We architect and deploy custom Solidity smart contracts that are secure by design and gas-optimized for your specific use case—from DeFi protocols and NFT marketplaces to enterprise-grade tokenization systems.
LABS
Services
Cross-Chain Bridge API Gateway Design & Development
We architect and build robust backend APIs and SDKs that abstract the complexity of cross-chain bridging. Enable your application to integrate secure, multi-chain functionality in weeks, not months.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications by expert Solidity engineers.
- Full Development Lifecycle: From initial audit of your concept to deployment and post-launch monitoring.
- Security-First Approach: All code follows
OpenZeppelinstandards and undergoes rigorous internal review before third-party audits. - Proven Patterns: We implement battle-tested architectures for
ERC-20,ERC-721,ERC-1155, and custom logic to prevent costly exploits.
Deliver a secure, auditable, and scalable foundation for your Web3 product in as little as 2-4 weeks for an MVP.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Our Bridge API Gateway
Our API gateway abstracts the complexity of cross-chain interoperability, providing a single, reliable interface for secure and efficient asset transfers. We deliver the foundational infrastructure so your team can focus on building.
05
Compliance-Ready Architecture
Design supports integration with AML/KYC providers and maintains detailed, immutable logs for regulatory reporting. Role-based access control (RBAC) and SOC 2 Type II compliant infrastructure.
SOC 2
Compliant
RBAC
Access Control
benefits
TECHNICAL ADVANTAGES
Business Outcomes: Why a Custom Bridge API Accelerates Growth
A purpose-built Cross-Chain Bridge API Gateway delivers measurable business results by eliminating infrastructure complexity and unlocking new revenue streams.
01
Monetize Cross-Chain Activity
Deploy a branded, white-label bridge to capture transaction fees and user data. We build custom fee structures and analytics dashboards, turning infrastructure into a direct revenue channel.
2-4 weeks
Revenue Launch
Custom %
Fee Structure
02
Reduce Time-to-Market by 70%
Leverage our battle-tested bridge modules for EVM, Solana, and Cosmos chains. We deliver a production-ready API gateway in weeks, not months, allowing you to seize market opportunities faster.
< 4 weeks
Deployment
70%
Faster Build
03
Enterprise-Grade Security & Uptime
Our gateways are built with formal verification patterns and multi-signature relayers. We provide a 99.9% uptime SLA and comprehensive monitoring to protect your users' assets and your brand reputation.
99.9%
Uptime SLA
24/7
Incident Response
04
Seamless User Experience
Integrate a single API endpoint for all cross-chain actions. We handle gas estimation, slippage, and transaction status, providing your users with a simple, intuitive bridging flow that reduces drop-off.
1 API
Unified Endpoint
< 5 steps
User Flow
05
Future-Proof Architecture
Our modular design supports easy integration of new chains (EVM, non-EVM, L2s) and bridge types (liquidity, mint/burn). Scale your cross-chain capabilities without costly re-architecture.
10+
Supported Chains
Modular
Design
06
Own Your Infrastructure
Avoid vendor lock-in and opaque third-party fees. We deliver a fully audited, self-hosted solution where you control the smart contracts, relayers, and user data, ensuring long-term operational sovereignty.
Full Audit
Code Ownership
Zero Lock-in
Vendor Risk
Infrastructure Decision Matrix
Build vs. Buy vs. Our Custom API Gateway
A technical and financial comparison of approaches for integrating cross-chain liquidity. Our custom gateway offers the control of in-house development with the speed and security of a managed service.
| Critical Factor | Build In-House | Generic Third-Party API | Chainscore Custom Gateway |
|---|---|---|---|
Time to Market (Initial Integration) | 6-12 months | 2-4 weeks | 4-8 weeks |
Upfront Development Cost | $250K - $600K+ | $0 - $50K (SDK/Setup) | $75K - $200K |
Security Posture & Audit Burden | Your responsibility (High Risk) | Shared risk (Medium Risk) | Our responsibility (Audited & Insured) |
Protocol & Chain Customization | Full control | Limited to provider's roadmap | Tailored to your stack |
Ongoing Maintenance & DevOps | Full-time team (2-3 engineers) | Managed, but generic updates | Managed, with your roadmap |
SLA for Uptime & Support | You define & maintain | Standard (e.g., 99.5%) | Guaranteed 99.9% with 24/7 SRE |
Fee Structure & Revenue Model Control | Complete control | Subject to provider's fees & changes | Designed for your economics |
Total Cost of Ownership (Year 1) | $500K - $1.2M+ | $100K - $300K | $150K - $400K |
how-we-deliver
STRUCTURED DELIVERY
Our Development Process: From Architecture to Production
A proven, phased approach to delivering secure, scalable, and production-ready cross-chain infrastructure. We manage the entire lifecycle, from initial design to ongoing maintenance, ensuring your bridge API gateway meets enterprise standards.
01
1. Architecture & Protocol Design
We define the optimal bridge architecture (lock-and-mint, burn-and-mint, liquidity pools) and select core protocols (Axelar, LayerZero, Wormhole) based on your security, cost, and speed requirements. This phase establishes the technical foundation and threat model.
3-5 days
Design Sprint
5+
Protocols Evaluated
02
2. Smart Contract Development & Auditing
Our engineers write secure, gas-optimized Solidity/Vyper contracts for asset custody, messaging, and governance. All code undergoes internal review followed by a formal audit from a top-tier firm like Quantstamp or CertiK before deployment.
100%
Audit Mandatory
OpenZeppelin
Standards Used
03
3. Relayer & API Gateway Build
We develop the off-chain relayer service and the primary REST/WebSocket API gateway. This includes transaction monitoring, event listening, proof generation, and a developer-friendly API with rate limiting, authentication, and comprehensive documentation.
< 100ms
API Latency Target
99.95%
Relayer Uptime SLA
04
4. Staging & Security Testing
The complete system is deployed to a staging environment mirroring production. We execute rigorous integration tests, load tests simulating 1000+ TPS, and security penetration testing to identify and remediate vulnerabilities.
200+
Test Scenarios
Full Pen Test
Security Validation
05
5. Mainnet Deployment & Monitoring
We manage the phased mainnet rollout, including contract deployment, relayer infrastructure provisioning on AWS/GCP, and integration of monitoring tools (Datadog, Sentry). Real-time dashboards track health, volume, and security events.
< 48 hours
Deployment Window
24/7
Monitoring & Alerts
06
6. Ongoing Support & Optimization
Post-launch, we provide ongoing maintenance, including performance tuning, gas cost optimization, and protocol upgrades. We offer SLAs for incident response and regular health reports to ensure long-term reliability.
< 15 min
Critical Response SLA
Quarterly
Performance Reviews
security-architecture
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and rigorous internal audits to mitigate risk from day one.
Deliver a secure, auditable, and gas-optimized contract suite in as little as 2-4 weeks for an MVP.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom multi-chain implementations. - DeFi & DAOs: Automated market makers (AMMs), staking pools, governance modules, and treasury management.
- Enterprise Logic: Custom business logic for supply chain, identity, and asset tokenization with compliance hooks.
- Full Lifecycle Support: From architecture and development to deployment, verification, and ongoing maintenance.
Technical & Commercial Considerations
Frequently Asked Questions on Bridge API Development
Get clear answers on timelines, costs, security, and support for your cross-chain bridge API project. Based on insights from 50+ enterprise deployments.
A production-ready, audited bridge API gateway typically deploys in 2-4 weeks from kickoff. This includes architecture design, smart contract development, API layer integration, and a basic security audit. Complex multi-chain deployments with custom liquidity models or novel consensus can extend to 6-8 weeks. We provide a detailed sprint-by-sprint timeline in our initial proposal.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall