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Entalogics
Industries /Crypto & Web3

Web3
development, built
secure and shipped.

In Web3, a security mistake doesn't get patched, it gets exploited. Our Web3 development services cover dApps, smart contract development, and wallet-connected products, architected so transaction flows and key handling hold up against real adversarial pressure, not just a testnet demo.

Plan a Web3 build See the playbook
Security-first design Multi-chain ready Audit-friendly code
Why Entalogics for Web3

Four things every
Web3 build actually needs.

In Web3, security mistakes are irreversible. These are the foundations we never skip.

Key safety01

Keys never touch the app tier.

Signing flows and session handling are built so private keys stay exactly where they belong — inside the user's wallet, never passing through your servers.

Transaction UX02

Complex flows, simple surfaces.

Gas estimation, slippage protection, and multi-step transaction sequencing collapse into confirmation screens a non-technical user can actually read before they sign.

Multi-chain03

One product, many chains, cleanly.

A chain abstraction layer means adding Solana or Base later doesn't mean rewriting the product logic you already shipped for Ethereum.

Audit readiness04

Code auditors can actually read.

Clean contract interfaces and real test coverage turn a smart contract audit into a week of review, not a month of the auditor reverse-engineering your intent first.

What we ship

Six Web3 product surfaces.
One quality bar.

The blockchain development work we deliver most — from wallet connect to custom browser workflows.

P01
Wallet-connected dApps
Connect flows, transaction signing, and multi-wallet support — the dApp development groundwork every Web3 product needs before a single custom feature gets built.
WALLETCONNECTRAINBOWMETAMASKCOINBASE
P02
DeFi interfaces
Swap, stake, lend, and pool management, with slippage protection and gas optimization built into the DeFi development from day one, not patched in after a bad trade.
UNISWAPAAVECOMPOUND1INCH
P03
NFT platforms
Minting, marketplace listings, royalty enforcement, and reveal mechanics — NFT marketplace development that has to survive a mint-day traffic spike, not just a demo.
OPENSEACUSTOMIPFSARWEAVE
P04
Custom browser workflows
Extension-based tools, transaction automation, and portfolio alerts — Web3 products that live in the browser instead of a dedicated app.
CHROME EXTCUSTOMALCHEMYMORALIS
P05
Backend & indexing
Event indexing, transaction history, and portfolio aggregation — the backend layer that makes on-chain data actually queryable instead of a black box.
ALCHEMYTHE GRAPHQUICKNODECUSTOM
P06
Ops & analytics
Protocol dashboards, TVL tracking, and incident alerting, built for the team running the protocol, not just the users trading on it.
DUNEGRAFANADATADOGCUSTOM
Beyond the six

Beyond the six surfaces.

Tokenization, governance, and exchange infrastructure come up often enough to name directly.

RWA tokenization

Turning real-world assets (real estate, equity, invoices) into on-chain tokens, with the compliance and custody questions answered before mint, not after.

DAO development

Governance contracts, voting mechanisms, and treasury management for protocols that need real decentralized control, not a Discord server with extra steps.

Crypto exchange development

CEX, DEX, or hybrid order-matching and liquidity infrastructure, with KYC/AML handled where it's actually required.

The bar

Security,
wired into every transaction flow.

Transaction safety, session security, and audit-friendly architecture embedded from day one.

Key isolation
Private keys stay out of the app tier entirely — wallet connect patterns enforce this at the architecture level, not as a policy nobody checks.
Best practice
Transaction simulation
Every user-facing transaction gets simulated before it's signed, so a revert gets caught pre-flight instead of after gas is spent.
Best practice
Session security
Secure session handling, CSRF protection, and rate limiting on every signing endpoint — the part of Web3 security that has nothing to do with the smart contract itself.
OWASP · SOC 2
Contract review
Static analysis and real test coverage requirements, with audit-prep documentation ready before an external smart contract audit even starts.
Best practice
Access control
Multi-sig admin access, role-based permissions for protocol operations, and timelocks, so no single compromised key can move funds alone.
Best practice
Incident response
Monitoring and alerting tuned to anomalous transaction patterns, with a runbook ready before an incident happens, not written during one.
SOC 2
Signature case

A multi-chain
DeFi platform.

A DeFi startup was bleeding users to failed transactions and confusing signing flows spread across three chains. We rebuilt the transaction UX, indexing layer, and admin tooling in nine weeks — a real DeFi development turnaround, not a redesign.

BEFORE
34% transaction failure rate · single chain · no admin tooling
AFTER
8% transaction failure rate · 3 chains live · full ops dashboard
reduction in failed transactions76%
chains live at launch3
TVL within 60 days$18M
full platform live9 wks
Engagement shape

Eight weeks to a
mainnet-ready build.

A typical Web3 engagement — security review and testnet deployment run in parallel from week one.

W01–02
Threat model + architecture
Transaction flows mapped, key-safety review done, chain strategy picked, integrations inventoried — the Web3 architecture decisions made before testnet, not discovered on it.
W03–05
Core build
Wallet connect, transaction flows, and the indexing layer, shipped sprint by sprint as testable vertical slices running live on testnet.
W05–08
Security + mainnet prep
Transaction simulation, real test coverage, and audit-prep documentation written out, with testnet load testing standing in for the traffic mainnet will actually see.
W08+
Mainnet & handoff
Mainnet rollout staged in phases, monitoring live, runbook handed over. Retained support or a full handoff — your call.
Stack

Web3 development tools we
reach for first.

Chosen for Web3 security and multi-chain support first, popularity a distant second — these hold up when a chain reorgs or a mempool turns adversarial.

Languages
TypeScript · Solidity · Rust
Frontend
Next.js · wagmi · viem · RainbowKit
Chains
Ethereum · Polygon · Arbitrum · Base · Solana
Infrastructure
Alchemy · QuickNode · The Graph · IPFS
Security
Slither · Foundry · Hardhat · OpenZeppelin
Observability
Dune · Datadog · Grafana · Custom indexing
Definition

What does Web3 development actually cover?

Web3 development means building products on top of blockchain infrastructure instead of a centralized server: dApps, smart contracts, DeFi platforms, NFT marketplaces, and crypto wallets, where users hold their own keys and assets instead of trusting a company's database with them. The hard part isn't writing a smart contract — Solidity is a small language. It's that mistakes are irreversible: a signing flow that confuses a user, a contract bug missed before mainnet, or a key that touches a server it shouldn't all turn into an exploit instead of a bug report. Custom Web3 development earns its cost specifically where that adversarial pressure is highest — real funds, real attackers, no undo button.

FAQ

Sharp questions,
straight answers.

Yes. DeFi interfaces, NFT platforms, custom browser extensions, indexing backends — full Web3 product surfaces, not just a connect-wallet button bolted onto a landing page.
Yes, by default rather than by request. Key isolation, transaction simulation, and audit-ready contract code are architecture decisions made in week one, not a checklist run before launch.
Yes. Chain abstraction is designed in from the start, so adding a new network later is a deployment, not a rewrite of your core product logic.
Yes. We write contracts with clean interfaces and real test coverage, and prepare the documentation an external smart contract audit needs — so the audit takes a week to review, not a month to reverse-engineer first.
Yes — see "Beyond the six surfaces" above. RWA tokenization and DAO governance come up regularly, and we scope them the same way: threat model first, code second.
A focused build — wallet connect plus one or two product surfaces — typically runs eight to nine weeks, the shape above. Cost is fixed-quote after the threat-model week, once chain strategy and integration scope are genuinely known, not pulled from a generic range.
Yes. The engineers who map the threat model in week one are the ones shipping mainnet in week nine — no handoff to a different team mid-build.
Founder-direct

Tell us what you're
launching.

Thirty minutes with the founder gets you a senior Web3 lead in the room, plus a straight read on your transaction flows, security posture, and chain strategy.

Book a 30-min architecture callCalendly · founder-directSend a written briefAsync — scoping doc back in 48hhello@entalogics.comEmail — replies within 24h