Stellar Community Fund

LumAgg — Stellar DEX Aggregator

SCF #44

Description

LumAgg is a liquidity aggregator for Stellar’s Soroban DEX ecosystem. It discovers prices across Soroswap, Aquarius (volatile, stable, and CLMM), Phoenix, Sushi V3, Comet, and Stellar Classic DEX, then returns the best route—including split execution across multiple venues in a single atomic swap.

Problem: Soroban liquidity is fragmented. Large trades on one pool suffer price impact; users must manually compare venues and cannot atomically split across paths.

Solution: A Rust quote engine (multi-hop BFS + split optimization) and a public REST API, plus a mainnet Soroban aggregator contract that executes all legs in one transaction with slippage protection.

Users swap via lumagg.xyz (Freighter / xBull / LOBSTR). Integrators call GET /quote and assemble transactions locally with @stellar/stellar-sdk, or optionally use our /build_tx helper API.

We target traders and wallets who want better execution on Stellar without leaving the Soroban stack—liquidity that native PathPayment cannot route deterministically.