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.
Enterprise Blockchain Development & Security Consulting
Need blockchain software development that ships on time? Tired of dev teams that ghost?
Smart contracts, protocol audits, DeFi apps, TON development & cross-chain integrations delivered by engineers who've shipped 15+ Web3 products
Audited protocols trust us to ship secure smart-contract systems before production. Every demo shows real testnet transactions.
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
Sequencer liveness probe simulating downtime scenarios to validate L2-to-L1 force-inclusion paths and delayed inbox processing.
Security Focus
Sequencer uptime + force inclusion paths
Failover < 12s
Force-include tested
Automated fuzzing campaign targeting Cairo smart contracts for arithmetic overflows, reentrancy patterns and felt252 edge cases.
Security Focus
Cairo edge cases + arithmetic safety
12k iterations
3 edge cases caught
Cross-domain messenger validation ensuring L1-L2 message integrity, withdrawal proof verification and challenge period enforcement.
Security Focus
Bridge invariants + withdrawal proofs
7-day challenge
100% proof coverage
Heimdall checkpoint submission monitoring with validator signature aggregation and Bor block finality verification.
Security Focus
Checkpoint finality + validator consensus
256 block epochs
2/3+ signatures
Custom subnet validator set rotation testing with warp message verification and cross-subnet communication security.
Security Focus
Subnet isolation + warp messages
4 validators rotated
0 invalid warps
We deliver security-first blockchain products that survive audits and mainnet.
Our 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.
Hire 7BlockLabs
We plug in as your blockchain product squad—whether you need a sprint to MVP, hands-on support post raise or an extended core team.
Our engineers bring experience across chains, languages and tooling stacks so we can launch and iterate with the best fit technology—not force-fit a favourite.
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.
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.
Fixed scope and timeline to deliver a well-defined MVP or feature set.
Cross-functional squad that scales with your roadmap and velocity goals.
Flexible monthly bucket for improvements, audits, maintenance and on-call support.
Unsure what works best?
Book a 15-min scoping callWe document the frameworks, checklists and hard-earned lessons that shape how we build blockchain products with our partners.
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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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