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© 2025 Stellar Development Foundation
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By Unstoppable Money
Adapters (Integration Modules)
In this architecture, adapters are off-chain routing modules implemented as API integrations and SDK connectors, not smart contracts.
Each adapter:
Integrates with a specific liquidity source (Stellar Broker, Near Intents, Axelar)
Fetches quotes via external APIs / RPC endpoints
Normalizes liquidity data into a unified routing format
Constructs executable swap transactions
Handles signing payloads and execution flows via the wallet
Adapters are implemented as TypeScript-based SDK modules within our Swap Kit and act as the core integration layer for all liquidity sources. All routing logic is handled off-chain and no Soroban smart contracts are deployed within this scope.
1. Stellar-Centric Liquidity Routing Infrastructure
We are building a universal swap infrastructure where Stellar acts as the primary liquidity and execution layer, not just another chain in routing. All swap routes are first evaluated within the Stellar ecosystem via Stellar Broker. Cross-chain execution is only used when it provides a better outcome in terms of price, execution efficiency, or reliability.
This positions Stellar as:
the core liquidity hub
the default execution layer for all supported routes
2. Stellar-Native Liquidity via Stellar Broker
We will integrate Stellar Broker as the core native liquidity routing layer.
Stellar Broker aggregates liquidity from:
Soroswap (AMM)
Aquarius (AMM / liquidity layer)
Stellar DEX
Stellar Classic AMMs
The adapter normalizes liquidity across these sources and enables optimal pricing and execution for all Stellar-native swaps.
3. Cross-Chain Liquidity via Near Intents and Axelar
We will integrate Near Intents and Axelar as cross-chain execution layers through dedicated adapters.
Near Intents adapter enables intent-based execution and liquidity sourcing across external chains
Axelar adapter enables cross-chain messaging and asset transfers
These integrations allow Stellar assets (XLM and tokens) to interact with external ecosystems while keeping Stellar as the primary routing base layer.
4. Routing / Solver Engine
The system includes an off-chain routing engine acting as a solver, responsible for discovering and selecting optimal swap paths across all integrated liquidity sources.
Routing process:
All adapters (Stellar Broker, Near Intents, Axelar) are queried for quotes
Routes are normalized into a unified format (amount out, fees, execution time, risk)
The solver evaluates routes based on:
Output amount (best price)
Execution complexity (number of steps & time)
Execution reliability (success probability across providers)
The optimal route is selected and returned to the user.
Execution priority:
First: Stellar-native liquidity via Stellar Broker
Second: Cross-chain routes via Near Intents and Axelar
This ensures Stellar remains the primary execution layer while still enabling global liquidity access.
5. Developer-Facing Swap SDK
We will expose all routing and execution functionality through a developer-facing Swap SDK.
The SDK includes:
Routing engine (solver)
Stellar Broker integration
Near Intents and Axelar adapters
Developers can integrate Stellar-native and cross-chain swaps via a unified API without implementing custom routing logic or bridge infrastructure.
6. Web-Based Non-Custodial Swap Interface
All integrated providers (Stellar Broker, Near Intents, Axelar) will be available through our non-custodial web swap interface.
This allows users to:
Swap Stellar assets natively or cross-chain
Access optimal routing powered by the solver
Maintain full self-custody throughout execution
Ecosystem Impact
This architecture enables Stellar assets to access a broader multi-chain liquidity network while exposing Stellar liquidity to external ecosystems through a unified routing layer.
$97.0K
Since our last update, Unstoppable Wallet has continued to grow through organic adoption and community-driven distribution.
Key metrics
430,000+ total installs across iOS, Android, and F-Droid (+30,000 since the last update)
~15,000 Weekly Active Users (WAU)
1,500+ GitHub stars and 333 followers on the GitHub organization
840,000+ subscribers on Telegram
200,000+ followers on X
Strategic partnerships
In 2025, Unstoppable Wallet established a strategic partnership with THORChain, a leading cross-chain DEX protocol. In collaboration with their core team, we built THORChain’s first dedicated web swap interface and aggregator, strengthening our role as an infrastructure provider within the cross-chain ecosystem.
Community
Unstoppable Wallet has built a strong community of privacy-focused users and developers who support the project due to its open-source architecture, non-custodial design, and strict no-tracking policy. This community-driven adoption has been a key driver of product growth and long-term user retention.
Supporting evidence:
https://ibb.co/YYBdfV9
Brief description
Development of a Stellar Broker Integration Module (off-chain API adapter), implemented as an API-based integration layer connecting the routing system to Stellar-native liquidity.
This module integrates Stellar Broker as the primary liquidity source and aggregates liquidity from:
Soroswap (AMM)
Aquarius (AMM / liquidity layer)
Stellar DEX
Stellar Classic AMMs
The adapter:
Fetches quotes via Stellar Broker APIs
Normalizes liquidity into a unified routing format
Constructs executable Stellar transactions
Enables native Stellar swap execution within the routing system
This component establishes Stellar as the primary liquidity and execution layer of the system.
How to measure completion
Stellar Broker successfully integrated into the routing infrastructure
Native Stellar swaps executed through the adapter
Liquidity aggregated from Stellar DEX and AMMs
Successful transaction execution validated on the Stellar network
Open-source repository published with technical documentation
Estimated date of completion
April 28
Budget
$ 15,200
Brief description
Implementation of cross-chain integration modules (off-chain API adapters) for Near Intents and Axelar, enabling interoperability between Stellar and external blockchain ecosystems.
Near Intents Adapter
Integrates intent-based swap execution via API
Enables external liquidity sourcing and off-chain execution coordination
Axelar Adapter
Integrates cross-chain messaging and bridging infrastructure
Enables asset transfers and execution across chains
These adapters:
Fetch and normalize cross-chain routes
Construct execution payloads
Enable routing between Stellar assets and external ecosystems
Integrate with the routing engine (solver) for unified route evaluation
Combined with the Stellar Broker adapter, this enables both native and cross-chain swap execution within a unified routing system.
How to measure completion
Near Intents adapter implemented and integrated into routing layer
Axelar adapter implemented and integrated into routing layer
Cross-chain routes involving Stellar assets successfully executed in a test environment
Routing system receives, evaluates, and compares cross-chain quotes
Adapters published in open-source repository with documentation
Estimated date of completion
May 20
Budget
$ 16,700
Brief description
Development of a Universal Routing Engine acting as a solver, responsible for discovering, evaluating, and selecting optimal swap routes across all integrated liquidity sources.
The solver aggregates quotes from:
Stellar Broker
Near Intents
Axelar
Routes are normalized into a unified structure (amount, fees, execution time, steps, risk).
The solver evaluates routes based on:
Output amount (best price)
Execution complexity (number of steps and time)
Execution reliability (success probability across providers)
The routing logic prioritizes Stellar-native liquidity via Stellar Broker before considering cross-chain execution paths.
This ensures:
Stellar remains the primary execution layer
Cross-chain execution is only used when beneficial
How to measure completion
Routing engine aggregates all integrated providers
Quote aggregation and normalization implemented
Optimal route selection logic validated
Successful routing between Stellar-native and cross-chain swaps
Routing performance benchmarks documented
Estimated date of completion
June 25
Budget
$ 24,500
Brief description
Release of the Unstoppable Developer Swap SDK, providing a unified interface for accessing routing and execution functionality.
The SDK exposes:
Routing engine (solver)
Stellar Broker integration
Near Intents and Axelar adapters
It allows developers to:
Integrate Stellar-native swaps
Enable cross-chain swaps involving Stellar assets
Avoid implementing custom routing or bridge logic
The SDK will include:
Developer documentation
Example integrations
How to measure completion
Public SDK repository released
Documentation and example integrations published
SDK exposes routing engine and all adapters via a unified API
Testnet swaps successfully executed via SDK
External developer testing and feedback incorporated
Estimated date of completion
July 13
Budget
$ 14,800
Brief description
Development and launch of a production-ready web-based swap interface fully integrated with the routing engine (solver) and the Swap SDK.
This interface acts as the primary user-facing access layer to the routing infrastructure and exposes all integrated liquidity providers through a unified UX.
The interface will:
Integrate directly with the routing engine (solver) to fetch optimal routes
Support Stellar-native swaps via Stellar Broker
Support cross-chain swaps via Near Intents and Axelar
Display routing details (price, execution path, estimated time)
Construct and execute transactions through the wallet
The interface leverages the same architecture exposed via the SDK, ensuring consistency between developer and user access layers.
Web swap interface deployed and publicly accessible
Interface connected to routing engine (solver) and all adapters
Users able to execute:
Stellar-native swaps
Cross-chain swaps involving Stellar assets
Routing results correctly displayed and validated (price, execution path)
End-to-end swap flows successfully executed on mainnet
July 28
Budget
$ 12,300
Brief description
Final production deployment and infrastructure hardening of the full routing system, including adapters, routing engine (solver), SDK, and web interface.
This deliverable focuses on ensuring production-grade reliability, performance, and observability of the swap infrastructure.
It includes:
Deployment of all components on mainnet
Monitoring and logging infrastructure for:
routing decisions
execution success / failures
cross-chain interactions
Reliability improvements and failure handling:
fallback routing strategies
retry mechanisms
Performance optimization of routing and execution flows
Final validation of routing behavior:
Stellar-first execution logic
cross-chain fallback when beneficial
Full routing infrastructure operational on mainnet
Successful swap execution across:
Stellar Broker
Near Intents
Axelar
Monitoring and logging systems deployed and functional
Routing decisions and execution outcomes observable and documented
Public documentation and release notes published
No critical issues remaining after production rollout
August 20
Budget
$ 13,500
Our team consists of 7 engineers with over 15 years of experience in full-stack development, specializing in Kotlin, Swift, Solidity, Rust, JS, Ruby on Rails, and C++.
We’ve built a Lightning Bitcoin wallet and created kits and providers for EVM networks and Bitcoin, implemented atomic swaps for Bitcoin-Bitcoin Cash, and developed a native SPV library for Bitcoin. Additionally, we created mini-apps for the Telegram ecosystem and smart contracts for a major mempad in the TON ecosystem.
Aibek Esengulov – CEO & Founder
Aibek Esengulov is a technology entrepreneur known for his contributions to the tech industry. He co-founded Make Use Of, a technology and internet applications blog launched in July 2006, which focuses on software, web applications, and technology news.
In 2015, Esengulov co-founded Horizontal Systems, a company specializing in fintech, blockchain, and software solutions. Through Horizontal Systems, he co-developed Unstoppable Wallet, a decentralized multi-blockchain wallet designed to provide users with control over their crypto assets without the risk of being locked out by centralized systems.
Connect with Aibek: LinkedIn & GitHub
Ermat Alymbaev – CTO & iOS Team Lead
Ermat holds a degree in Computer Science and brings over 15 years of experience in mobile application development. As a full-stack developer with a strong background in blockchain technology, he specializes in writing smart contracts for Ethereum, Solana, and Ton blockchains. Ermat's expertise in developing scalable and secure blockchain solutions has made him a key figure in driving innovations across multiple decentralized platforms. His work focuses on ensuring that smart contracts are efficient and functional across different blockchain ecosystems, contributing significantly to the overall success of the projects he works on.
Connect with Ermat: GitHub
Esenbek Kadyr – Senior Engineer
Esenbek holds a degree in Computer Science and has over 10 years of experience in software development, with a focus on mobile applications and backend systems. He is a participant in the International Olympiad in Informatics (IOI) and has made significant contributions to the blockchain space. Esenbek is the author of Bitcoin and Ethereum libraries/kits and was also one of the developers of the SPV library for Bitcoin—one of the first native libraries in the world. With extensive experience in programming languages such as Ruby, C++, Swift, and Kotlin, he has developed a deep expertise in creating innovative solutions for blockchain integration, positioning him as a key player in the development of decentralized technologies.
Connect with Esenbek: LinkedIn & GitHub
Rafael Muhamedzyanov – Senior Engineer
Rafael holds a degree in Computer Science from Boğaziçi University, one of the top universities in Turkey. With over 10 years of experience in mobile application development, he specializes in Android-based applications. His deep knowledge and expertise in building scalable and user-friendly mobile solutions have made him a valuable contributor to numerous successful projects in the mobile tech space.
Connect with Rafael: LinkedIn & GitHub
Bakyt Abdrasulov – Android Team Lead
Bakyt holds a degree in Computer Science and has over 18 years of experience in software development. He is the Team Lead of the Android team for the Unstoppable Wallet and a Full-stack engineer with extensive expertise in developing native applications. Bakyt’s leadership in mobile development, combined with his deep technical skills, has made him a key figure in the success of the Unstoppable Wallet. His ability to work across both frontend and backend development ensures that the applications he works on are robust, scalable, and user-friendly.
Aibek Esengulov
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