Design, build and launch production dApps with secure smart contracts and great UX.
Protocol and infrastructure engineering tailored to scalability, security and cost.
Comprehensive audits with actionable findings to harden your contracts and apps.
Integrate wallets, chains and on-chain data into your existing products seamlessly.
Technical due diligence, tokenomics and materials that help you raise with confidence.
Asset and message bridge implementations with rigorous security best practices.
Interoperable architectures enabling users to move value across ecosystems.
End-to-end product delivery: front-end, contracts, infra and observability.
AMMs, lending, staking and yield systems engineered for safety and capital efficiency.
Central-limit order books and swap DEXes with performant indexers and analytics.
Battle-tested smart contracts with test suites, audits and upgrade paths.
Dashboards and tooling to manage digital assets across chains and wallets.
Real-world assets and on-chain representations with compliant token standards.
Fungible and non-fungible token contracts, vesting and distribution tooling.
High-performance apps and tokens tailored for the TON ecosystem.
On-chain game economies, marketplaces and player inventory systems.
Primary/secondary sales platforms with royalties, auctions and trait filters.
Metadata pipelines, minting flows and wallet integrations for NFTs.
Submit your contracts for a free security quick-scan.
Submit your token model for a free stress test.
Pre-launch yes/no checklist before audits and mainnet.
Complete delivery framework for Web3 security engineering.
Answers on security architecture, scalability and L1/L2 choices.
Stop burning runway on missed deadlines and failed audits. We architect, build, and ship your smart contracts and dApps, mainnet-ready from sprint one.
From DeFi protocols to DAO governance systems — production-grade blockchain products shipped with zero critical findings.
Free Architecture Review
In 30 minutes we will review your smart contract architecture, flag security risks, and map the fastest path to audit-ready deployment. No pitch deck, no obligation.
Every claim we make, we prove on testnet. Real transactions, real exploits caught, real protocols hardened.
Live zk proof attestation run showing how we gate relayers, enforce guardian quorums and block replay windows before mainnet.
Security Focus
Replay attacks + cross-chain state integrity
45s proof window
Dual attestor quorum live
Collateralized debt position replay with forced oracle deviation to prove double-withdrawal and oracle manipulation defenses hold.
Security Focus
Oracle manipulation + double withdrawals
3 feeds cross-checked
Auto pause < 400ms
Anonymous vote audit trail pushed through IPFS Merkle proofs to surface tampering, replay signatures and fraud attempts.
Security Focus
Anonymous vote fraud + oracle proofs
Tree depth: 42
0 mismatched hashes
Want us to do this for your protocol?
Schedule security reviewWe deliver security-first blockchain products that survive audits and mainnet.
Submit your contracts or token model and get real findings from our engineers — no pitch deck, no obligation.
Submit your contracts for a security quick-scan by a senior engineer.
Submit your token model for stress testing by a token economist.
We review 5 projects per month
No credit card. No strings. Just real findings.
Ready to discuss your project?
Book a free 30-min architecture review. No obligation, NDA available.
Structure and communication that keep every engagement transparent. We keep you close to critical decisions without adding overhead.
Our product leads and blockchain architects refine requirements with you, highlighting technical risks, opportunities and measurable outcomes.
We shape a delivery roadmap, resource plan and target architecture so every stakeholder understands the path to mainnet.
Ready to start at Step 1?
Book a scoping callShare a few details and a senior engineer will respond within 24 hours with initial architecture recommendations. No sales pitch -- just technical guidance.
Prefer direct outreach?
We reply within 24 hours on working days.
Whether you need a sprint team for a critical launch or an embedded unit to scale long-term, we tailor engagement to your operating rhythm.
From $5,000
Fixed scope and timeline to deliver a well-defined MVP or feature set.
From $8,000/mo
Cross-functional squad that scales with your roadmap and velocity goals.
From $3,000/mo
Flexible monthly bucket for improvements, audits, maintenance and on-call support.
Unsure what works best?
Book a 15-min scoping callOur squads ship production-grade protocol components, integrations and experiences. Choose the track you need or let us design the bespoke mix that accelerates your roadmap.
Bring your company to the next level with innovative blockchain infrastructure, custom governance and verifiable data trails.
Expand the possibilities of your business by connecting wallets, bridges and on-chain data to your existing products.
Launch new protocols or extend existing networks with validators, on/off ramps and aligned token economics.
Attract external builders with SDKs, documentation and testing sandboxes that make shipping on your chain effortless.
Not sure which track? Let's figure it out together.
Book a callFrameworks, checklists and hard-earned lessons from shipping blockchain products.
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Mobile WalletConnect integration has changed materially since 2024 (Reown migration, Link Mode, iOS/Android deep-linking constraints). Below is a pragmatic, code-first path to ship native iOS/Android with WalletConnect that clears SOC2 and
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Digital twins for physical products aren’t about buzz—they’re about traceable, fraud-resistant SKUs that move through ERP, POS, and reverse logistics without friction. Below is a pragmatic blueprint to bind every unit you ship to a verifiab
Summary: WalletConnect v1 is shut down, and migration to v2 now affects connection reliability, mobile deep linking, session security, and procurement sign-off. This pragmatic guide shows exactly what to change in code, what to measure, and
Summary: Enterprise marketers are sitting on dormant wallet signals—mint, swap, bridge—that never reach Braze/SFMC in time to matter. This play shows how to convert on-chain events into governed, SOC2-friendly off‑chain triggers that lift r
CosmWasm + IBC let DeFi teams ship cross-chain features that actually clear on production timelines—without inventing a bridge. Below is a pragmatic path to interchain “read + write” that hits P50 packet SLAs, contains risk, and translates
Summary: Web3 gaming analytics break when you treat “daily active wallets” as “daily active users.” Here’s a concrete, implementation-first playbook to reconcile on-chain DAW with real user counts, hardened for account abstraction (ERC‑4337
Can’t find what you’re looking for? Reach out and we’ll share more context on how we work and what we can ship together.
Quick, straightforward answers about our blockchain development services, tech stack, locations, and post‑launch support.
Our engineers ship across chains, languages and tooling — so we use the best fit, not force-fit a favourite.
7Block Labs is a trading name of JAYANTH TECHNOLOGIES LIMITED.
Registered in England and Wales (Company No. 16589283).
Registered Office address: Office 13536, 182-184 High Street North, East Ham, London, E6 2JA.
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