Blockchain Integrations
dApps, smart contracts and connected applications.
We develop blockchain integrations that connect wallets, smart contracts and on-chain data to usable applications. The work can support a new dApp, a staking or NFT product, or a specific feature in an existing system, with a clear scope for implementation, testing and operation.
Where blockchain fits your product
Blockchain can be useful when a product needs shared transaction records, digital asset ownership or interaction with an existing network. We first assess whether those requirements justify the additional integration and operating work, or whether a conventional application and database would be sufficient.
Our work covers application and smart contract integration in the MultiversX and Ethereum ecosystems. We define what belongs on-chain, what stays in your backend and how the two exchange data before choosing an implementation.
dApp and wallet integration
We connect web applications to wallets, smart contracts and blockchain data through SDKs, APIs and backend services. Users need to see which network they are using, what they are signing and whether a transaction is pending, confirmed or unsuccessful.
The interface and backend also need to handle rejected signatures, delayed data and failed requests. Our cross-chain bridge case study describes application and contract integration work carried out alongside the client’s engineering team.
Smart contract development and integration
We develop contract logic and connect applications to existing contracts. Depending on the network and codebase, this can involve Solidity for Ethereum/EVM or Rust for MultiversX. The starting point is a clear specification of state changes, permissions and the operations users can perform.
We test expected behavior and failure cases, document administrative controls and plan deployment or upgrade steps where supported. Tests and implementation reviews support delivery; an independent security audit is a separate scope to agree with a specialist before release.
Staking applications and dashboards
We build interfaces and backend integrations for staking and delegation, including wallet connection, contract interaction and views of balances, rewards and transaction history. The application should explain the protocol’s fees and withdrawal rules and distinguish confirmed data from pending actions.
Operator tools can include status views, monitoring and alerts, with infrastructure responsibilities agreed separately. Our staking provider case study outlines work on a staking interface and smart contract integrations.
NFT catalogs and marketplace integration
We develop applications for browsing collections, displaying NFT metadata and media, and connecting users to marketplace activity. The work can include wallet-based ownership views, collection management and backend services that retrieve and prepare content for the interface.
Aggregation and a full trading marketplace have different requirements. We agree which operations belong in your application and which remain with an existing provider. Our NFT marketplace case study describes an aggregator developed with the client’s technical team.
Security and release readiness
We define access controls, signing responsibilities, transaction validation and monitoring as part of the architecture. Contract permissions and any administrative keys need explicit owners, documented procedures and a plan for responding to incidents.
Before release, we address review findings and validate the application against the agreed contracts and network. Where regulatory requirements apply, your legal and compliance advisers define the obligations; we implement the agreed technical controls and prepare documentation for review.
From assessment to a controlled release
We start with your existing systems, target network, user journeys and operating responsibilities. A focused testnet pilot can validate a contract interaction or application workflow before committing to a wider implementation.
We then agree the delivery scope, estimates, testing and any independent audit dependencies. Production release includes deployment checks, monitoring and a handover covering configuration, permissions and support. The schedule follows the scope and review requirements.
Frequently asked questions
How much does blockchain development cost?
Cost depends on the contracts, wallet and network integrations, application features and operating requirements. We estimate a defined first stage after assessment, separating development from network fees, infrastructure, external providers and any independent security audit.
How do we choose between Ethereum and MultiversX?
We compare the contracts and integrations already in place, target users and wallets, transaction requirements, fees and operating model. A testnet pilot can validate important assumptions. The choice follows the product requirements and the team’s ability to maintain the integration.
Does development include an independent smart contract audit?
Development includes implementation review, testing and documentation. An independent security audit is a separate engagement with a specialist. We can prepare the code and test evidence for that review and address findings within an agreed scope.
Can you add blockchain features to an existing application?
Yes. We can connect an existing frontend or backend to wallets, contracts and on-chain data through APIs and SDKs. We define which data and operations belong on-chain, how transaction status reaches the application and how failures are handled.
How long does it take to launch a dApp?
The schedule depends on contract complexity, existing components, wallet support, infrastructure and review requirements. We estimate a focused testnet release first, then agree the checks and dependencies for production. Independent audit availability and remediation can affect the launch date.