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.

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In October 2023, users of Telegram trading bots Maestro and Unibot lost a combined $1.1 million to smart contract router exploits.

The fixCleanup3_4_0 update prevents loans on the XRP Ledger from being marked late or in default before their due date has passed

The XRP Ledger's fixCleanup3_4_0 amendment corrects asset calculations used when issuers recover tokens from trading pools and when users deposit or withdraw from asset vaults

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Robinhood integrated TJAR as its launch partner to convert trading fees collected via the Uniswap API into USDC and USDG stablecoins

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Uniswap Labs launched an open-source fee conversion tool named TJAR to allow crypto applications to consolidate fee earnings into a single chosen token

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Curve Finance launched its StableSwap protocol on the Stellar mainnet, marking its first native deployment outside the EVM ecosystem

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Aave froze new deposits and borrowing across most of its V3 and V4 markets after wallets linked to a large Binance hot-wallet outflow used the platform to convert freezable stablecoins into ether

MetaMask added Stellar as part of an initiative to expand its self-custodial financial platform beyond Ethereum-based networks toward its Open Money strategy.

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.

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.

TJAR deployed across seven blockchain networks at launch, with Uniswap Labs publishing developer documentation, contract deployment addresses, and audit reports.

Uniswap trading protocols operate on Robinhood Chain, while Uniswap web app, wallet, and API support Robinhood Stock Tokens.

Liquidity providers on Curve Finance's initial set of Stellar pools can earn trading fees.

Curve Finance founder Michael Egorov stated that the expansion to Stellar was driven by institutional demand for deeper liquidity.

Stellar Development Foundation CEO Denelle Dixon stated that Curve Finance choosing Stellar for its first non-EVM deployment demonstrates the network's suitability for financial applications.

Curve Finance's liquidity pools on Stellar allow users to perform permissionless pool creation, swap stablecoins, provide liquidity, and collateralize liquidations in lending applications.

The Enforcement Directorate alleged that decentralized finance protocol Instadapp engaged in Foreign Exchange Management Act contraventions involving approximately $40 million, or about ₹380 crore.

Curve Finance described its initial Stellar release as a limited deployment with the long-term goal of bringing its broader liquidity infrastructure to the network.