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Metalayer is Caldera’s comprehensive interoperability solution that transforms fragmented blockchain networks into a unified Internet of Chains. Built specifically for the rollup-centric future, Metalayer provides the infrastructure needed to move value and execute actions seamlessly across multiple networks.

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The Challenge

The multi-rollup ecosystem faces critical fragmentation:
  • Complex bridging experiences with multiple providers, varying security models, and confusing UX
  • Asset isolation where tokens remain trapped on their origin chains
  • Developer overhead requiring integration with numerous point solutions
  • Liquidity fragmentation across hundreds of separate networks

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The Solution

Metalayer solves these challenges through two core solutions:

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Bridge Aggregation

A unified interface that aggregates quotes from native bridges, intent-based protocols, and specialized providers to find optimal routes for any cross-chain transfer.

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Omnichain Tokens (Metatoken)

A new standard enabling tokens to exist natively across multiple chains with unified supply and the same contract address everywhere.

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Why Metalayer?

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vs Point Solutions

Rather than integrating with multiple bridge APIs that may become obsolete, Metalayer provides future-proof infrastructure that incorporates new bridge technologies and optimizations as they emerge. One integration gives you access to the entire ecosystem of cross-chain solutions.

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vs Other Aggregators

Ecosystem Integration: Unlike generic aggregators, Metalayer is deeply integrated with the Caldera rollup ecosystem, providing day-zero connectivity for every new rollup launch and shared liquidity across 50+ connected networks.

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Network Effects

Every integration strengthens the entire network:
  • Shared Liquidity: Aggregated demand across all Metalayer-connected applications
  • Competitive Solver Markets: More integrations attract more solvers, improving pricing and speed
  • Unified Developer Experience: Consistent APIs and tools across the entire rollup ecosystem

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Developer Benefits

  • Single Integration: One SDK replaces dozens of bridge-specific integrations
  • Automatic Updates: New bridge providers and optimizations added without code changes
  • Unified Interface: Consistent experience regardless of underlying bridge technology
  • Proven Infrastructure: Built on battle-tested Hyperlane messaging with custom security enhancements

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Simple Integration

Get started with just a few lines of code: 
import { MetalayerClient } from '@metalayer/sdk';

const client = MetalayerClient.init({
  apiKey: 'your-api-key-here',
  environment: 'production',
});

// Quote from Arbitrum to ApeChain
const quoteData = await client.quote({
  sourceChainId: 42161,
  sourceTokenAddress: '0x0000000000000000000000000000000000000000',
  destinationChainId: 33139,
  destinationTokenAddress: '0x0000000000000000000000000000000000000000',
  amount: BigInt('1000000000'),
  senderAddress: '0xYourAddress',
});

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How It Works

Metalayer operates as a three-layer architecture:
  1. Execution Layer: Aggregates quotes and routes transactions optimally
  2. Solver Ecosystem: Network of specialized entities that fulfill cross-chain requests
  3. Settlement Layer: Secure messaging backbone built on Hyperlane for final settlement
Learn more about how Metalayer works in our technical deep-dive.

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Explore Solutions

Bridge Aggregation

Unified cross-chain transfers with optimal routing

Omnichain Tokens

Universal token portability across networks

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Get Started

SDK Integration

Add cross-chain functionality to your app

Bridge Widget

Embed a complete bridge interface

How It Works

Learn about the technical architecture

Contract Deployments

View router locations and chain IDs