Mobile Cross-Platform Blockchain SDK

overview

FULL-STACK INFRASTRUCTURE

Custom Blockchain Development

Build, deploy, and scale custom blockchain networks and dApps with production-ready infrastructure.

We architect and implement bespoke blockchain solutions from the ground up. Our full-cycle development delivers production-ready mainnet deployments in 6-12 weeks, not months.

Custom L1/L2 Networks: Build sovereign chains with Cosmos SDK, Substrate, or custom EVM rollups (OP Stack, Arbitrum Orbit).
Smart Contract Ecosystems: Design and audit token standards (ERC-20, ERC-721, ERC-1155), DeFi protocols, and governance systems.
Node Infrastructure: Provision and manage high-availability validator nodes with 99.9% uptime SLAs and multi-cloud redundancy.

We don't just write code; we deliver audited, gas-optimized, and maintainable systems that scale with your user base.

Our process includes formal verification for critical logic, integration with oracles like Chainlink, and comprehensive devops automation for seamless CI/CD. We ensure your chain is secure, interoperable, and built for the next wave of adoption.

key-features-cards

ENTERPRISE-GRADE SDK

A Complete Toolkit for Mobile Web3

Our cross-platform SDK delivers production-ready blockchain functionality, eliminating months of development time and infrastructure overhead for mobile-first applications.

Multi-Chain Wallet Integration

Seamless, secure wallet connections for EVM, Solana, and Bitcoin via WalletConnect v2 and custom protocols. Supports MPC and social logins for mainstream adoption.

15+

Chains Supported

< 100ms

Connection Time

Gasless Transaction Engine

Sponsor user transactions with our meta-transaction relayer. Built-in fee abstraction for ERC-4337 Account Abstraction and native chain solutions.

User Gas Costs

99.9%

Relayer Uptime

Real-Time Blockchain Data

Subscribe to on-chain events, token balances, and NFT metadata with WebSocket streams. Indexed RPC endpoints ensure sub-2s data latency.

< 2s

Data Latency

10M+

Events/Day

Security & Key Management

Biometric-secured key storage with hardware security module (HSM) options. SOC 2 compliant infrastructure and regular penetration testing.

SOC 2

Compliance

Zero

Security Breaches

Push Notification System

Automated alerts for transaction confirmations, price movements, and DAO proposals. Customizable delivery channels (in-app, email, SMS).

< 5s

Alert Delivery

95%+

Open Rate

Unified API & Documentation

TypeScript/Flutter/Swift/Kotlin SDKs with exhaustive documentation and sample apps. Dedicated technical support with <4 hour response SLA.

4 SDKs

Native Support

< 4h

Support SLA

benefits

THE CHAINSCORE ADVANTAGE

Why Choose a Custom SDK Over Generic Solutions

Generic SDKs force your app to fit their limitations. Our custom-built Mobile Cross-Platform SDKs are engineered to your exact specifications, delivering superior performance, security, and user experience.

Native Performance & UX

We build with native languages (Swift/Kotlin) and frameworks (Flutter/React Native) for each platform, not a one-size-fits-all wrapper. This results in 60% faster transaction signing and a seamless, native-feeling wallet experience.

60%

Faster Tx Signing

< 100ms

UI Response Time

Protocol-Specific Optimization

Your SDK is optimized for your chosen L1/L2 (Ethereum, Solana, Polygon, Arbitrum). We implement protocol-specific RPC methods, gas estimation, and state management, reducing failed transactions by up to 40%.

40%

Fewer Failed Txs

Multi-Chain

Native Support

Enterprise-Grade Security

Private key management is handled in secure enclaves (iOS Secure Enclave, Android Keystore). Every SDK undergoes a mandatory security audit following OWASP Mobile Top 10, with zero third-party key dependencies.

OWASP

Security Standard

Zero-Trust

Key Management

Reduced Integration Time

We deliver a fully documented, plug-and-play SDK module with your branding and core logic pre-integrated. Launch your mobile dApp in 3-4 weeks, not the 3-4 months required to adapt a generic solution.

3-4 weeks

Time to Launch

Full Docs

Included

Tailored Analytics & Monitoring

Get built-in, real-time analytics on user sessions, transaction success rates, and gas spending. Our dashboards provide actionable insights to optimize user flows and reduce support tickets by 30%.

Real-Time

Analytics

30%

Fewer Support Tickets

Direct Technical Ownership

You receive full source code, build scripts, and architecture documentation. Avoid vendor lock-in and maintain complete control over your core mobile stack, with our team available for ongoing support.

Full Source

Code Ownership

No Lock-in

Future-Proof

Scale Your SDK Integration

Phased Development Tiers

Choose the right level of support for your mobile cross-platform blockchain SDK development, from initial integration to full-scale enterprise deployment.

Feature	Starter	Professional	Enterprise
Core SDK Integration
Multi-Chain Support (EVM)	Ethereum, Polygon	Ethereum, Polygon, Arbitrum, Base	All EVM & non-EVM (Solana, Cosmos)
Custom Wallet Connector
Smart Contract Interaction Layer	Basic	Advanced (Gasless, Batch)	Fully Custom
Security Audit & Pen Testing	Automated Scan	Manual Code Review	Comprehensive Audit + Certik/KYC
Deployment & CI/CD Pipeline
Dedicated Technical Support	Community	Business Hours	24/7 with 4h SLA
Performance Monitoring & Alerts		Basic Dashboard	Advanced Analytics & Custom Alerts
Time to Production	4-6 weeks	6-10 weeks	10-16 weeks
Starting Price	$25K	$75K	Custom Quote

how-we-deliver

PREDICTABLE DELIVERY

Our Development & Integration Process

A structured, four-phase engagement model designed for technical leaders. We deliver a production-ready SDK in 6-8 weeks, from architecture to deployment.

Discovery & Architecture

We conduct a 2-week technical deep-dive to define your SDK's core modules, target chains (EVM, Solana, Cosmos), and integration requirements. Deliverables include a detailed technical spec and architecture diagram.

2 weeks

Phase Duration

Technical Spec

Core SDK Development

Our engineers build the SDK's foundational layers: secure wallet management, multi-chain RPC abstraction, and transaction signing. All code follows OpenZeppelin security patterns and is written in Kotlin Multiplatform/Swift.

3-4 weeks

Phase Duration

100%

Code Review

Integration & Customization

We integrate the SDK into your existing mobile codebase (React Native, Flutter, Native) and implement custom features like fiat on-ramps, NFT galleries, or DeFi dashboards. Includes a dedicated developer for your team.

2 weeks

Phase Duration

1:1

Dedicated Support

Testing & Deployment

Rigorous testing across 50+ device profiles, security audit review integration, and performance benchmarking. We deliver a documented SDK package, deployment guide, and provide 30 days of launch support.

1-2 weeks

Phase Duration

50+

Devices Tested

The Infrastructure Decision for Your Mobile App

Build vs. Buy: Custom SDK vs. Open-Source Libraries

A clear comparison of the development time, cost, and risk associated with building a blockchain SDK in-house versus leveraging Chainscore's production-ready solution.

Key Factor	Build In-House	Use Open-Source	Chainscore Custom SDK
Time to Market	6-12+ months	3-6 months (integration)	4-8 weeks
Initial Development Cost	$250K - $600K+	$50K - $150K (integration)	$75K - $200K
Security & Audit Burden	High (your responsibility)	High (unaudited dependencies)	Low (pre-audited, maintained)
Multi-Chain Support (EVM, Solana, etc.)	Build per chain	Patchwork integration	Native, unified API
Ongoing Maintenance & Updates	Full-time dev team	Community-dependent	Managed service with SLA
Native Mobile Performance	Custom optimization required	Often suboptimal	Optimized for iOS/Android
Wallet Connectivity (WalletConnect v2, etc.)	Manual implementation	Basic support	Pre-built, battle-tested modules
Support & Incident Response	Internal only	Community forums	24/7 dedicated engineering support
Total Cost of Ownership (Year 1)	$400K - $800K+	$100K - $250K+	$150K - $300K
Guaranteed Uptime SLA	None	None	99.9%

Mobile SDK

Frequently Asked Questions

Get clear answers on our cross-platform blockchain SDK development, from timelines and pricing to security and support.

For a standard cross-platform SDK with core wallet, transaction, and RPC connectivity, we deliver a production-ready MVP in 4-6 weeks. Complex integrations (e.g., multi-chain DeFi, MPC wallets, custom gasless transactions) typically take 8-12 weeks. We follow a phased delivery model with weekly demos.

Custom Blockchain Development

A Complete Toolkit for Mobile Web3

Multi-Chain Wallet Integration

Gasless Transaction Engine

Real-Time Blockchain Data

Security & Key Management

Push Notification System

Unified API & Documentation

Why Choose a Custom SDK Over Generic Solutions

Native Performance & UX

Protocol-Specific Optimization

Enterprise-Grade Security

Reduced Integration Time

Tailored Analytics & Monitoring

Direct Technical Ownership

Phased Development Tiers

Our Development & Integration Process

Discovery & Architecture

Core SDK Development

Integration & Customization

Testing & Deployment

Build vs. Buy: Custom SDK vs. Open-Source Libraries

Frequently Asked Questions

Get a free quote.

Get In Touch
today.

Mobile Cross-Platform Blockchain SDK

Custom Blockchain Development

A Complete Toolkit for Mobile Web3

Multi-Chain Wallet Integration

Gasless Transaction Engine

Real-Time Blockchain Data

Security & Key Management

Push Notification System

Unified API & Documentation

Why Choose a Custom SDK Over Generic Solutions

Native Performance & UX

Protocol-Specific Optimization

Enterprise-Grade Security

Reduced Integration Time

Tailored Analytics & Monitoring

Direct Technical Ownership

Phased Development Tiers

Our Development & Integration Process

Discovery & Architecture

Core SDK Development

Integration & Customization

Testing & Deployment

Build vs. Buy: Custom SDK vs. Open-Source Libraries

Frequently Asked Questions

Get In Touch today.

Get In Touch
today.