses, and audit reports.
- ▪Uniswap Labs launched an open-source fee conversion tool named TJAR to allow crypto applications to consolidate fee earnings into a single chosen token
TJAR technical operation and architecture
- ▪Under TJAR's market structure, applications deposit collected fees into a Token Jar contract, allowing third-party searchers to compete to convert the assets by fulfilling requested target payouts via a Releaser contract.
- ▪Developers can deploy a Token Jar in a single transaction to configure payment tokens, pricing parameters, and destination addresses, with options to modify or permanently lock settings.
Robinhood integration with Uniswap
- ▪Uniswap trading protocols operate on Robinhood Chain, while Uniswap web app, wallet, and API support Robinhood Stock Tokens.
- ▪Robinhood integrated TJAR as its launch partner to convert trading fees collected via the Uniswap API into USDC and USDG stablecoins
Uniswap Protocol fees and governance
- ▪Uniswap uses UNI tokens for TJAR fee payments and routes collected UNI to a burn address to remove them from circulation.
- ▪The Token Jar framework was originally developed to handle Uniswap Protocol fees and processed over $15.3 million in conversions in September 2026.
- ▪Uniswap DAO governance retains the authority to introduce an optional protocol fee on TJAR transactions, though no fee is currently activated.
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