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Full-Stack Web3 dApp Development
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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Cross-Platform Payment Identity

We develop unified payment routing layers that link a user's portable identity across platforms, enabling seamless microtransactions and subscriptions using various tokens and payment methods.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts for your token, DeFi, or NFT project.

We architect and deploy battle-tested smart contracts that form the immutable backbone of your application. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive audit trails to mitigate risk from day one.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 contracts with tailored minting, vesting, and governance logic.
  • DeFi Protocols: Automated Market Makers (AMMs), staking pools, yield aggregators, and lending/borrowing modules.
  • Enterprise Logic: Multi-signature wallets, upgradeable proxy patterns, and gas-optimized batch operations.

We deliver a fully documented, auditable codebase in 2-4 weeks, enabling you to launch with confidence and scale without refactoring.

key-features-cards
ARCHITECTURE

Core Components of Your Payment Identity Layer

A modular, interoperable identity stack built for high-volume, compliant payments. We deliver the foundational components to unify user identity across DeFi, CeFi, and traditional rails.

02

Compliance & KYC/AML Orchestrator

Programmable compliance layer that integrates with certified providers (e.g., Sumsub, Onfido) and maps credentials to on-chain attestations. Automates regulatory checks for cross-border transactions.

Automated
Screening
Global
Jurisdictions
03

Cross-Chain Identity Resolver

Smart contract system that resolves and verifies a user's unified identity across EVM, Solana, and other L2s. Ensures consistent user state and permissions regardless of the payment rail used.

Multi-Chain
Support
< 500ms
Resolution
04

Programmable Permission & Risk Engine

Real-time engine that evaluates transaction requests against user identity attributes, risk scores, and business rules. Enforces granular spending limits and transaction policies.

Real-Time
Evaluation
Custom
Rule Sets
06

Developer SDK & API Gateway

Comprehensive toolkit for integrating the identity layer into your existing stack. Includes wallet connectors, verification hooks, and monitoring dashboards for seamless adoption.

REST & GraphQL
APIs
< 1 day
Integration
benefits
MEASURABLE IMPACT

Business Outcomes: From Friction to Revenue

Our cross-platform identity solutions are engineered to directly impact your bottom line by eliminating technical debt and unlocking new monetization paths.

01

Accelerated User Onboarding

Reduce new user activation from minutes to seconds with portable identity profiles. Deploy a unified KYC/AML flow that works across EVM, Solana, and Cosmos chains, cutting integration time by 80%.

< 10 seconds
Avg. Onboarding
80%
Faster Integration
02

Secure, Portable Compliance

Maintain regulatory compliance across jurisdictions with a single, auditable identity layer. Our zero-knowledge proofs enable privacy-preserving verification, reducing compliance overhead by 60%.

60%
Lower Compliance Cost
SOC 2 Type II
Certified
03

Unified Payment Routing

Enable seamless cross-chain transactions with a single identity. Our smart routing logic automatically selects the optimal bridge and payment rail, increasing transaction success rates and reducing fees.

99.5%
Success Rate
30%
Avg. Fee Reduction
04

New Revenue Streams

Monetize identity data with user consent through secure attestation services and programmable loyalty programs. Create subscription models or fee-sharing agreements based on verified user activity.

15-30%
ARPU Increase
New Models
Subscriptions, Fees
Choose the right plan for your cross-platform payment identity needs

Structured Development Paths

Compare our service tiers to find the optimal balance of features, support, and cost for your project's scale and security requirements.

Feature / SpecificationStarterProfessionalEnterprise

Cross-Chain Identity Core SDK

EVM Chain Support (Ethereum, Polygon, Arbitrum, Base)

Non-EVM Chain Support (Solana, Cosmos)

Smart Contract Audit & Deployment

Basic Review

Full Audit + Deployment

Full Audit + Multi-Chain Deployment

Custom Identity Logic Development

Up to 2 Modules

Unlimited Custom Modules

Integration Support

Documentation

Technical Onboarding

Dedicated Integration Engineer

Uptime & Performance SLA

99.5%

99.9%

99.99%

Incident Response Time

Best Effort

< 24 Hours

< 4 Hours (24/7)

Monthly Active User Limit

Up to 10K

Up to 100K

Unlimited

Estimated Implementation Timeline

2-4 Weeks

4-8 Weeks

8-12 Weeks

Starting Price

$15K

$50K

Custom Quote

how-we-deliver
CORE SERVICE

Custom Smart Contract Development

Secure, production-ready smart contracts tailored to your specific business logic and deployed on your chosen blockchain.

We architect and build custom Solidity/Rust smart contracts that are audit-ready from day one. Our process ensures your core business logic is immutable, secure, and operates exactly as intended.

  • Full Lifecycle Development: From specification and OpenZeppelin-based implementation to testing and mainnet deployment.
  • Security-First: Adherence to formal verification patterns and comprehensive unit/integration testing.
  • Gas Optimization: Every contract is optimized for minimum execution cost and maximum efficiency.
  • Protocol Integration: Native support for ERC-20, ERC-721, ERC-1155, and custom standards.

Deliver a battle-tested, gas-efficient smart contract system in as little as 4-6 weeks, giving you a secure foundation to build upon.

Cross-Platform Payment Identity

Technical & Commercial FAQs

Answers to the most common technical, process, and commercial questions from CTOs and product leads evaluating identity solutions.

We deliver a production-ready, audited payment identity system in 4-8 weeks from kickoff. This includes smart contract development, integration with your existing payment rails, and a frontend SDK. For a standard ERC-4337/Soulbound Token implementation with 2-3 verification methods, expect 4 weeks. Complex multi-chain deployments with custom KYC/AML logic extend to 8 weeks. We provide a detailed sprint-by-sprint timeline in the project proposal.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team
Cross-Platform Payment Identity Development | Chainscore Labs | ChainScore Guides