Free this month: Senior engineer reviews your smart contracts for vulnerabilities (5 spots left)
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Trusted by technical leaders at 10+ Web3 companies

Launch Audit-Ready
Blockchain Products
in 90 Days.

Stop burning runway on missed deadlines and failed audits. We architect, build, and ship your smart contracts and dApps, mainnet-ready from sprint one.

30-min callNDA availableNo obligation
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100%Audit Pass Rate
10+Products Shipped
$0Post-Launch Exploits
90dAvg. Time to Mainnet
Ethereum, Solana, Polygon, Base, Avalanche, StarkNet & more

Free Architecture Review

Get a senior engineer's eyes on your architecture, before you build

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.

30 minNDA on request
Proof

Don't trust. Verify.

Every claim we make, we prove on testnet. Real transactions, real exploits caught, real protocols hardened.

Solana zk bridge demo validating replay-safe proofs in the testnet explorerSolana zk bridge demo validating replay-safe proofs in the testnet explorer (animated)
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Solana testnetzk bridge
Demo 01

Solana zk bridge replay hardening

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

EVM Sepolia security demo catching oracle manipulation on-chainEVM Sepolia security demo catching oracle manipulation on-chain (animated)
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SepoliaCDP monitoring
Demo 02

EVM Sepolia oracle failover drill

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

IPFS tree traversal demo validating DAO vote integrityIPFS tree traversal demo validating DAO vote integrity (animated)
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IPFSMerkle proofs
Demo 03

IPFS vote ledger integrity sweep

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

Ready to ship with confidence?

We deliver security-first blockchain products that survive audits and mainnet.

Schedule security review
Free services

We do the work before you sign anything

Submit your contracts or token model and get real findings from our engineers, no pitch deck, no obligation.

Free Smart Contract Audit

Submit your contracts for a security quick-scan by a senior engineer.

  • Vulnerability assessment with severity ratings
  • Gas optimization recommendations
  • Architecture review and best-practice check
  • 30-min walkthrough call with findings
Get My Free Audit

We review 5 projects per month

No credit card. No strings. Just real findings.

Free Tokenomics Stress Test

Submit your token model for stress testing by a token economist.

  • Supply/demand imbalance analysis
  • Vesting schedule cliff and unlock modeling
  • Governance and economic attack surface review
  • 30-min walkthrough call with findings
Get My Free Stress Test

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.

Book Architecture Review
Process

A cooperation model built for clarity and momentum

Structure and communication that keep every engagement transparent. We keep you close to critical decisions without adding overhead.

  1. Our product leads and blockchain architects refine requirements with you, highlighting technical risks, opportunities and measurable outcomes.

  2. 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 call
Start a conversation

Tell us what you're building, we'll tell you how to ship it faster

Share 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.

Takes 30 seconds

10+ blockchain products shipped, 100% audit pass rate

Your data is encrypted and never shared with third parties.

Collaboration

Engagement models built around your roadmap

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.

Project-Based

Best for: Clear requirements, strict deadline

From $5,000

Fixed scope and timeline to deliver a well-defined MVP or feature set.

  • Fixed deliverables
  • Predictable budget
  • Weekly demos
  • QA & release support
Kick off in 1-2 weeks
Scope your project

Dedicated Team

Best for: Growing products & ongoing delivery

From $8,000/mo

Cross-functional squad that scales with your roadmap and velocity goals.

  • Engineers + PM/Designer
  • Capacity on demand
  • Sprint rituals
  • Velocity metrics
Kick off in 1-2 weeks
Build your team

Retainer / Support

Best for: Post-launch iterations & upkeep

From $3,000/mo

Flexible monthly bucket for improvements, audits, maintenance and on-call support.

  • Monthly hours
  • Priority support
  • Bug SLA
  • Ad-hoc features
Kick off in 1-2 weeks
Start retainer

Unsure what works best?

Book a 15-min scoping call
Solutions

We take care of blockchain development from concept to scale

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.

Enterprise

Enterprise Solutions

Bring your company to the next level with innovative blockchain infrastructure, custom governance and verifiable data trails.

  • DAO & governance platforms
  • Blockchain micropayments
  • Supply chain & traceability
Learn more
Integration

Blockchain Integration

Expand the possibilities of your business by connecting wallets, bridges and on-chain data to your existing products.

  • Centralized & hybrid exchanges
  • Decentralized marketplaces
  • CRM / ERP blockchain integrations
Learn more
Ecosystems

Blockchain Ecosystems

Launch new protocols or extend existing networks with validators, on/off ramps and aligned token economics.

  • Token launches & vesting
  • Custom L1 / L2 deployments
  • Cross-chain bridges & messaging
Learn more
Dev Tools

Developer Tooling

Attract external builders with SDKs, documentation and testing sandboxes that make shipping on your chain effortless.

  • SDKs & API gateways
  • CLI / IDE extensions
  • Analytics dashboards & explorers
Learn more

Not sure which track? Let's figure it out together.

Book a call
Insights

Engineering insights from 7BlockLabs

Frameworks, checklists and hard-earned lessons from shipping blockchain products.

Blockchain TechnologyJan 10, 202611 min read

Building 'Algorithm-Audited' Financial Statements for DAOs

Summary: Stop closing DAO books in spreadsheets. This playbook shows exactly how to ship “algorithm‑audited” financial statements—attested onchain, reconciled to treasury movements, and governed by policy‑as‑code—so your finance team hits c

Read article
CryptocurrencyJan 10, 202611 min read

'Crypto-Native' Estate Planning: Tools for Digital Inheritance

Summary: Most crypto inheritance “solutions” break at implementation. Here’s how to ship a production-grade, probate-aware estate plan that actually executes on-chain across BTC and EVM—using Miniscript timelocks, EIP‑7702 smart EOAs, verif

Blockchain ApplicationsJan 10, 202611 min read

How to Build 'Supply Chain' Trackers for Luxury Goods

How to Build ‘Supply Chain’ Trackers for Luxury Goods

Blockchain TechnologyJan 10, 202613 min read

Developing 'Private Social Networks' with Onchain Keys

Developing 'Private Social Networks' with Onchain Keys

Blockchain TechnologyJan 10, 202612 min read

How to Tokenize 'Intellectual Property' for AI Models

How to Tokenize “Intellectual Property” for AI Models - Summary: Most AI teams can’t prove what their models were trained on or license-bound to—yet the EU AI Act’s 2026 enforcement window and publisher standards like RSL 1.0 make verifiabl

Blockchain ApplicationsJan 10, 202610 min read

Building 'Decentralized Science' (DeSci) Funding Platforms

Building Decentralized Science funding platforms demands choices that cut fees by orders of magnitude, embed compliance-by-construction, and produce auditable impact signals that procurement can approve. Here’s how 7Block Labs ships them—en

Blockchain TechnologyJan 10, 202612 min read

'Code-as-Law': Automating Legal Contracts on Blockchain

Summary: Smart legal contracts moved from whiteboards to production: 2025–2026 brought enforceable digital documents (eBL 3.0, ETDA), Data Act “kill switch” requirements, EU Digital Identity wallets by 2026, and UCC Article 12 rollout acros

Environmental EconomicsJan 10, 202611 min read

How to Build 'Carbon Credit' Markets that Actually Work

Summary: Carbon markets will not scale on slideware. This playbook shows how to ship procurement-grade, audit-ready carbon credit rails that interoperate with 2026 regulatory changes (CBAM go‑live, CORSIA Phase 1) and the newest registry/dM

Blockchain SolutionsJan 10, 202611 min read

Developing 'Ticket Scalping' Prevention with NFT Rails

In 2026, “anti-scalping” is no longer a policy—it’s a system design problem. This post shows exactly how to build NFT ticket rails that bind access to real humans, enforce resale rules in code, and pass procurement-grade scrutiny while cutt

Blockchain DevelopmentJan 10, 202610 min read

How to Build 'Donation-Based' Crowdfunding with Tax Receipts

Summary: Donation-based crowdfunding with tax receipts is now a multi‑jurisdiction engineering problem: you must satisfy IRS Pub 1771/526 rules, UK Gift Aid declarations, Canada CRA receipting, and emerging eIDAS/OpenID4VCI wallets—while su

FAQ

Answers to common questions about partnering with 7BlockLabs

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.

FAQ

Your blockchain questions, answered

Quick, straightforward answers about our blockchain development services, tech stack, locations, and post‑launch support.

Expertise

Stack-agnostic. Protocol-fluent.

Our engineers ship across chains, languages and tooling, so we use the best fit, not force-fit a favourite.

Ethereum
BNB Chain
Polygon
NEAR
Solana
Avalanche
Arbitrum
Optimism
Aurora
Aptos
Sui
TON
Polkadot
Cosmos
Secret Network
StarkNet
7BlockLabs

Full-stack blockchain product studio: DeFi, dApps, audits, integrations.

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.

© 2026 7BlockLabs. All rights reserved.