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By Institutional Liquidity Infrastructure for Stellar
We built the Stellar infrastructure layer under our previous SCF Build Award: a multi-DEX indexer across Soroswap, Aquarius and Phoenix, an AMM V2 analytics engine, and Soroban smart contracts for LP position management. All of that is technically complete.
What institutional clients need on top of that already exists on every other chain but not on Stellar. This submission builds the four missing pieces.
Allbridge Core.
Capital sitting on Ethereum or Arbitrum needs to reach Stellar without manual bridge steps. We embed the Allbridge Core SDK into our execution service for automated USDC transfers with trustline creation handled automatically. The same integration also powers our cross-chain arbitrage: when our engine finds a better price on an EVM chain, the Arb Reserve bridges out, the trade executes, and funds return to Stellar. The client sees a swap in their log.
Stellar Broker.
Our engine currently calls each DEX directly. On institutional sizes that creates execution risk between legs. Stellar Broker routes across all Stellar DEXs and submits all legs in the same ledger. One five-second window, no price gap.
DFNS.
Deploying capital with a single private key is not acceptable under MiCA or any institutional risk framework. DFNS threshold signatures remove that blocker. We configure approval policies per client via the JSON REST API and stream webhook events to the dashboard in real time. This is the actual reason institutional capital has not touched Stellar DeFi yet.
Stellar Wallets Kit.
Smaller funds and DeFi-native operators connect directly via Freighter or LOBSTR without going through the custody setup. One unified integration covers all major Stellar wallets via @creit-tech/stellar-wallets-kit v2.
We currently manage approximately $15M in capital across our algorithms on Ethereum, Arbitrum and Base, covered by signed commercial agreements and letters of intent. Several clients are in active discussions about Stellar allocations. What is blocking them is exactly the access layer this submission builds. Once it exists, a portion of that managed capital deploys on Stellar through LP positions and arbitrage opportunities across the three DEXs. The data room at https://drive.google.com/drive/folders/1zdsVCiBzNlr-MSDWa3pwHp86WzTU8lD5 contains the LOIs and supporting documentation.
$115.0K
Our 2025 SCF Build Award funded the core Stellar infrastructure layer. All deliverables are technically complete and operational.
Multi-DEX Indexer
A real-time indexer pulling data from Soroswap, Aquarius and Phoenix, using Stellar RPC for Soroban events and Horizon for the native SDEX. Every ledger is processed and stored in a PostgreSQL time-series database partitioned by ledger sequence.
Analytics Engine
An engine scoring every pool in real time across three dimensions:
Profitability: Sharpe-based performance net of impermanent loss
Stability: price volatility variance combined with TVL variance
Efficiency: turnover relative to pool depth, weighted by token balance
Soroban Smart Contracts
LP position management contracts deployed on Stellar testnet:
Position Manager
Execution Router
Access Controller
Dashboard MVP
Live interface with wallet connection via Stellar Wallets Kit v2, including:
portfolio display
pool scoring
bridge history
activity timeline
Live demo:
https://stellar-integrations-blush.vercel.app
Commercial Traction and Capital Ready to Deploy
We currently operate under six signed commercial agreements.
Trakx
AMF-registered CASP (registration E2021-020, Paris).
We provide quantitative trading signals under an active contract.
Dowgo
MiCA-compliant token issuer for whom we manage on-chain liquidity strategy.
Block Labs Capital
Crypto-native fund using our LP strategy execution infrastructure.
Three additional partners are under NDA.
Total capital covered by signed LOIs and active strategies is approximately $15M, currently deployed or committed across:
Ethereum
Arbitrum
Base
Supporting documentation and signed agreements are available in the data room:
https://drive.google.com/drive/folders/1zdsVCiBzNlr-MSDWa3pwHp86WzTU8lD5
Several partners are already in discussion to allocate capital on Stellar.
What currently blocks deployment is the institutional access layer that this submission builds.
Additional ecosystem presence (2025–2026):
https://drive.google.com/file/d/1jsOTGfG9jF_nw2j6pCxfh87DaGOtseDC/view?usp=sharing
Alexis Mailley — CEO
Applied Mathematics graduate from INSA Lyon.
Completed the Uniswap Foundation mathematical modeling program in 2025.
Seven years in crypto. Designed the entire quantitative framework behind Lobster:
AMM V2 strategy models
arbitrage models
impermanent loss calculations
Previously advised institutional investors and DeFi protocols on liquidity strategy before founding Lobster.
Lobster was incubated at Station F and Binance Labs.
Advised by Nicolas Bacca, co-founder and former CTO of Ledger.
LinkedIn
linkedin.com/in/alexis-mailley
Nathan Hervier — CTO
Built the entire Stellar stack from scratch:
Soroban smart contracts
indexer infrastructure
execution layer
Finished 3rd worldwide at the Uniswap Hackathon (ETHGlobal Argentina, Nov 2025) on AMM contract work.
Finalist at:
ETHDenver
ETHGlobal Paris
LinkedIn
linkedin.com/in/nathan-hervier-536423253
GitHub
github.com/Elli610
Marc Beaudoin — Lead Quant
Background in arbitrage and market making in traditional finance before moving on-chain.
Designed and implemented Lobster’s cross-chain arbitrage engine, which powers the strategy currently used by paying clients.
GitHub
github.com/MrGabjea
Brief description
Preparation of the technical environment required before integration work begins.
This includes:
development environment configuration
creation of Stellar testnet accounts
setup of Allbridge sandbox accounts
setup of DFNS sandbox accounts
CI/CD pipeline for contract build, testing and deployment
initial deployment of Soroban contracts (Position Manager, Execution Router, Access Controller) to Stellar testnet
This deliverable establishes the technical foundation required for the integrations implemented in the following deliverables.
How to measure completion
development environment operational
CI/CD pipeline configured and executing builds successfully
Soroban contracts deployed on Stellar testnet
test transactions executed successfully against the deployed contracts
repository updated with deployment instructions
Estimated date of completion: 2 weeks
Budget: $12,500
Deliverable 2 — Allbridge Core Integration
Brief description
Following the infrastructure setup (Deliverable 1), the Allbridge Core SDK is integrated into the off-chain strategy execution service to enable automated capital bridging between EVM chains and Stellar.
The integration allows the algorithm to move capital cross-chain before executing liquidity strategies on Stellar.
The system includes:
automated trustline checks and creation
Soroban state restoration before transaction submission
webhook receiver processing bridge confirmation events
cross-chain arbitrage flow using the Arb Reserve mechanism
This enables the off-chain algorithm to bridge capital from EVM networks to Stellar, execute a strategy, and bridge funds back when necessary.
How to measure completion
USDC successfully bridged from an EVM testnet wallet to a Stellar testnet account
transaction hash published in the project repository
automated trustline creation functioning
cross-chain arbitrage flow demonstrated end-to-end
Estimated date of completion: 2 weeks
Budget: $13,800
Deliverable 3 — Stellar Wallets Kit Integration and Strategy Dashboard
Brief description
Development of the Lobster strategy dashboard using Scaffold Stellar, with wallet connectivity through Stellar Wallets Kit v2.
Supported wallets include:
Freighter
xBull
Albedo
LOBSTR via WalletConnect v2
The dashboard allows users to:
connect a Stellar wallet
view LP positions and balances
monitor pool performance from the Lobster analytics engine
interact with Soroban contracts
A prototype version of the dashboard already exists. This deliverable connects it to the production backend and finalizes wallet integrations.
How to measure completion
live dashboard accessible via public URL
LP position data displayed from the analytics engine
Freighter wallet connects and signs a testnet transaction
LOBSTR wallet connects via WalletConnect and signs a transaction
network switching between testnet and mainnet operational
Estimated date of completion: 1.5 week
Budget: $9,200
Brief description
Integration of Stellar Broker into the off-chain execution service to provide best-execution routing across:
Soroswap
Aquarius
Phoenix
the native Stellar SDEX
Instead of interacting directly with individual DEX contracts, the off-chain algorithm routes swaps through Stellar Broker, which executes all trade legs within a single ledger using channel accounts.
Quotes returned by Stellar Broker are validated against the Lobster analytics engine before any transaction is submitted.
If Stellar Broker becomes unavailable, a fallback mechanism automatically switches execution to direct DEX interactions.
How to measure completion
Swap executed across at least two DEXs within a single Stellar testnet ledger
Transaction hash published in the repository
Fallback execution demonstrated when Stellar Broker is unavailable
Estimated completion date
2 weeks
Budget
$11,200
Deliverable 5 — DFNS Institutional Custody Integration
Brief description
Integration of DFNS MPC threshold signatures to enable institutional-grade transaction signing for the off-chain execution service.
DFNS does not hold funds. It only handles transaction signing using distributed key shares, ensuring that no single party ever holds the full signing key.
The integration includes:
Stellar wallet creation through DFNS
Soroban transaction signing via MPC
support for fee-bump transactions
policy engine configuration for automated approval thresholds
Webhook events from DFNS update the Lobster dashboard in real time.
Audit logs are exported in formats compatible with MiCA CASP compliance requirements.
How to measure completion
Soroban transaction signed via DFNS MPC on Stellar testnet
Transaction hash published in the repository
DFNS approval policy active, demonstrating both auto-approve and multi-approver flows
Audit log export functioning in at least one format
Estimated completion date
4 weeks
Budget
$23,300
Brief description
Deployment of the complete Lobster integration stack on Stellar mainnet and execution of the first live institutional liquidity strategy.
The off-chain algorithm orchestrates the full pipeline:
capital bridged from an EVM wallet
routing through Stellar Broker across multiple DEXs
LP position opened via Soroban smart contracts, signed through DFNS MPC custody
Contract storage TTL monitoring is activated from day one to ensure production stability and prevent contract state expiration.
How to measure completion
All Soroban contracts deployed on Stellar mainnet
End-to-end flow executed on mainnet, including:
capital bridged from EVM
multi-DEX swap via Stellar Broker
LP deposit signed via DFNS
Transaction hashes published in the repository
Dashboard displaying live mainnet data
Estimated completion date
3 weeks
Budget
$17,200
Deliverable 7 — Onboarding Documentation and Production Monitoring
Brief description
Creation of developer and institutional onboarding documentation covering all four integrations:
Allbridge Core
Stellar Broker
DFNS
Stellar Wallets Kit
Documentation includes a full API reference and endpoint collection to support integration with the Lobster execution infrastructure.
Production monitoring is implemented to track:
indexer synchronization
API performance
Soroban contract storage TTL
DFNS signing activity
Alerts are configured for critical system failures and infrastructure issues.
How to measure completion
Documentation published publicly covering all four integrations
Production monitoring dashboard live with alerts configured
Estimated completion date
4 weeks
Budget
$27,800
Two co-founders, plus freelancers and engineers we bring in depending on the work. We already have a full Stellar stack in production: indexer, analytics engine, Soroban contracts across three DEXs.
Alexis Mailley, CEO
Seven years in crypto. Applied mathematics degree from INSA Lyon, went through the Uniswap Foundation program for financial and mathematical modeling. I built the quant layer behind Lobster Protocol: the V2 AMM formulas, arbitrage condition modeling, pool scoring for efficiency, profitability and stability. Before starting Lobster Protocol I spent two years advising professional investors and DeFi projects on liquidity strategy and protocol design.
LinkedIn
Nathan Hervier, CTO
Five years in crypto, been shipping since day one. He co-founded and ran several companies as CTO, built and deployed smart contracts across multiple blockchains, and has been a finalist at a long list of major hackathons. He placed third worldwide at the Uniswap hackathon at ETH Global Argentina in November 2025, out of hundreds of teams. He also competed at ETH Denver and ETH Global Paris. He teaches blockchain development on the side. For Lobster Protocol he architected and deployed everything we run on Stellar: the Soroban contracts, the indexer pipeline, the full on-chain execution layer.
LinkedIn . GitHub
Marc Beaudoin, Lead Quant
Built arbitrage and market making systems in traditional finance for years. Moved on-chain to tackle LP optimization and options pricing problems. Designed our cross-chain arbitrage engine and is the driving force behind our B2B product acceleration.
GitHub
We also work with two engineers focused on data indexing and smart contract integration.
Alexis Mailley
No other submissions.