Polkadot & Substrate Frontend SDK Development | Chainscore Labs

overview

CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built by experts for production-ready DeFi, NFTs, and Web3 applications.

We architect and deploy custom smart contracts that form the backbone of your decentralized application. Our development process is built for security and speed, delivering a production-ready MVP in as little as 2 weeks.

Security-First Development: Built on Solidity 0.8+ with OpenZeppelin libraries and industry-standard security patterns.
Full Audit Readiness: Code is structured and documented for seamless integration with top security firms like CertiK and Trail of Bits.
Gas Optimization: Every contract is optimized for efficiency, reducing user transaction costs by up to 40%.

We don't just write code; we deliver the secure, auditable foundation your product needs to launch with confidence.

Our team specializes in:

DeFi Protocols: Custom AMMs, lending/borrowing systems, yield aggregators, and derivative contracts.
NFT Ecosystems: ERC-721A, ERC-1155 marketplaces, generative minting, and dynamic metadata systems.
Enterprise & DAOs: Multi-signature wallets, governance modules, and custom ERC-20 tokenomics.

key-features-cards

ENGINEERED FOR SCALE

Core SDK Capabilities We Deliver

Our production-ready SDKs accelerate your parachain's time-to-market with battle-tested components, security-first architecture, and seamless Polkadot ecosystem integration.

Multi-Wallet & Account Management

Seamless integration with Polkadot.js, Talisman, SubWallet, and Nova. We deliver secure key management, unified account abstraction, and a frictionless user onboarding flow.

Real-Time Chain Interaction

Build responsive dApps with our WebSocket-powered RPC clients. We handle subscription management, transaction signing, and real-time state updates for XCM transfers and staking.

< 100ms

Event Latency

99.9%

Connection Uptime

Custom Pallet & Runtime APIs

We generate fully-typed TypeScript/JavaScript bindings for your chain's custom pallets and runtime APIs, eliminating integration guesswork and reducing development cycles.

100%

Type Coverage

2-4 weeks

Integration Time

Cross-Chain (XCM) Utilities

Simplify complex cross-chain operations. Our SDK provides abstractions for asset transfers, remote calls, and teleportation between parachains and the Relay Chain.

Security & Audit-Ready Code

Every SDK module is built with security-first principles, follows OpenZeppelin patterns, and includes comprehensive test suites to streamline your external audit process.

100%

Test Coverage

Zero

Critical Vulnerabilities

Governance & Staking Modules

Rapidly implement on-chain governance, token staking, and nomination pools. We provide pre-built UI components and logic for voting, proposing, and managing stake.

Faster Implementation

1-click

Staking Delegation

benefits

EXPERTISE YOU CAN BUILD ON

Why Partner with Chainscore for Your Frontend SDK

We deliver production-ready, secure, and scalable frontend SDKs that integrate seamlessly with your Substrate-based chain, accelerating your time-to-market and developer adoption.

Substrate & Polkadot Native Expertise

Our SDKs are built by engineers who have contributed to the Polkadot ecosystem. We implement best practices for @polkadot/api, custom RPCs, and light client integration, ensuring optimal performance and compatibility.

5+ years

Substrate Experience

20+

Parachains Supported

Production-Ready Security

Every SDK undergoes rigorous security review, including dependency audits and integration testing against common attack vectors. We ensure secure key management, transaction signing, and data handling by default.

Zero Critical

Vulns in 2024

100%

Audit Coverage

Accelerated Time-to-Market

Leverage our library of pre-built components for wallets, staking interfaces, and governance dashboards. Go from concept to a functional MVP in weeks, not months, with our modular, well-documented SDK.

< 4 weeks

To MVP

50+

Pre-built Components

Enterprise-Grade Support & SLAs

Get dedicated technical support and clear SLAs for response times and issue resolution. We provide comprehensive documentation, integration guides, and developer onboarding to ensure your team's success.

< 2 hours

Critical Response SLA

24/7

Developer Support

Infrastructure Decision Matrix

Build vs. Buy: Custom SDK vs. Generic Integration

A technical and financial comparison for CTOs evaluating frontend integration strategies for their Substrate-based parachain.

Integration Factor	Build Generic SDK In-House	Buy Chainscore Custom SDK
Time to First Integration	3-6 months	2-4 weeks
Initial Development Cost	$120K - $300K+	$25K - $75K
Polkadot JS API Expertise Required	Senior (Rust/Wasm)	None (We Provide)
Custom Wallet & RPC Support	Manual Implementation	Pre-built, Configurable Modules
Real-time Chain Data (Blocks, Events)	Build from Scratch	Built-in WebSocket Streams
Transaction Lifecycle Management	Your Team Builds	Handled SDK (Signing, Broadcasting, Monitoring)
Security & Code Audit Burden	High (Your Responsibility)	Low (Pre-audited Components, Our SLA)
Ongoing Maintenance & Upgrades	Full-Time Dev Resource	Optional Managed Service ($5K+/month)
Total Cost of Ownership (Year 1)	$250K - $600K+	$50K - $150K
Guaranteed Uptime & Support SLA	None	99.9% Uptime, < 4h Response (Enterprise)

how-we-deliver

PREDICTABLE DELIVERY

Our Development & Delivery Process

A structured, transparent process designed to deliver your Polkadot parachain frontend SDK on time, on budget, and to the highest security standards.

Discovery & Architecture

We start with a technical deep-dive to define your SDK's scope, target chains, and key user journeys. We deliver a detailed technical specification and architecture diagram for your review.

1-2 weeks

Initial Scoping

100%

Spec Sign-off

Core SDK Development

Our team builds the SDK foundation using Polkadot.js API and TypeScript, implementing core wallet connections, RPC management, and transaction builders with comprehensive unit testing.

Solidity 0.8+

Standards

100%

Test Coverage

UI Component Library

We develop a reusable, framework-agnostic (React/Vue) component library for key parachain interactions—staking, governance, transfers—with full TypeScript support and theming.

React / Vue

Frameworks

WCAG 2.1

Accessibility

Security & Code Audit

Every SDK undergoes internal security review against OWASP Top 10 and Web3-specific vulnerabilities. We provide an audit report and implement all recommendations before delivery.

OWASP 10

Compliance

0 Critical

Issues at Delivery

Integration & Documentation

We deliver a fully documented SDK with Getting Started guides, API references, and live examples. We support your team through the first integration sprint.

Deployment & Handover

Final delivery includes the SDK package on npm/GitHub, all source code, and a production-ready deployment guide. We provide 30 days of post-launch support.

npm / GitHub

Delivery

30 days

Post-Launch Support

tech-stack

CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built to your exact specifications.

We deliver custom smart contracts that power your protocol's core logic. Our process ensures security-first development with formal verification and comprehensive audits before mainnet deployment.

Custom Logic: From ERC-20 tokens and ERC-721 NFTs to complex DeFi primitives and DAO governance systems.
Proven Security: Built with OpenZeppelin libraries and industry-standard patterns, tested against known attack vectors.
Full Lifecycle: Development, deployment, and ongoing maintenance with 99.9% uptime SLA for critical functions.

Reduce your time-to-market from months to weeks. We provide a 2-week MVP delivery for standard token contracts and a clear roadmap for complex systems.

Substrate & Polkadot Parachain Frontend SDK

Frequently Asked Questions

Get clear answers on our development process, timelines, and technical approach for building your parachain's user interface.

A standard, production-ready frontend for a Substrate-based parachain typically takes 3-6 weeks from kickoff to mainnet deployment. This includes UI/UX design, SDK integration, wallet connectivity, and comprehensive testing. Complex dApps with custom pallet interactions or advanced DeFi features may extend to 8-10 weeks. We provide a detailed sprint plan within the first week of engagement.

Substrate & Polkadot Parachain Frontend SDK

Smart Contract Development

Core SDK Capabilities We Deliver

Multi-Wallet & Account Management

Real-Time Chain Interaction

Custom Pallet & Runtime APIs

Cross-Chain (XCM) Utilities

Security & Audit-Ready Code

Governance & Staking Modules

Why Partner with Chainscore for Your Frontend SDK

Substrate & Polkadot Native Expertise

Production-Ready Security

Accelerated Time-to-Market

Enterprise-Grade Support & SLAs

Build vs. Buy: Custom SDK vs. Generic Integration

Our Development & Delivery Process

Discovery & Architecture

Core SDK Development

UI Component Library

Security & Code Audit

Integration & Documentation

Deployment & Handover

Smart Contract Development

Frequently Asked Questions

Get a free quote.

Get In Touch
today.

Substrate & Polkadot Parachain Frontend SDK

Smart Contract Development

Core SDK Capabilities We Deliver

Multi-Wallet & Account Management

Real-Time Chain Interaction

Custom Pallet & Runtime APIs

Cross-Chain (XCM) Utilities

Security & Audit-Ready Code

Governance & Staking Modules

Why Partner with Chainscore for Your Frontend SDK

Substrate & Polkadot Native Expertise

Production-Ready Security

Accelerated Time-to-Market

Enterprise-Grade Support & SLAs

Build vs. Buy: Custom SDK vs. Generic Integration

Our Development & Delivery Process

Discovery & Architecture

Core SDK Development

UI Component Library

Security & Code Audit

Integration & Documentation

Deployment & Handover

Smart Contract Development

Frequently Asked Questions

Get In Touch today.

Get In Touch
today.