W3Sweb3spell/labs
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All Capabilities/PRODUCT / ENGINEERING
02 / PRODUCT / ENGINEERING

Zero-to-Hero protocol
& product engineering.

We engineer complete on-chain systems from first-principles whitepaper math to formally verified smart contracts, zero-knowledge circuits, TypeScript SDKs, and high-frequency web applications.

Scope this engagement
~175k CUON-CHAIN ZK VERIFICATION

Groth16 proof verification on Solana via native alt_bn128 pairing syscalls.

18 / 18CERTORA AUDIT REMEDIATION

100% formal verification & security finding remediation on ChainPot V4.

< 380msATOMIC CLOB EXECUTION

Dual-leg ERC-6909 relative-value routing shipped on Somnia Shannon.

01 / FOUNDER PERSPECTIVE

Why splitting contract engineering from product engineering breaks timelines.

WHY MOST TEAMS STALL HERE

Many teams hire an isolated contract freelancer to write Solidity or Rust, and a separate web agency to build the React frontend. Six weeks later, the frontend team discovers the contract doesn’t emit the events needed for the UI, the ZK proof takes 40 seconds in the browser, or a missing slippage invariant exposes users to legging-in risk.

HOW WE ENGINEER IT AT WEB3SPELL LABS

We operate as a unified protocol-to-interface engineering lab. The same senior architects who write your Anchor programs, Solidity contracts, and Circom circuits also design your event indexers, TypeScript SDKs, and Next.js operator surfaces. Everything is co-designed around real execution constraints from day one.

02 / TECHNICAL ARCHITECTURE & SCOPE

What we actually
design and ship.

No vague retainers or slide-deck theater. Every engagement in this practice is decomposed into concrete engineering and design workstreams.

01ZK & PROTOCOL

Zero-Knowledge, MPC & Privacy Systems

We architect and implement practical privacy and verifiable compute systems, combining Circom/Noir circuits, Groth16 verifiers, Nillion blind storage/compute, and TEE enclaves.

SPECIFICATIONS & ARTIFACTS
  • Custom Circom 2.1.6 / Noir circuits & Poseidon commitment trees
  • Solana alt_bn128 syscall verifiers & EVM pairing precompile verifiers
  • Nillion nilDB (MPC secret shares) + nilCC (AMD SEV-SNP TEE) integration
02SMART CONTRACTS

Solana (Rust/Anchor) & EVM (Solidity/Foundry) Smart Contracts

We write deterministic, gas-optimized smart contract suites from scratch, engineered with explicit state machines, custom errors, and formal verification specs.

SPECIFICATIONS & ARTIFACTS
  • Solana Anchor programs, PDA vault topologies, and SPL Token-2022 hooks
  • EVM Solidity 0.8.24+ protocols, ERC-6909 multi-tokens, ERC-4337 AA & DeFi integrations
  • Foundry fuzz/invariant test suites & Certora CVL formal verification rules
03WEB & DAPPS

Production Web Applications, Terminals & TypeScript SDKs

We build sub-second operator interfaces, browser-native ZK provers, real-time WebSocket indexers, and clean TypeScript SDKs that make your protocol effortless to integrate.

SPECIFICATIONS & ARTIFACTS
  • Next.js / React 19 applications with Viem v2, Wagmi, and Solana Web3.js
  • In-browser WebWorker snarkjs witness & proof generation pipelines
  • Real-time WebSocket orderbook streams, event indexers & zero-dependency SDKs
040 TO HERO

0-to-Hero End-to-End Protocol Delivery

Bring us a raw mechanism idea or whitepaper draft. We take full ownership of architecture, contracts, audit prep, SDK, and flagship dApp through mainnet launch.

SPECIFICATIONS & ARTIFACTS
  • Mechanism design, economic edge-case modeling & whitepaper specification
  • Parallel contract + indexer + frontend execution with locked ABI/IDL schemas
  • Audit coordination (Certora, OtterSec, etc.), remediation & mainnet deployment
03 / EXECUTION CADENCE

How an engagement
runs week by week.

Direct Slack/Telegram channel with our founders and engineers, weekly shippable milestones, and clean handoff to your internal team.

01Week 1–2

Mechanism & Invariant Spec

We formalize your state transitions, threat model, account/storage topology, and lock the ABI/IDL boundary before writing implementation code.

OUTPUTFormal Technical Spec & Locked IDL/ABI
02Week 3–6

Contract, Circuit & SDK Build

We implement the smart contracts or ZK circuits alongside a 100% branch-covered Foundry/Anchor test suite and a typed client SDK.

OUTPUTVerified Contracts, Circuits & SDK
03Week 5–8

Operator dApp & Indexer Integration

We wire the production web interface, WebSocket streams, and client-side proving pipelines against live devnet/testnet deployments.

OUTPUTLive Testnet Application
04Week 8–10

Audit Remediation & Mainnet Ship

We work directly with formal verification provers and security auditors, resolve every finding, and execute your deterministic mainnet launch.

OUTPUTAudited Mainnet Launch & Handoff
WHO THIS IS BUILT FOR
  • Founders who want a single senior lab to take a protocol from 0-to-1 whitepaper to live mainnet product
  • Protocols needing specialized cryptography (Groth16 ZK, MPC, TEEs) or complex DeFi state machines
  • Ecosystem foundations commissioning flagship reference protocols or developer SDKs on their chain
  • Core teams preparing for a formal security audit (Certora, Trail of Bits, etc.) needing V4+ remediation
TANGIBLE DELIVERABLES
  • Formal protocol specification, threat model & invariant documentation
  • Production Solana (Rust/Anchor) or EVM (Solidity/Foundry) smart contract repository
  • Custom ZK circuits (Circom/Noir), proving keys & on-chain verifier contracts
  • Comprehensive unit, fuzz, integration & formal verification (CVL) test suites
  • TypeScript client SDK, event indexer & production Next.js web application
  • Audit remediation log & deterministic deployment scripts
PRODUCTION STACK & TOOLING
Rust / Anchor 0.31+Solidity 0.8.24 / FoundryCircom 2.1.6 / Groth16Nillion nilDB & nilCC TEECertora Prover (CVL)Next.js / React 19 / TypeScriptViem v2 / Solana Web3.js
SHIPPED PROOF · CHAINPOT PROTOCOL (SUPPORTED BY COMPOUND · AUDITED BY CERTORA)

ChainPot

In ChainPot V4, we engineered a 5-contract modular ROSCA suite integrated with Compound III and Chainlink VRF V2.5, remediating 18/18 Certora audit findings with 48/48 passing Foundry tests.

Read ChainPot Protocol (Supported by Compound · Audited by Certora) case study Inspect live deployment
04 / RELATED IN ENGINEERING/View all 09 capabilities
Groth16, MPC & AA

ZK & Protocol

Zero-knowledge circuits, Nillion MPC/TEE privacy stacks, and protocol mechanism design.

Solana Rust & EVM

Smart Contracts

Audited Anchor/Rust and Solidity/Foundry contract systems with formal verification.

Interfaces & SDKs

Web & dApps

High-frequency operator terminals, browser ZK provers, indexers, and TypeScript SDKs.

READY WHEN YOU ARE

Bring us your
hardest problem.

Whether you need a focused 4-week intervention in zero-to-hero protocol or a complete 0-to-Hero protocol build, you work directly with our founders and senior engineers.

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