# Interconnected Liquidity Network (ILN)

## TLDR

The **Interconnected Liquidity Network (ILN)** is a 2-second cross-chain bridging solution, evolved from Clip Finance’s decentralized solver pools into a blazing-fast bridge. By leveraging a solver-as-a-service model and retail liquidity pools, ILN provides near-instant asset transfers and high APYs across 30+ chains. Critically, any new chain can onboard in under one hour via a self-serving kiosk, eliminating the need for manual approvals or lengthy integrations. This plug-and-play approach empowers blockchains, liquidity providers, and users to access unified liquidity, frictionless cross-chain movement, and a streamlined user experience.

For more background on our decentralized solver pools, please see the [Clip Finance Decentralized Solver Network Litepaper](https://docs.clip.finance/clip-finance-infrastructure/decentralized-solver-network-litepaper).

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## Introduction

### The Cross-Chain Challenge

Decentralized finance (DeFi) has expanded across a multitude of blockchains, Layer 2 networks, and app chains. While this growth is promising, interoperability has become a significant challenge. Many existing bridges suffer from:

* Slow Transaction Speeds: Transfers can take minutes—or even hours—to finalize.
* Limited Liquidity: Bridges often lack robust liquidity pools, leading to high slippage or blocked transactions.
* Complex Integration: Onboarding new chains typically requires permission and lengthy manual processes.

### Evolution from Decentralized Solver Pools

Clip Finance pioneered decentralized solver pools, where solvers compete to fill user transaction intents. Building on this technology, we’ve evolved into a blazing-fast bridging solution called the Interconnected Liquidity Network (ILN). By combining solver-as-a-service with retail liquidity and self-serve chain integration, ILN addresses the fundamental challenges of cross-chain asset movement.

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## Core Principles

1. **Solver-as-a-Service**
   * ILN transactions are facilitated by our flagship solver, with future plans to open this model to other solvers.
   * Solvers handle the heavy lifting of bridging, locking assets on the source chain, and releasing liquidity on the destination chain—ensuring fast and cost-effective transactions.
2. **Retail Liquidity Pools**
   * Inspired by the pool-based approach of other solutions, ILN’s liquidity pools are funded by retail liquidity providers.
   * Instead of spinning up servers and managing infrastructure to become a solver, users can simply deposit their liquidity into ILN’s pools.
   * Liquidity providers earn high APYs for enabling instant cross-chain transfers.
3. **Blazing-Fast Settlement**
   * By using intent-based transactions and solver-as-a-service, ILN achieves 2-second bridging speeds (as opposed to minutes or hours).
   * This near-instant experience is a key differentiator in user satisfaction and DeFi adoption.
4. **Self-Serving Kiosk for New Chains**
   * Unlike many bridging solutions that require manual approvals or complex integration, ILN offers a self-serving kiosk.
   * Any new chain—whether it’s a Layer 2 or an app chain—can add their RPC endpoint, deposit an initial amount of liquidity, and connect to the ILN in under one hour.
   * This plug-and-play approach dramatically reduces onboarding time and grants immediate access to 30+ chains in the network.
5. **Unified Liquidity Layer**
   * Once integrated, chains tap into a global liquidity layer that’s shared across all participants.
   * Users benefit from consistent access to capital, minimal slippage, and near-instant transfers across a growing ecosystem of chains.

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## How It Works

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1. **User Initiates a Cross-Chain Transfer**
   * The user specifies the source chain, destination chain, and asset amount.
   * An intent is created and broadcast to the solver.
2. **Solver Locks Source Assets**
   * The solver locks or otherwise secures the user’s asset on the source chain.
   * Simultaneously, it releases an equivalent asset amount from the retail liquidity pool on the destination chain.
3. **Near-Instant Delivery**
   * The user receives their bridged asset on the destination chain in about 2 seconds.
   * Meanwhile, off-chain settlement finalizes any outstanding transactions or liquidity adjustments.
4. **Liquidity Provider Rewards**
   * Liquidity providers in ILN’s pools earn fees or APYs for enabling the solver to deliver instant cross-chain transactions.
   * This model scales as more users and blockchains join, increasing total liquidity and fee revenue.

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## General EVM Layer 2 Chain Case Study

### Background

An emerging EVM Layer 2 (L2) chain has a native Ethereum-L2 bridge but seeks to onboard users from multiple ecosystems (Polygon, Arbitrum, BNB Chain, etc.) in near real-time, not just from Ethereum.

### Integration Steps

1. **RPC Access**
   * The L2 chain provides ILN with an RPC endpoint, enabling the solver to read and write transactions on the chain.
2. **Initial Liquidity Deposit**
   * The L2 (or a designated liquidity provider) deposits a base amount of ETH (or another asset) into ILN’s L2-side pool.
   * When a user on Polygon bridges 1 ETH to the L2, the user instantly receives that 1 ETH from the pre-deposited pool.
3. **2-Second Bridge**
   * The bridging process typically completes in 2 seconds, drastically outperforming conventional 5-10 minute solutions.
   * The solver-as-a-service handles cross-chain settlement behind the scenes.
4. **Outcomes**
   * **Frictionless Adoption**: Users can move assets from 30+ chains to the L2 with near-zero wait times.
   * **Liquidity Gains**: The L2’s total value locked (TVL) increases as users bring more assets over.
   * **Competitive Edge**: Instant bridging differentiates the L2 chain in a crowded market, attracting dApps and end-users.

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## Comparison with Existing Bridges

| Feature                  | ILN (Clip Finance)                                         | Stargate                      | LayerZero                | Across                 | Others (Wormhole, Axelar, etc.)                 |
| ------------------------ | ---------------------------------------------------------- | ----------------------------- | ------------------------ | ---------------------- | ----------------------------------------------- |
| **Bridging Speed**       | \~2 seconds                                                | \~5-10 minutes                | Minutes                  | 1-15 minutes           | Minutes to hours                                |
| **Liquidity Model**      | Retail Liquidity + Solver-as-a-Service                     | Pool-based                    | Bootstrapped liquidity   | Cross-chain relayers   | Varies: typically selective or aggregator-based |
| **Chains Supported**     | 30+ (and growing)                                          | Selective                     | Growing                  | L2-centric             | Typically limited, slower expansions            |
| **Transaction Flow**     | Intent-based, solver executes instantly                    | Single-route bridging         | Multi-route bridging     | Single aggregator      | Usually aggregator or single bridging approach  |
| **Integration Model**    | Self-Serve Kiosk (No Permission, < 1 hour)                 | Permissioned                  | Usually permissioned     | Usually permissioned   | Usually permissioned or partial                 |
| **Settlement Mechanism** | Off-chain solver finalization                              | On-chain finality             | On-chain finality        | On-chain finality      | On-chain finality                               |
| **Security Approach**    | Solver staked collateral, fast settlement reduces MEV risk | Protocol-level security model | Configurable trust model | UMA-based verification | Multi-sig or guardian-based                     |

*(Exact times vary by chain load and finality.)*

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## Conclusion

The **Interconnected Liquidity Network (ILN)** is the next evolutionary step from Clip Finance’s decentralized solver pools, now adapted into a blazing-fast bridging solution. By utilizing a solver-as-a-service approach and retail liquidity pools, ILN delivers 2-second cross-chain transfers for a growing ecosystem of 30+ chains.

Any new chain can self-onboard in under one hour by simply adding an RPC endpoint and depositing initial liquidity—instantly gaining access to a unified liquidity layer and a vast user base. Liquidity providers benefit from high APYs, while users enjoy a frictionless, near-instant bridging experience.

As the blockchain landscape evolves, ILN stands out as a scalable, permissionless, and efficient solution for cross-chain interoperability, shaping the future of decentralized finance.

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**Get Involved**

* **Developers & Blockchains**: Integrate your chain using our self-serve kiosk for instant cross-chain liquidity in under one hour.
* **Liquidity Providers**: Deposit assets into ILN’s retail pools and earn high APYs for enabling near-instant bridging.

**Website**: [Clip Finance](https://www.clip.finance/)