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Crypto and Web3 onlySecurity review included

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Crypto and Web3 engineering

Crypto software development for exchanges, wallets and smart contracts

We design and build crypto exchanges, non-custodial wallets, smart contracts and trading bots on Solana, EVM chains and TON, with security review built into the work.

Discuss your project Chat on Telegram
  • Exchanges, wallets and smart contracts
  • Solana, EVM chains and TON
  • Security review before every launch

Crypto and Web3 only Security review included Fixed-scope quotes Client owns the code

Crypto Software Agency services in United States

Exchange development

Centralized order book and DEX or AMM builds.

Wallet development

Non-custodial, multi-chain and MPC wallets.

Smart contract development

Rust, Solidity and TON contracts.

Payment gateway and API

Merchant invoicing and webhook payment flows.

Trading bot development

Market making and arbitrage bots.

Audit and security review

Contract review and security testing.

Solana development

Anchor programs and high-throughput apps.

EVM chains development

Ethereum, Arbitrum, Base and BSC builds.

TON and Telegram Web3

Contracts and apps on TON.

DeFi staking protocols

Staking and yield contracts and interfaces.

Asset tokenization

Technical build of tokenized asset platforms.

Pricing and packages

Typical price ranges and timelines.

Typical packages

Ranges are typical and depend on scope, chains and integrations. A written quote follows a scoping call. Timelines assume timely feedback from your side.

  • Web3 dApp or wallet MVP: $8,500 to $16,000

    A multi-chain wallet or dApp with token swap and sign-in. Typical delivery is 3 to 4 weeks once the scope is agreed.

  • Turnkey DEX or AMM: $14,000 to $28,000

    Factory, router, staking and liquidity contracts with an interface. Typical delivery is 4 to 6 weeks.

  • Enterprise exchange (CEX): $28,000 to $65,000

    A custom order book engine, KYC integration and cold storage design. Typical delivery is 8 to 12 weeks.

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How we work and what to ask any agency

How we workAsk any agency
Focus Crypto and Web3 projectsWhat have they shipped on-chain?
Security Review before every launchWho reviews the code, and when?
Key handling Designed with you, in writingWho can ever move user funds?
Compliance We flag it, you decideWho handles licences and KYC?
Code ownership You own the codeDo you get the repository?
Guarantee None, risks stated up frontBe wary of any promise of safety

How it works

  1. Tell us what you want to build

    A wallet, exchange, contract, bot or payment flow, and the chains involved.

  2. We scope and quote

    You get an architecture outline, a timeline and a written price range.

  3. We build in milestones

    Working builds are shared at each milestone, with a security review before launch.

What does crypto software development cover here?

We build the software behind crypto products. That means exchanges with an order book or an AMM, non-custodial wallets, smart contracts, payment gateways and APIs and trading bots.

Crypto only is the focus. We do not take on unrelated web projects, so the people scoping your build spend their time on keys, contracts, chains and exchange infrastructure.

Whether you are starting from an idea or extending a product that already exists, we begin with a written scope so everyone agrees on what will be built, in what order and what a typical timeline looks like.

Which blockchains do we build on?

We work on three families of chains:

  • Solana, with Rust programs and the Anchor framework.
  • EVM chains such as Ethereum, Arbitrum, Base and BSC, with Solidity.
  • TON, including apps that live inside Telegram.

We also build staking and yield protocols and the technical side of asset tokenization platforms. The chain you pick should follow your users and your product, and we will say so if we think another chain fits better. Many products also need a web or mobile front end, a backend and monitoring around the contracts, and we build those parts too.

How does security review fit into a build?

Smart contracts are hard to change once deployed, and a bug can mean lost funds. So review happens during the build, not only at the end. We write tests as we go, review the code before each milestone and plan a final review before launch.

A review lowers risk. It cannot remove it, and nobody can honestly promise that a contract is free of bugs. For larger contracts we suggest an independent audit and security review and will tell you when we think one is needed.

  1. Message us. Say what you want to build, the chains involved and your timeline.
  2. We scope and quote. You get an architecture outline, a typical timeline and a written price range.
  3. We build in milestones. You see working builds at each milestone and pay as milestones are completed.
  4. Review and launch. Security review comes first, then deployment with you.

You own the code and the accounts you pay for. See pricing and packages for typical ranges.

What do we not do?

We build software. We do not give legal or financial advice, hold your customers' funds or operate an exchange for you. Licences, KYC and AML duties, sanctions rules and securities law differ by country, and you are responsible for them. We will flag the technical points where regulation affects the design.

We also do not promise outcomes such as users, trading profit, token price or compliance results. Tokenomics and marketing are your decisions. We sign an NDA on request.

To begin, simply chat with us on WhatsApp at +1 (929) 450-3261 or on Telegram.

Questions about crypto software agency in United States

How much does crypto software development cost?

It depends on scope, chains and integrations. Typical ranges are $8,500 to $16,000 for a wallet or dApp MVP, $14,000 to $28,000 for a DEX or AMM and $28,000 to $65,000 for a centralized exchange. A written quote follows a scoping conversation.

How long does a typical build take?

A wallet or dApp MVP typically takes 3 to 4 weeks, a DEX or AMM 4 to 6 weeks and a centralized exchange 8 to 12 weeks. These are typical timelines once the scope is agreed, and they depend on timely feedback from your side.

Do you hold our keys or funds?

No. Key handling is designed with you and written down before building starts. We do not hold client funds or operate exchanges. The aim is that you decide who can ever move user funds, and the written design shows exactly how that works.

Who handles licences and compliance?

You do. Requirements such as licensing, KYC and AML depend on your country and your product. We build the technical pieces, such as KYC provider integration and access controls, and we flag where rules affect the design. We are not a law firm, so please ask a lawyer.

Do we own the code?

Yes. The client owns the code and the accounts it pays for. You receive the repository, deployment notes and handover documentation at the end of the project, and you can bring in another team afterward if you choose to do so.

From the blog

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