Discover the Stellar Connector for Hyperledger Cacti

stellar connector for hyperledger cacti

The Importance of Blockchain Interoperability

As blockchain technology transforms, interoperability stands out as a critical component for future growth and integration. Numerous blockchain networks are emerging, each tailored to specific use cases such as finance, supply chain, and healthcare.

The need for these networks to interact seamlessly is becoming increasingly apparent. Without interoperability, these specialized solutions operate in silos, limiting their potential and hindering the broader adoption of blockchain technology.

There will not be a one-size-fits-all solution in light of the maturing blockchain ecosystem. Different blockchains excel in different areas; some offer robust security features, while others provide high transaction speeds or advanced functionalities like smart contracts.

This specialization underscores the necessity for a framework that allows these diverse networks to communicate and transact with one another efficiently.

However, achieving interoperability in the blockchain space is a multifaceted challenge involving multiple layers and varying degrees of integration.

Levels of Interoperability

Interoperability involves different types and levels that vary greatly in nature. It can mean enabling smart contracts to interact within the same blockchain, facilitating communication between layer 1 and layer 2 solutions, or bridging entirely different blockchain protocols.

Each level presents unique challenges, such as ensuring data consistency, managing transaction throughput, and maintaining security. More than a technical requirement, interoperability is a cornerstone for innovation and scalability.

By allowing data and assets to move freely across diverse blockchain networks, it opens up new opportunities for collaboration and business processes, paving the way for more complex and integrated applications.

Hyperledger Cacti: A Solution for Blockchain Interoperability

Hyperledger Cacti emerges as a powerful solution to the complex challenge of blockchain interoperability. Designed to connect heterogeneous blockchain networks, Cacti facilitates seamless transactions and data sharing across different platforms, addressing one of the most significant barriers to the broader adoption of blockchain technology.

Cacti stands out by providing a modular and pluggable architecture that allows for customizable integration solutions. Its flexibility means that it can support a wide range of blockchain protocols without requiring them to coalesce into a single chain.

Instead, Cacti enables these diverse networks to maintain their autonomy while interacting smoothly with each other. This approach not only preserves the unique strengths of each blockchain but also enhances their collective potential through interoperability.

At the core of Cacti are several key components that facilitate efficient and secure cross-network interactions. These components address a variety of interoperability scenarios, from synchronizing data and operations across different ledgers to enabling complex multi-step transactions that span multiple blockchains.

By tackling the challenges of data consistency, transaction throughput, and security, Cacti ensures that these interactions are both robust and scalable.

Flexibility Through a Pluggable Architecture

One of the most compelling aspects of Hyperledger Cacti is its pluggable architecture, which offers unparalleled flexibility for developers and businesses.

This architecture is designed to be modular, allowing users to leverage existing plugins tailored to various use cases and distributed ledger technologies (DLTs).

By utilizing these plugins, developers can quickly and efficiently integrate different blockchain networks, ensuring a standardized structure that simplifies the complexity of multi-network environments.

Leveraging Modular Plugins

This modularity means that instead of building interoperability solutions from scratch, users can focus on the unique aspects of their specific use cases while relying on Cacti’s robust framework for common functionalities.

For instance, if a project requires cross-chain asset transfers, developers can use pre-built plugins to handle the heavy lifting, ensuring security and efficiency without reinventing the wheel.

Supporting Diverse Blockchain Protocols

Cacti’s architecture supports a wide range of blockchain protocols, enabling seamless integration without compromising the autonomy of each network.

This flexibility is crucial for maintaining the unique strengths of individual blockchains while enhancing their collective potential through interoperability.

By providing a comprehensive set of tools and plugins, Cacti empowers organizations to innovate and deploy solutions that are both specialized and interoperable.

Enhancing Development and Security

Using Cacti allows businesses to focus on the distinct features of their applications, leveraging the existing robust structure for common operations. This not only accelerates development time but also enhances the reliability and security of the integrations.

Whether dealing with data synchronization, complex transaction processing, or decentralized application interoperability, Cacti’s pluggable architecture ensures these processes are streamlined and manageable.

The Role of Connectors in Hyperledger Cacti

Hyperledger Cacti’s architecture effectively separates business logic from the underlying blockchain technologies, allowing developers to focus on the application layer without dealing with the complexities of each specific blockchain.

This separation enhances modularity and flexibility, as the business logic layer defines the rules and processes for specific use cases while connectors manage interactions with blockchain networks.

These specialized connectors handle all interactions, including connecting to nodes, fetching data, deploying smart contracts, and executing transactions, abstracting the complexities away from the business logic layer.

Key Functions of Connectors

Connectors are a key component of this architecture. Each connector is tailored to the unique protocols and functionalities of its target blockchain, ensuring efficient and secure communication.

For instance, a connector for Hyperledger Besu would handle tasks such as:

  • Interacting with Ethereum-compatible smart contracts;
  • Managing gas fees;
  • And ensuring transaction finality.

Besu, with its compatibility with Ethereum protocols, requires precise handling of these operations to maintain the integrity and efficiency of interactions with the Ethereum network.

Benefits of Using Connectors

By leveraging pre-built connectors, developers can accelerate development and improve security. These connectors come with built-in functionalities that handle the complexities of blockchain interactions, allowing developers to focus on the unique aspects of their use cases.

This streamlined approach ensures consistent and reliable interoperability across different blockchain networks, facilitating seamless data exchange and transaction processing.

Using standardized connectors simplifies the integration process and enhances the scalability of blockchain solutions. New networks can be added without disrupting existing setups, ensuring that solutions remain adaptable to the rapidly evolving technological landscape.

Stellar Connector: Enhancing Interoperability

Cheesecake Labs has been actively collaborating with the Hyperledger Cacti community to develop a Stellar connector, leveraging the Stellar public ledger and its ecosystem.

This effort aims to enhance the interoperability capabilities of Hyperledger Cacti, allowing Stellar to connect seamlessly with a broader ecosystem of blockchain networks.

Advancing Financial Applications

By integrating Stellar through the Cacti project, we are enabling more robust and versatile financial applications that can operate across multiple blockchain environments.

The Stellar connector in Hyperledger Cacti represents a significant advancement in blockchain interoperability, particularly for financial applications.

Benefits of Stellar Integration

Stellar, known for its efficiency in handling cross-border payments and asset transfers, adds substantial value to the Cacti framework by enabling seamless integration with other blockchain networks. The development of the Stellar connector is an ongoing process that will continue to evolve.

Integration with Soroban

The first version, already integrated into the Cacti project, fully supports Soroban, Stellar’s smart contracts platform. This integration allows any Cacti solution to deploy and initialize smart contracts on Stellar, manage these contracts, and execute smart contract transactions.

By involving Stellar’s entire programmability layer in interoperable transactions, developers can now create sophisticated smart contract-powered use cases with Stellar as an integrated ledger.

To further our commitment to open-source development, we leveraged the capabilities of Stellar Plus, Cheesecake Labs’ open-source JavaScript library for developing on Stellar.

This library focuses on delivering robust and battle-tested solutions, promoting an open evolution of these tools by the community.

By leveraging the Stellar connector, developers, and businesses can focus on their unique use cases while relying on Cacti’s robust and flexible framework to handle the complexities of blockchain interactions.

This not only accelerates development but also enhances the reliability and security of cross-network transactions.

Exploring Use Case Possibilities

The integration of the Stellar connector within Hyperledger Cacti opens up a wealth of opportunities for innovative blockchain applications.

Central Bank Digital Currency (CBDC) Pilot in Brazil

For instance, Brazil’s pilot Central Bank Digital Currency (CBDC), known as Real Digital, aims to facilitate secure and efficient digital transactions within the country. 

Leveraging a Hyperledger Besu-powered infrastructure called DREX, Real Digital can be collateralized on the Besu network, enabling a bridged representation on Stellar.

This setup allows for seamless cross-chain transactions involving national currencies, enhancing financial interoperability.

Decentralized Finance (DeFi) Applications

In the decentralized finance space, the Stellar connector within the Cacti framework allows applications running on Stellar smart contracts to leverage data from other blockchain networks.

For example, a DeFi platform on Stellar can use price feeds from Ethereum-based markets, ensuring accurate and timely information for executing smart contracts.

Liquidity Pool Linking

Furthermore, the Stellar connector facilitates the linking of liquidity pools across different markets by enabling seamless integration within the Cacti framework.

This connectivity allows businesses to offer more competitive trading options and improve the overall efficiency of financial markets, fostering a more integrated and fluid financial ecosystem.

These are just a few examples of the vast variety of use cases that can be built on top of it.

Next Steps for Stellar Integration

Looking forward, there are two main directions we aim to pursue to enhance Hyperledger Cacti’s integration with Stellar.

First, we plan to continue evolving the Stellar connector itself. This involves expanding its capabilities to fully leverage Stellar’s features, such as adding support for classic transactions and other key functionalities.

Ongoing refinements will ensure that the connector remains robust, efficient, and capable of meeting diverse application needs. Our goal is to make the Stellar connector a comprehensive tool that maximizes Stellar’s potential within the Cacti framework.

Next, we are focusing on building well-defined standards for secure asset exchange protocols. These standards are crucial for enabling Delivery Versus Payment (DVP) use cases and leveraging concepts like Hash Time-Locked Contracts (HTLCs).

By developing these protocols on the logic layer and utilizing the Stellar connector, we can provide smart contract implementations that ensure secure and reliable asset exchanges.

These ready-to-use capabilities will make it easier for use cases to adopt these protocols, fostering interoperability and security across different blockchain ecosystems.

This approach aims to enhance trust and efficiency in asset exchanges, benefiting a wide range of applications from financial services to DeFi.


Hyperledger Cacti represents a significant leap forward in addressing the complex challenge of blockchain interoperability.

With its modular and pluggable architecture, robust connectors, and support for diverse blockchain protocols, Cacti enables seamless and efficient cross-network interactions.

The ongoing development of the Stellar connector and other integrations showcases the dynamic nature of this project and its potential to drive innovation in the blockchain space.

We are excited about the future and the endless possibilities that Hyperledger Cacti and the Stellar connector bring to the blockchain ecosystem.

As we continue to evolve these technologies, we invite developers, businesses, and blockchain enthusiasts to join us on this journey.

Whether you are looking to contribute to the open-source project, build solutions leveraging Cacti and Stellar, or explore new use cases, your participation is invaluable.

Looking to build blockchain solutions?

For those interested in contributing to the project or seeking to build innovative blockchain solutions, we encourage you to reach out to Cheesecake Labs.

Our team is dedicated to fostering collaboration and advancing the state of blockchain technology. Together, we can push the boundaries of what’s possible and create a more connected, interoperable, and efficient blockchain ecosystem.

About the author.

Fabricius Zatti
Fabricius Zatti

With several years of experience in customer services, my background goes through several areas of technical support, from incident handling and real-time support to on-site service delivery and Knowledge Management through the KCS Methodology, as well as project and product management.