We architect and deploy production-grade smart contracts that are secure by design. Every contract undergoes rigorous internal audits and formal verification before we recommend third-party review.
LABS
Services
Polkadot Parachain for Card Systems
We design and develop dedicated Polkadot parachains or parathreads to serve as scalable, interoperable settlement layers for decentralized payment card networks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built to your exact specifications, from concept to mainnet deployment.
- Custom Logic: Tailored
Solidity/Rustcontracts for DeFi, NFTs, DAOs, and enterprise use cases. - Security-First: Built with
OpenZeppelinstandards, automated testing, and comprehensive audit trails. - Full Lifecycle: Development, deployment, and upgrade management with multi-sig governance.
Reduce your time-to-market from months to weeks. We deliver a fully functional MVP in 2-4 weeks, with guaranteed code quality and security best practices.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Parachain Capabilities We Deliver
We build and operate dedicated Polkadot parachains for financial institutions, delivering the security of a sovereign blockchain with the interoperability of the DotSama ecosystem. Our focus is on reliability, compliance, and performance for mission-critical card systems.
01
Dedicated Parachain Launch
Full lifecycle management from Substrate framework selection to mainnet deployment on Polkadot or Kusama. We ensure your chain is optimized for high-throughput transaction processing and secure cross-chain messaging (XCMP).
8-12 weeks
Production Launch
Certified
Substrate Builders
02
Custom Runtime & Pallet Development
Build the business logic for your card network directly into the chain's runtime. We develop custom transaction pallets for authorization, settlement, and loyalty programs with deterministic execution and sub-second finality.
< 500ms
Block Time
Rust
Core Language
04
Validator Set Management & Security
We architect and manage a decentralized, permissioned validator set tailored for financial compliance. Includes slashing condition design, key management, and continuous monitoring for 99.9% uptime.
99.9%
Uptime SLA
On-chain
Governance
05
Regulatory Compliance Layer
Integrate identity verification (DID pallets), transaction monitoring, and audit trails directly into the parachain runtime. Designed to meet AML/KYC requirements while preserving user privacy where possible.
W3C
DID Standard
Granular
Access Control
06
Performance Optimization & Scaling
Continuous tuning of runtime parameters, database indexing, and state pruning to handle peak loads of card transactions. We implement parachain-as-a-service tooling for seamless upgrades and maintenance.
10k+ TPS
Theoretical Capacity
Zero-Downtime
Upgrades
benefits
FROM PARACHAIN TO PAYMENT
Business Outcomes for Your Card Network
Deploying a dedicated Polkadot parachain transforms your card system from a cost center into a programmable, interoperable revenue engine. We deliver the infrastructure for measurable business growth.
01
Sub-Second Cross-Chain Settlements
Leverage Polkadot's shared security and XCM for instant, trustless settlement between your card network, partner banks, and other blockchains. Eliminate multi-day ACH delays and counterparty risk.
< 2 sec
Finality
0.1%
Settlement Cost
02
Programmable Compliance & KYC/AML
Embed regulatory logic directly into the parachain runtime. Automate sanctions screening, transaction limits, and jurisdictional rules with upgradable, on-chain pallets audited by security firms.
SOC 2 Type II
Framework
Real-time
Compliance Checks
03
Interoperable Loyalty & Rewards
Issue fungible and non-fungible reward tokens that can be traded, staked, or spent across any connected chain in the Polkadot ecosystem. Increase customer LTV with composable incentive programs.
ERC-20/721/1155
Token Standards
30%+
Avg. LTV Increase
04
Reduced Infrastructure & Fraud Costs
Replace legacy clearinghouses and manual reconciliation with a single source of truth. Smart contracts automate dispute resolution and fraud detection, slashing operational overhead.
60-80%
Ops Cost Reduction
> 99.9%
Uptime SLA
05
Monetizable Data & Analytics Layer
Your parachain becomes a verifiable data marketplace. Offer anonymized transaction insights, credit scoring feeds, and merchant analytics as on-chain services to partners and institutions.
Substrate Indexer
Built-in
Real-time
Data Feeds
06
Future-Proof Protocol Upgrades
Governance-enabled forkless upgrades allow your network to adopt new features, security patches, and interoperability standards without downtime or disruptive hard forks.
0 Downtime
Upgrades
< 2 weeks
Feature Deployment
From MVP to Mainnet
Structured Development Path
Our phased approach to building and scaling a secure, compliant Polkadot parachain for card systems.
| Phase & Deliverables | Discovery & Design | Core Development | Launch & Scale |
|---|---|---|---|
Parachain Architecture Design | |||
Custom Pallet Development (e.g., Card Logic) | 2-3 Core Pallets | 5-7 Core Pallets | Full Suite + Upgrades |
Cross-Chain Integration (XCM) | Basic Asset Transfers | Complex Logic & Oracles | Multi-Chain Settlement Hub |
Security Audit Scope | Critical Issues Only | Full Code Review | Continuous Monitoring & Re-audits |
Regulatory Compliance Review | Framework Design | Implementation Support | Ongoing Advisory |
Testnet Deployment & Testing | Rococo Testnet | Kusama Canary Network | Polkadot Mainnet |
Validator Set Configuration | Basic Setup | Optimized for Performance | Geographically Distributed |
Ongoing Support & Maintenance | 3 Months | 12 Months | Enterprise SLA (24/7) |
Estimated Timeline | 4-6 Weeks | 8-12 Weeks | Ongoing |
Estimated Investment | $50K - $80K | $120K - $200K | Custom (Contact for Quote) |
how-we-deliver
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts for tokens, DeFi protocols, and NFTs. Our code is built on Solidity 0.8+ with OpenZeppelin standards and undergoes rigorous internal audits before delivery.
Reduce your time-to-market from months to weeks with our battle-tested development framework.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, yield aggregators, and lending platforms.
- Security First: Every contract includes gas optimization, comprehensive unit tests, and a formal verification report.
tech-stack
ENTERPRISE-GRADE INFRASTRUCTURE
Technology & Protocol Foundation
We build your parachain on a foundation of battle-tested technology and rigorous protocol design, ensuring security, scalability, and seamless interoperability from day one.
02
XCMP Integration & Interoperability
Seamless cross-chain messaging (XCMP) setup for secure asset and data transfer between your parachain and the broader Polkadot ecosystem. Enables multi-chain card programs and liquidity aggregation.
03
Collator Node Infrastructure
Deployment and management of high-availability collator nodes with 99.9% uptime SLA. We ensure optimal block production and finality for your network, with monitoring, failover, and automated updates.
99.9%
Uptime SLA
< 6 sec
Block Time
04
On-Chain Governance Modules
Implementation of sophisticated, on-chain governance (OpenGov) for decentralized protocol upgrades and parameter tuning. Includes custom voting mechanisms for your cardholder and validator communities.
05
Security-First Development
Smart contract and runtime development following OpenZeppelin standards and security best practices. All code undergoes internal review and is prepared for external audits by firms like Quantstamp or Trail of Bits.
06
Parachain Auction Strategy
End-to-end support for the parachain slot auction process, from crowdloan campaign design and DOT acquisition strategy to technical onboarding and slot lifecycle management.
Polkadot Parachain Development
Frequently Asked Questions
Get clear answers on timelines, costs, and technical specifics for building a custom Card System on Polkadot.
A typical MVP deployment takes 6-10 weeks from kickoff to mainnet launch. This includes core pallet development, XCM channel configuration, and initial security audits. Complex systems with advanced features like multi-asset staking or cross-chain governance can extend to 12-16 weeks. We provide a detailed sprint-by-sprint timeline during the discovery phase.
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