Uniswap Labs opens TJAR fee conversion tool to other apps, with Robinhood as first partner
Uniswap Labs turns its internal fee tool into a product any app can use
Uniswap Labs has launched TJAR, an open-source tool that lets apps convert the many different tokens they collect in fees into one token of their choice. The company named Robinhood as the first integration partner, with more partners expected to follow.
The tool builds on Uniswap's existing Token Jar system, which was originally built to handle Uniswap's own protocol fees. According to Uniswap Labs, Token Jar processed more than $15.3 million in conversions in September, when it was used for Uniswap protocol fees. It is now open to other apps through TJAR.
Key points
- TJAR is open-source and lets any app convert fee collections into a token it picks.
- Robinhood is the first integration partner and is already using TJAR across its supported chains.
- Robinhood receives its converted fees in USDC (a dollar-pegged stablecoin) and USDG.
- Token Jar handled over $15.3 million in conversions in September, per Uniswap Labs.
- TJAR is live on seven chains, with code, deployment addresses, and audit reports published.
How TJAR works
Apps that collect fees across different blockchains can end up holding thousands of different tokens. Until now, teams had to build their own systems to convert those holdings into a few tokens they actually want. Uniswap Labs says TJAR replaces that custom infrastructure with an open market.
An app deposits its fees into a Token Jar and sets the token it wants to receive, along with an amount. Independent traders called searchers then compete to do the conversion: a searcher pays the requested amount through a contract called a Releaser to collect the assets from the jar, according to Uniswap's documentation. The jar itself does not set a price for each token — searchers decide whether to accept the trade, and payment goes to the recipient the app chose.
Uniswap itself uses UNI for these payments and sends it to a burn address, an address where tokens are permanently removed from circulation. Other apps can choose both the token they receive and where it is sent.
Uniswap Labs said anyone can set up a token jar in a single transaction, change the token, price, or destination at any time, or lock the settings permanently. The Uniswap DAO (the token-holder governance body) can also set an optional protocol fee on TJAR; none is set at present, according to the documentation.
What the Robinhood integration involves
Uniswap Labs said Robinhood is already using TJAR across its supported chains for fees collected through the Uniswap API (a programming interface that lets apps connect to Uniswap's trading system). Fees are converted as they come in, and Robinhood receives them in USDC and USDG.
The two companies already work together in other ways. Uniswap's trading protocols run on Robinhood Chain, and Uniswap's web app, wallet, and API support Robinhood Stock Tokens.
What is confirmed
- TJAR is launched, open-source, and live on seven chains, per Uniswap Labs.
- Robinhood is the first integration partner and is using the tool for fees collected via the Uniswap API, per Uniswap Labs.
- The $15.3 million September conversion figure and the seven-chain count are company statements from Uniswap Labs.
No other independent sources were supplied, so figures above rely on Uniswap Labs' own statements.
Why it matters
Apps running on multiple blockchains collect fees in many different tokens, and building conversion systems is expensive and repetitive work. A shared, open-source tool removes that burden, letting teams receive fees in whatever token fits their needs. Robinhood using TJAR in production also signals that a major trading platform is relying on Uniswap infrastructure for its fee operations.
Sources
Newisty Editorial Team covers technology, cryptocurrency, digital products, online platforms, developer tools and the wider digital economy. Our content is researched from official sources, company announcements, public documentation, market data and other primary or reputable sources. Articles are reviewed and edited before publication for clarity, accuracy and useful context.