We architect and deploy custom smart contracts on EVM and Solana with a focus on security-first development. Our process includes formal verification, comprehensive unit testing, and integration of battle-tested libraries like OpenZeppelin.
LABS
Services
AppChain Custom Payment Solution Development
End-to-end development of a dedicated, application-specific blockchain for your payment network. We deliver a fully operational AppChain with custom transaction logic, fee structures, and governance, giving you complete control over your payment infrastructure.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
Deliver a secure, auditable, and gas-optimized foundation for your dApp in as little as 2-4 weeks.
- Protocol Development: DEXs, lending/borrowing platforms, NFT marketplaces, and custom DeFi primitives.
- Security & Audits: Pre-deployment audits, automated vulnerability scanning, and adherence to
C4contest standards. - Integration Ready: Contracts are built for seamless interaction with frontends, oracles, and cross-chain bridges.
key-features-cards
TURNKEY APPCHAIN PAYMENT INFRASTRUCTURE
Core Capabilities We Deliver
We architect, build, and deploy custom payment-focused AppChains that deliver measurable business outcomes: faster settlement, lower costs, and enterprise-grade security.
01
Custom Payment Protocol Design
We design and implement purpose-built payment protocols on your AppChain, including escrow services, recurring billing, and cross-border settlement. Built with Solidity 0.8+ and OpenZeppelin security patterns.
< 2 sec
Settlement Finality
0.1%
Avg. Transaction Fee
02
Multi-Asset Payment Rails
Enable seamless payments in stablecoins (USDC, USDT), native tokens, and wrapped assets. We integrate bridges (LayerZero, Axelar) and oracles (Chainlink) for real-world price feeds.
10+
Asset Types Supported
24/7
Bridge Monitoring
03
Enterprise-Grade Security & Audits
From smart contract development to runtime security. Our code undergoes multi-stage audits, including automated analysis (Slither) and manual review, with formal verification available.
100%
Audit Coverage
Zero
Critical Bugs Shipped
05
High-Performance Node Infrastructure
We deploy and manage your validator nodes with 99.9% uptime SLA, real-time monitoring (Prometheus/Grafana), and automated failover to ensure payment rail reliability.
99.9%
Uptime SLA
< 50 ms
P95 Latency
06
Developer SDK & API Integration
Accelerate your product team with comprehensive SDKs (JavaScript/TypeScript, Python) and REST/WebSocket APIs for easy integration into existing fintech platforms.
2 weeks
Avg. Integration Time
Full
API Documentation
benefits
DELIVERABLES
Business Outcomes for Your Payment Network
Our custom AppChain payment solutions are engineered for measurable business impact, delivering the speed, cost, and reliability required for modern financial applications.
01
Sub-Second Settlement
Deploy a payment rail with finality under 1 second, enabling real-time transactions for retail, remittance, and P2P use cases.
< 1 sec
Transaction Finality
10,000+ TPS
Peak Throughput
02
Predictable, Low-Cost Infrastructure
Eliminate volatile gas fees with a dedicated chain. Set fixed transaction costs and reduce operational expenses by over 90% compared to public L1s.
> 90%
Cost Reduction
$0.001
Fixed Tx Fee
03
Regulatory & Compliance Readiness
Build with integrated compliance modules (KYC/AML) and privacy features (zk-SNARKs) from day one, accelerating time to regulatory approval.
Built-in
KYC/AML Modules
SOC 2 Type II
Security Framework
04
Seamless Cross-Chain Liquidity
Connect to major DeFi ecosystems (Ethereum, Solana, Polygon) via secure bridges, ensuring deep liquidity for your stablecoins or payment tokens.
< 3 min
Bridge Time
10+ Chains
Native Support
05
Enterprise-Grade Uptime & Support
Operate with 99.9% SLA-backed infrastructure, 24/7 monitoring, and dedicated technical support to ensure zero payment downtime.
99.9%
Uptime SLA
< 15 min
Support Response
06
Rapid Deployment & Time-to-Market
Launch a production-ready, audited payment AppChain in 6-8 weeks using our modular framework, bypassing 6+ months of in-house development.
6-8 weeks
To Production
3+ Audits
Pre-Launch
Choose Your Path to Production
Structured Development Tiers
Transparent pricing and feature comparison for our custom payment solution development packages. Each tier is designed to accelerate your time-to-market while ensuring security and scalability.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Payment Smart Contracts | |||
Gas Optimization & Cost Analysis | |||
Integration with Major Wallets (MetaMask, WalletConnect) | |||
Multi-Chain Deployment (EVM) | 1 Chain | Up to 3 Chains | Unlimited |
Formal Security Audit Report | Basic Review | Full Audit by Partner Firm | Full Audit + Continuous Monitoring |
Deployment & Mainnet Launch Support | Guidance | Hands-on Support | Managed Launch |
Post-Launch Monitoring & Alerting | 30 Days | 90 Days | 1 Year SLA |
Priority Technical Support | Email (48h) | Slack Channel (24h) | Dedicated Engineer (4h SLA) |
Custom Tokenomics & Fee Structure Design | |||
Regulatory Compliance Consultation (Travel Rule, AML) | |||
Estimated Timeline | 4-6 Weeks | 6-10 Weeks | 10+ Weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
FROM CONCEPT TO PRODUCTION
Our End-to-End Delivery Process
We deliver a complete, battle-tested payment AppChain in 8-12 weeks. Our process is designed for technical founders who need a secure, scalable solution without the operational overhead.
01
Discovery & Architecture Design
We conduct a deep technical workshop to define your payment logic, tokenomics, and consensus model. You receive a detailed technical specification and architecture diagram for stakeholder sign-off.
2-3 days
Workshop
1 week
Architecture Plan
02
Core Smart Contract Development
Our team builds your custom payment and settlement logic in Solidity 0.8+ using OpenZeppelin libraries. Every contract undergoes our internal security review before formal audit.
4-6 weeks
Development
100%
Code Coverage
03
Security Audit & Penetration Testing
Your core contracts are audited by a leading third-party firm (e.g., Quantstamp, CertiK). We conduct penetration testing on the node infrastructure and RPC endpoints.
2-3 weeks
Audit Cycle
Critical: 0
Guarantee
04
Testnet Deployment & Integration
We deploy your AppChain to a dedicated testnet, configure validators, and provide SDKs for your frontend team. We support full integration testing with your existing payment stack.
1-2 weeks
Deployment
24/7
Dev Support
05
Mainnet Launch & Validator Onboarding
We manage the genesis block creation, validator set initialization, and bridge deployment. We provide a playbook for onboarding your initial validator partners.
< 48 hours
Go-Live
99.9% SLA
From Day 1
06
Monitoring, Maintenance & Scaling
We provide a custom Grafana dashboard for real-time monitoring of TPS, validator health, and bridge security. Our team offers ongoing maintenance and scaling advisory.
Real-time
Alerts
30 min
Response Time
The Infrastructure Trade-Off
AppChain vs. Traditional Payment APIs
A technical and business comparison between building a custom blockchain payment rail and integrating a traditional payment API.
| Key Factor | Traditional Payment APIs (Stripe, Adyen) | AppChain Custom Payment Solution |
|---|---|---|
Settlement Finality | 2-7 business days | < 2 seconds |
Transaction Fees | 2.9% + $0.30 per tx, plus FX | ~$0.01-$0.10 per tx (gas cost) |
Programmable Logic | Limited webhooks & basic rules | Full Turing-complete smart contracts |
Cross-Border Complexity | High (compliance, FX, banking partners) | Low (native global settlement layer) |
Data Ownership & Portability | Vendor-locked, siloed data | You own the ledger; data is portable and verifiable |
Time to New Market | Months (negotiate local partners) | Days (deploy to new chain/network) |
Upfront Development Cost | Low integration cost | Higher initial build ($50K-$200K+) |
Ongoing Cost Structure | High variable % of revenue | Predictable, low marginal cost |
Technical Control | Limited to API surface | Full control over protocol logic and upgrades |
Regulatory Footprint | Heavy (PCI DSS, money transmitter licenses) | Emerging (focus on node operation, KYC/AML layer) |
AppChain Payments
Frequently Asked Questions
Get clear answers about our custom payment solution development process, timelines, and support.
A typical end-to-end deployment for a custom payment AppChain takes 6-10 weeks. This includes 2 weeks for architecture design, 3-5 weeks for core development and smart contract auditing, and 1-3 weeks for deployment and integration. Complex features like cross-chain bridges or advanced compliance modules can extend this timeline.
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