Mounir is the founder of ParaSwap, a DeFi aggregator that consolidates liquidity from decentralized exchanges and lending protocols. ParaSwap focuses on advancing on-chain trading efficiency and user experience.
ParaSwap Delta’s Beta Launch and Roadmap
Mounir discussed the beta release of ParaSwap Delta, an intent-centric trading product designed to minimize MEV (Maximal Extractable Value) risks and simplify DeFi interactions. Currently, in a closed beta phase, Delta is accessible only through ParaSwap’s interface to allow for iterative improvements before a broader V2 launch. This version will introduce breaking changes to smart contracts and APIs, with plans to open access to external partners once stability is confirmed.
Mounir emphasized Delta’s use of private transaction routing to avoid public mempools, leveraging tools like Blink to send transactions directly to block builders. This approach reduces exposure to front-running and sandwich attacks, critical pain points in decentralized trading.
The Technical Engine Behind DEX Aggregation
ParaSwap’s core aggregation technology relies on DexLib, an open-source TypeScript library that standardizes integrations with decentralized exchanges (DEXs) like Uniswap and Balancer. Instead of querying blockchain nodes in real time—a resource-intensive process—ParaSwap monitors liquidity pools by tracking on-chain events (e.g., swaps, deposits) and maintains a live database of token balances. This allows the platform to compute optimal trade paths in milliseconds using algorithms that factor in slippage, gas costs, and multi-hop routes.
Mounir highlighted the challenges of scaling this system, particularly with concentrated liquidity models like Uniswap v3. DexLib’s modular design lets developers reuse code for common operations, fostering collaboration across DeFi projects. Despite TypeScript’s performance limitations, Mounir defended its use for rapid iteration, though he acknowledged interest in Rust for future optimizations.
By routing transactions through private channels, Delta bypasses traditional mempools, reducing MEV opportunities. Mounir noted parallels with traditional finance’s “best execution” standards, underscoring DeFi’s maturation toward prioritizing both price and execution quality.
Gas Abstraction and User Experience
ParaSwap aims to abstract gas fees entirely, allowing users to pay transaction costs directly from their swapped tokens. For example, swapping USDC for ETH would deduct gas fees from the USDC amount, eliminating the need to hold native tokens like ETH for gas. This approach mirrors centralized exchanges’ simplicity, lowering barriers for non-technical users.
Mounir acknowledged edge cases—such as trades smaller than gas costs—but argued most users benefit from streamlined interactions. Future iterations could integrate market makers who bake gas costs into quoted prices, further simplifying the process.
Broader Implications for Decentralized Finance
The conversation concluded with reflections on DeFi’s societal impact. Mounir and the host discussed how self-custody and censorship resistance align with broader ideals of financial sovereignty, contrasting sharply with centralized systems’ inefficiencies. While acknowledging that centralized exchanges will coexist with DeFi.
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