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Web3 Product Engineering Studio
Building since 2021

We've built entire DeFi ecosystems from the ground up. Now we build yours.

From protocol architecture to production deployment, Prime Numbers Labs designs, engineers, and ships DeFi infrastructure for chains, protocols, and enterprises that refuse to compromise on execution quality. Backed by $10M+ in live TVL and six audited products across four chains.

$6.25M Staking TVL
$4M+ Active Borrows
6 Audited Live Products
4 Chains Deployed
Technology integrations & audit partners
XDC Network LayerZero Chainlink Hyperliquid QuillAudits Stargate Nethermind Merkl

We didn't learn DeFi from a whitepaper.
We built it.

Prime Numbers Labs was founded in 2021 with a specific problem to solve: retail users on XDC Network had no way to access staking yield unless they could lock up 10 million XDC (roughly $350,000) in a single node. We built the solution.

Using NFTs as programmable asset containers, we created a liquid staking system that made XDC network yield accessible to any capital size, with fully transferable staked positions. That product led to PrimePort, the first NFT marketplace on XDC, built so users could trade those staking NFTs. Then PRFI, a utility token with a native staking mechanism. Then PrimeFi, an omnichain lending and borrowing protocol powered by LayerZero, enabling users to deposit collateral on one chain and borrow on another.

Each product taught us what no external engagement could: what it means to build for real users, with real capital, under real market conditions. We also delivered the critical infrastructure that made XDC a competitive DeFi chain by integrating Etherscan, LayerZero, and Stargate into the network for the first time.

Today, Prime Numbers Labs opens its full engineering capacity to external clients. When you work with us, you're not hiring a studio that has read about DeFi architecture. You're hiring the team that has built it, shipped it, and operates it live.

Our Vision

To become the reference engineering partner for serious Web3 projects. The studio that builds the infrastructure the decentralized economy runs on.

Our Mission

We architect and deliver production-grade DeFi systems, from first principles to live deployment, enabling our clients to launch faster, scale securely, and lead their markets.

$10M + Deployed TVL
6 Live Products
4 Chains
10 + Team Members
2021 Founded

Every service we offer is backed by
live products we've built and operate.

This isn't theoretical capability. It's proven execution.

01

Protocol Engineering

End-to-end DeFi protocol development: lending, borrowing, staking, and yield infrastructure on any EVM chain.

  • Omnichain lending & borrowing (LayerZero)
  • Liquid staking platforms with derivative tokens
  • Yield farming & liquidity incentive architectures
  • Cross-chain bridges & messaging infrastructure

Proof: PrimeFi ($4M+ active borrows) and PrimeStaking ($6.25M TVL). Both live, audited, 4 chains.

02

Smart Contract Architecture

Production-grade Solidity development with full test coverage, gas optimization, and third-party audit coordination.

  • ERC-20, ERC-721, ERC-1155, OFT token standards
  • Omnichain contracts (LayerZero, Stargate)
  • Governance, DAO & vesting contract systems
  • Audit prep, remediation & bug bounty (QuillAudits, Immunefi)

Proof: Every contract in the Prime Numbers ecosystem (staking vaults, lending pools, NFT marketplaces, cross-chain tokens) architected and deployed in production.

03

Full-Stack Web3 Development

Modern frontends, backend APIs, real-time infrastructure, and production deployment across any cloud or VPS.

  • React / Next.js / TypeScript applications
  • WebSocket real-time systems (Socket.IO)
  • Wallet integration (RainbowKit, Wagmi)
  • Docker, CI/CD & cloud deployment (AWS)

Proof: PrimeStaking, PrimePort, PrimeFi. Custom frontends and backends, live on production infrastructure.

04

NFT & Marketplace Infrastructure

Custom NFT marketplaces, minting engines, auction systems, and utility NFT collections with staking integration.

  • White-label NFT marketplace platforms
  • Generative collections with rarity & metadata
  • Auction, bidding & secondary market systems
  • NFT staking vaults with reward mechanics

Proof: PrimePort, the first and largest NFT marketplace on XDC. Auctions, Web3 domains, and secondary markets.

05

Blockchain Gaming & iGaming

Full gaming platforms with provably fair engines, VIP systems, and decentralized infrastructure.

  • Provably fair engines (Crash, Dice, Mines, Plinko)
  • Prediction markets & sports betting architecture
  • VIP gamification & reward systems
  • On-chain settlement & geo-fencing compliance

Proof: XDC Markets, the first decentralized gaming and prediction platform on XDC. Live with provably fair engines.

06

Node & Validator Infrastructure

Masternode deployment, monitoring dashboards, and validator management tooling for PoS networks.

  • Validator node deployment & management
  • Real-time monitoring dashboards
  • Reward tracking, slashing & governance data
  • REST API integration for network analytics

Proof: PrimeXDC Nodes. Real-time monitoring for XDC's 250 masternodes, tracking rewards, uptime, slashing, and governance.

One chain. Zero DeFi.
We built everything.

When XDC Network needed to become a competitive DeFi chain, we delivered the entire infrastructure, from protocol integrations to the complete product suite. This is what a full-service engagement looks like.

“We didn't just build on XDC. We made XDC DeFi possible.” — Arturo Cantera, CEO & Founder
Integration

Etherscan on XDC

Brought Etherscan-class block explorer capabilities to XDC Network. Full contract verification, transaction tracking, and developer tooling at parity with Ethereum.

Integration

LayerZero on XDC

Connected XDC to the omnichain messaging layer for the first time. Enabled cross-chain token transfers, lending, and collateral management across networks.

Integration

Stargate on XDC

Integrated Stargate Finance for unified liquidity and native cross-chain asset transfers between XDC, Base, Ethereum, and Hyperliquid.

#1 on XDC

Largest Liquid Staking

PrimeStaking: $6.25M TVL (DefiLlama verified). Pioneered psXDC, the first liquid staking derivative on XDC, unlocking DeFi composability for staked assets.

#1 on XDC

Largest Lending Protocol

PrimeFi: $4M+ in active borrows across XDC, Hyperliquid, and Base. Omnichain architecture lets users deposit on one chain and borrow on another.

#1 on XDC

First NFT Marketplace

PrimePort: the first and largest NFT marketplace on XDC. Auctions, collections, Web3 domains, and the secondary market for staking NFTs.

First on XDC

Prediction Markets & iGaming

XDC Markets: the first decentralized gaming and prediction platform on XDC with provably fair engines and on-chain settlement.

Infrastructure

PrimeXDC Nodes

Real-time validator monitoring dashboard for XDC’s 250 XDPoS 2.0 masternodes. Tracks status, rewards, uptime, slashing, and governance data.

We delivered all of this for a single chain in under three years. If your chain or protocol needs infrastructure built at this scale, we know exactly how to execute.

Start a Conversation

Every product is live, audited,
and serving real users.

These represent the full spectrum of what we can build for your organization.

Our Flagship Ecosystem: Prime Numbers

Built by us, operated by us. Proof of full-lifecycle DeFi engineering.

PrimeFi
Omnichain

PrimeFi

Omnichain Lending & Borrowing

Deposit collateral on one chain, borrow on another. Powered by LayerZero with $4M+ in active borrows. Live on XDC, Hyperliquid, and Base.

LayerZeroStargateChainlinkFlash Loans
Visit PrimeFi
PrimeStaking
$6.25M TVL

PrimeStaking

Non-Custodial Liquid Staking

Stake XDC, receive psXDC 1:1, stay liquid. NFT-boosted vaults with rarity tiers. The largest staking protocol on XDC Network, audited by QuillAudits.

Liquid StakingpsXDCNFT VaultsQuillAudits
Visit PrimeStaking
PrimePort
Multichain

PrimePort

NFT Marketplace

Create, buy, sell, and auction NFTs across EVM chains. The first and largest NFT marketplace on XDC with auctions, collections, and Web3 Domains.

ERC-721AuctionsWeb3 DomainsMulti-chain
Visit PrimePort
PRFI
OFT Token

$PRFI Token

Omnichain Utility Token

Omnichain fungible token built on LayerZero's OFT standard. Moves natively across XDC, Hyperliquid, Ethereum, and Base without wrapped token mechanics or bridge risk. Includes DAO governance, vesting contracts, and staking integration.

LayerZero OFTOmnichainDAO GovernanceVesting
Prime Numbers Ecosystem | Internal Product Learn More

Prime Numbers Labs Products

Standalone products built and deployed by our studio.

iGaming

XDC Markets

Gaming & Prediction Markets

Fully decentralized crypto gaming and prediction markets with provably fair engines, geo-fencing compliance, and real-time on-chain settlement.

Provably FairOn-chainGeo-fencing
Visit XDC Markets
PrimeXDC
Infrastructure

PrimeXDC Nodes

Validator Monitoring Dashboard

Real-time monitoring for XDC's 250 XDPoS 2.0 masternodes. Track status, rewards, uptime, slashing, and governance data.

XDPoS 2.0250 NodesAnalyticsREST API
Visit Dashboard
PrimeXDC Wallet
Browser Extension

PrimeXDC Wallet

Multi-chain Wallet for XDC & EVM

Non-custodial browser extension with native XDC address support, built-in DEX aggregation, hardware wallet integration, and the full Prime Numbers DeFi stack in one extension. 100+ EVM chains.

100+ ChainsDEX AggregationHardware WalletsWalletConnect v2
Get Wallet

How we go from brief to live product,
every time.

01

Discovery & Strategy

We analyze your requirements, market positioning, and technical constraints to define a clear product roadmap and system architecture.

02

Architecture & Design

Smart contract structures, system design, and user experience are fully specified before writing a single line of code.

03

Development & Testing

Full-stack development with continuous testing, code review, and integration across all system components.

04

Security & Audit

Comprehensive security review, third-party audit coordination with QuillAudits, and Immunefi bug bounty program setup. Security is designed in from day one, not bolted on before launch.

05

Launch & Deployment

Production deployment with monitoring infrastructure, documentation, and coordinated go-to-market launch support.

06

Optimization & Scale

Ongoing performance optimization, feature development, and scaling support as your protocol grows and evolves.

Every tool in this stack has been used
in production, under real conditions.

Smart Contracts
SolidityHardhatFoundryOpenZeppelinERC-20ERC-721LayerZeroStargate
Frontend
ReactNext.jsTypeScriptViteTailwindCSSWagmiRainbowKitEthers.jsWeb3.jsThree.jsGSAP
Backend & APIs
Node.jsExpress.jsGraphQLSocket.IOWebSocketsThe Graph
Infrastructure
DockerKubernetesAWSNginxPostgreSQLMongoDBRedisCI / CDGitHub ActionsIPFS
Security & Auditing
QuillAuditsImmunefiChainlink

The team that built $10M+ in live DeFi TVL.
Now available for your project.

Every member of our team has been building in Web3 since the early days. From smart contract architecture to product design, we ship together.

Arturo Cantera

Arturo Cantera

CEO & Founder

Core team member of XDC Network since 2021. Conceived and shipped the Prime Numbers ecosystem (liquid staking, lending, marketplace, and omnichain token) from zero to $10M+ in live TVL.

Víctor Manero

Víctor Manero

COO

Operations architect behind 6 live product launches. Ensures every client engagement runs on time, on spec, and on budget.

Rainer Ramírez

Rainer Ramírez

CTO

Technical architect of PrimeFi's omnichain infrastructure and Prime Numbers' LayerZero and Stargate integrations. Designed the smart contract systems operating $10M+ in TVL.

Inés Cantera

Inés Cantera

CDO

Visual identity and UX lead across all Prime Numbers products. Designed the PRFI NFT collection and all protocol interfaces.

Farhana Meghami

Farhana Meghami

Marketing Manager

Leading brand strategy, community growth, and marketing campaigns across all products.

John Menjura

John Menjura

Front End Developer

Building the interfaces that power PrimeFi, PrimePort, and the ecosystem's front end.

Rodolfo Cova

Rodolfo Cova

Solidity Developer

Smart contract engineer behind PrimeFi lending pools, PrimeStaking vaults, and cross-chain OFT token architecture.

Iván Guanipa

Iván Guanipa

Full Stack Developer

End-to-end development across PrimeStaking, PrimePort, and the PrimeXDC Nodes monitoring infrastructure.

Ready to ship
something real?

We work with a limited number of clients at a time to maintain the engineering quality our reputation is built on. If you're serious about launching or scaling DeFi infrastructure, let's have a direct conversation.

What to expect
  • → Response within 24 hours
  • → 30-minute discovery call to understand your requirements
  • → Technical proposal within 5 business days