Hyperlane’s open interoperability framework enables builders to explore and innovate new solutions for moving assets and data across chains. Here’s how Khalani Network is adopting Hyperlane to build their new cross-chain primitive: collaborative solver networks.

Introduction

Khalani Network, an intents infrastructure protocol, recently announced Arcadia — their flagship chain designed for collaborative solver networks. On Arcadia, solvers can easily share resources and services to execute user intents more efficiently. Now, Khalani is launching HyperFlow, the first of many collaborative solver networks on Arcadia. HyperFlow, built using Hyperlane infrastructure, helps solvers receive and transmit information to execute user intents with more speed and efficiency.

Intents Are Transforming Cross-Chain UX

Intents are designed to make blockchain transactions feel as smooth as tapping a credit card to pay for coffee. When a user wants to do something, such as “Swap token A for token B”, they state a request, or intent, while specialized agents called solvers work to fulfill their request. However, while intents make the user experience a breeze, the same can’t be said for the solvers hard at work behind-the-scenes to make it all possible.

What About The Solvers?

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To better understand the challenges solvers face today, it helps to first understand what happens when a solver is fulfilling an intent:

1. Indexing — First, solvers must have a way to know when users are expressing intents. This often requires building custom infrastructure specific to the intent protocol or underlying chain.
2. Execution — Once they’ve received a user intent, solvers must then be able to figure out the best way to execute an intent (i.e. which liquidity pool should they use), and then actually proceed to execute it. Depending on the protocol, they may be actively competing with other solvers at this step.
3. Settlement- Once an intent has been executed, the user journey ends. However, the solver, who still needs to be paid, must then prove they fulfilled the intent, which can also vary by protocol.
4. Rebalancing- If a solver uses their own capital to fulfill intents, they may also have to manage any imbalances across different chains.

The Challenge

Solvers’ bread and butter is execution: the better they execute intents, the better off both users and solvers are. The challenge, however, is that solvers today still have to deal with all the other steps — indexing, settlement, and rebalancing. These steps, while critical, create additional complexity for solvers, limiting how efficiently they can actually execute user intents.

Furthermore, running solvers at scale becomes even more challenging, as supporting a new chain or application typically means manually rewriting code for these new integrations. If a solver manages their own capital, they constantly need to deploy more capital to maintain sufficient balances across multiple chains. This only becomes more difficult over time in the ever-expanding multichain world we live in today.

But users love intents, and intents are only becoming more popular over time. So what’s to be done?

Khalani’s Solution: Collaborative Solver Networks

Introducing the HyperFlow, the first collaborative solver network on Arcadia. By using Hyperlane’s messaging protocol, HyperFlow eliminates inefficiencies in how solvers receive, process, and deliver data that is critical for intents. Solvers can now operate in a single, shared environment where they can execute intents with greater speed and efficiency

By leveraging Hyperlane’s message passing protocol, HyperFlow ensures solvers can:

• Detect and respond to user intents as soon as they are submitted.
• Transmit settlement proofs once an intent has been executed.

HyperFlow simplifies the hard parts of the intent fulfillment process for solvers — particularly data indexing and settlement — so that solvers can focus on their core strength: execution. Not only can solvers execute intents more efficiently, they can also start to manage and execute more complex intents over time. This lays the groundwork for a future where users can easily do anything across multiple chains, from simple asset transfers to complex cross-chain trading strategies and beyond.

How It Works

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Arcadia uses a global Pub/Sub (Publish & Subscribe) event system to coordinate information from different chains. Pub/Sub is a common type of messaging system where one party publishes events, and the other party can subscribe to listen to them.

Here’s how it works in HyperFlow:

1. Event Publication — When users submit intents on an app, HyperFlow uses Hyperlane to publish these events to Arcadia’s global system⁠⁠
2. Subscription — Solvers subscribe to specific types of events they care about, for instance intents from a particular app or chain they are interested in serving. When these events occur, solvers are automatically notified.
3. Settlement — After executing an intent, solvers publish their settlement proofs.

With Hyperlane for integrated messaging and settlement, HyperFlow creates an efficient communication system where events are published, solvers are notified, and settlements are verified — all under a single, shared environment.

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Why Build With Hyperlane?

Ambitious initiatives like HyperFlow need interoperability to scale. Khalani recognized that Hyperlane’s open framework was a perfect fit to launch Arcadia’s first collaborative solver network on, for several key reasons:

• Open, Permissionless To Use — Hyperlane is an open, permissionless framework for interoperability that anyone can use however they need to. Khalani was able to adapt Hyperlane’s infrastructure in a way that was uniquely suited to their specific needs — without requiring any permissions or approval beforehand.
• Coverage At Scale — With Hyperlane deployed on Arcadia, any of the 140+ chains that Hyperlane supports can connect to Arcadia. The more chains Arcadia supports, the more solvers can join, and the bigger HyperFlow grows.
• Customizable: Hyperlane is built on a fully modular architecture, and is highly customizable. This allows any chain that wants to leverage HyperFlow to customize its parameters, such as security, while still maintaining full interoperability with the rest of the network.
• Future-Proof: With Hyperlane’s modular architecture, Khalani can easily upgrade its security parameters without needing to rewrite their entire codebase. If a new cutting-edge cross-chain security mechanism is made available, it can be implemented as a Hyperlane ISM, and Khalani can then easily upgrade their own chain security.

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What’s Next?

HyperFlow represents a new shift in how solvers can execute user intents. Whereas solvers previously had to manage execution, settlement, and rebalancing manually — these tasks can now be automated, allowing solvers to focus on executing intents more efficiently.

With Arcadia in mainnet beta, its journey is just getting started — as Khalani continues to integrate with more partners, HyperFlow will expand across more chains, support new assets, and unlock a new chapter of cross-chain transactions.

Khalani Expansion.

Get Involved

• If you’re a solver, developer, or app looking to integrate solver-based automation, reach out to Kevin and Tannr from the Khalani team:
• Explore building with Hyperlane ⏩ Hyperlane Docs

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More about Hyperlane

Hyperlane is the open interoperability framework. It empowers developers to connect anywhere onchain and build applications that can easily and securely communicate between 130+ blockchains. Importantly, Hyperlane is fully open-source and always permissionless to build with.

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