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Blockchain Services

Cross-Chain
& Interoperability

Most products start on one chain. But as the ecosystem matures, users, liquidity, and opportunities spread across multiple networks. A product locked to one chain limits its addressable market.

Engagement

Blockchain Engineering

Typical Duration

6 – 12 weeks

Focus & Stack

LayerZeroChainlink CCIPHyperlaneOFTONFTArbitrumBaseOptimismPolygonSolana

We make products work across multiple blockchains. Moving tokens, syncing state, relaying messages, and creating unified user experiences that abstract the complexity of a multi-chain world. This is technically demanding work with real security considerations.

What we build

Omnichain Tokens (OFT/ONFT)

Tokens and NFTs deployed natively across multiple chains via LayerZero. No wrapped tokens, no bridge liquidity pools. Trustless cross-chain transfers.

Cross-Chain Messaging

Arbitrary data between contracts on different chains. Governance votes, state sync, remote function calls. Built with LayerZero, Chainlink CCIP, or Hyperlane.

Token Bridging

Custom bridge contracts or established protocols. Lock-and-mint, burn-and-mint, liquidity pool models. Rate limiting, monitoring, and emergency pause.

State Sync

Keeping data consistent across chains. Token supply tracking, governance state, user balances, configuration parameters. Handling latency, ordering, and conflict resolution.

Multi-Chain Architecture

Which contracts deploy where, how the frontend detects and switches chains, how transaction status is tracked across networks.

How it works

01

Requirements Step 1

Define what needs to move across chains, which chains, and the security/trust model.

02

Architecture Step 2

Design with documented trust assumptions, protocol selection, rate limiting strategy.

03

Implementation Step 3

Build with monitoring and emergency controls from the start.

04

Deployment Step 4

Deploy across target chains, verify, monitor for message delivery and supply consistency.

Deliverables

What you get

  • Cross-chain contracts deployed across target chains
  • Messaging integration with chosen protocol
  • Rate limiting and emergency pause capability
  • Real-time monitoring for message delivery and supply consistency
  • Documentation of trust assumptions and security model

Cross-chain protocols we ship with

There is no single best messaging protocol. The right choice depends on the chains involved, the trust model the product can accept, and what the team is willing to operate post-launch. We pick the protocol that fits the project, not the other way around. Most engagements end up using one of a handful of options, and we are deliberate about which.

On EVM-to-EVM messaging where the team wants composable settlement and tight integration with omnichain token standards like OFT and ONFT, LayerZero is usually the cleanest path. Where ecosystem coverage and finality guarantees are the priority, particularly across non-EVM chains, Wormhole tends to fit better. For cross-VM message passing that needs to reach Cosmos or other heterogeneous environments, Axelar handles the routing without the team having to assemble it themselves. Native bridges and Chainlink CCIP are the right call when the chains involved already have first-party paths and the project benefits from staying inside that trust model. IBC sits in the same category for Cosmos-native work. Where none of these fit, we have built in-house messaging, but only when the trade-off is worth the operational weight.

Where we have shipped this

On the LayerZero DvP project we built atomic, real-time settlement between security tokens and payment tokens across Polygon and Base, with the security side using ERC-3643 for compliance alignment. The hard part was guaranteeing both legs of the settlement either complete or revert across two chains, with no manual bridging in the user flow. LayerZero messaging was the right fit there because the project was EVM-to-EVM with strict atomicity requirements and an institutional user surface that could not tolerate cross-chain UX leakage.

Eclipse is the SVM-on-EVM project, a Solana Virtual Machine L2 that settles to Ethereum. We delivered the token launch experience, claim flows, vesting UX and TGE distribution, on the Eclipse SVM L2 itself. Mandala Chain is a different shape of cross-chain work. It is an L1 plus L2 stack on Polkadot, and we shipped the full DeFi suite, Uniswap V2 DEX, Aave V3 lending, staking and vesting, integrated into the Mandala Hub through shared Wagmi and Polkadot wallet infrastructure. Different chains, different trust models, different protocol choices.

The trade-offs we work through

Cross-chain is a series of trade-offs, and the right answer changes per project. Latency versus security is the one most teams underestimate. Faster message delivery generally means relying on a smaller validator set or weaker finality guarantees on the source chain. For a payments or settlement product, slower and stronger is the right call. For a UX-driven action where the user is waiting on a screen, sometimes it is not, and the work is in deciding consciously rather than defaulting.

Ecosystem coverage cuts the other way. A protocol that supports 70 chains is attractive until you realise you are now exposed to the security assumptions of all 70, even if you only deploy on three. Picking a narrower protocol with stronger guarantees on the chains you actually care about is often the better trade. Operating cost is the third lever. Each cross-chain message has a fee, and at scale the protocol choice changes the unit economics of the product. We model the message volume and the per-message cost during architecture, not after launch, because the cost shape decides whether a feature can run at the scale the product needs.

Networks we ship on

EVM ↔ EVM

3 projects as proof

Cross-chain delivery between EVM environments — atomic settlement, hub-style products and full DeFi suites with messaging routed via the protocol that fits the project. See the section above for how we choose.

EVM ↔ non-EVM

2 projects as proof

SVM-on-Ethereum-settlement L2 work (Eclipse) and Solana token-sale flows (Fjord Foundry). Cross-VM coverage where the project requires reaching beyond the EVM.

FAQ

Common questions

Need your product working across multiple chains?

Cross-chain is not a feature you bolt on. It’s an architecture decision that affects security, operations, and UX at every level. If you’re going multi-chain, it’s worth getting the foundations right.

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