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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

Privacy-Preserving Meta-Transactions

We build custom gasless transaction relayers that use zero-knowledge proofs or trusted execution environments to sponsor user transactions while fully obfuscating sensitive on-chain data and preserving privacy.
Chainscore © 2026
overview
CORE INFRASTRUCTURE

Custom Smart Contract Development

Secure, audited smart contracts built to your exact business logic and deployed in weeks.

We architect and deploy production-grade smart contracts that power your core Web3 product. Our process delivers audit-ready code in 2-4 weeks, built on Solidity 0.8+ with OpenZeppelin security patterns.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 contracts with advanced features like vesting, staking, and governance.
  • DeFi Primitives: Automated Market Makers (AMMs), lending pools, yield aggregators, and derivative protocols.
  • Enterprise Logic: Multi-signature wallets, asset tokenization platforms, and custom on-chain business rules.

Every contract undergoes our three-stage security review before deployment, significantly reducing the risk of costly exploits and protecting your users' assets.

key-features-cards
ENGINEERED FOR ENTERPRISE

Core Architecture & Capabilities

Our privacy-preserving meta-transaction infrastructure is built on battle-tested cryptographic primitives and a modular architecture designed for high-throughput, secure applications.

01

Zero-Knowledge Proof Integration

Implement zk-SNARKs or zk-STARKs to validate transactions without revealing sender, recipient, or amount data. We integrate with leading proving systems like Halo2 and Circom for optimal performance.

zk-SNARKs/STARKs
Proof Systems
Gas-Free
User Experience
02

Relayer Network & Gas Abstraction

A decentralized, permissionless network of relayers that sponsors and submits transactions. Users sign messages, not gas payments, enabling seamless onboarding and complex multi-step operations.

< 5 sec
Relay Latency
Multi-Chain
Support
03

Modular Smart Account Architecture

Deploy ERC-4337-compatible smart contract wallets with session keys, batched operations, and custom security modules. We build on audited frameworks like Safe{Core} for maximum security.

ERC-4337
Standard
Safe{Core}
Base Framework
04

Compliance-Ready Privacy

Architected with selective disclosure and auditability. Generate regulatory proofs for transaction legitimacy without exposing private data, built to meet evolving global standards.

Selective Disclosure
Feature
On-Chain Proofs
Audit Trail
05

High-Availability Infrastructure

Fault-tolerant relayers, automated failover, and multi-region deployment ensure 99.9% uptime. Includes monitoring, alerting, and SLA-backed performance guarantees for enterprise clients.

99.9%
Uptime SLA
Multi-Region
Deployment
06

Custom Policy Engine

Define and enforce complex transaction rules: spending limits, whitelisted destinations, time-locks, and multi-signature requirements directly within the meta-transaction flow.

Programmable
Rules
On-Chain
Enforcement
benefits
TANGIBLE RESULTS

Business Outcomes for Your Product

Our privacy-preserving meta-transaction service is engineered to deliver measurable improvements to your product's core metrics, from user growth to operational security.

01

Zero-Friction User Onboarding

Eliminate the need for users to hold native tokens for gas fees. We handle gas sponsorship, removing the primary barrier to entry and enabling true Web2-like sign-up flows.

> 40%
Higher Conversion
< 10 sec
First Transaction
02

Enhanced Transaction Privacy

Decouple user identity from their on-chain activity. Our meta-transaction relayer system obscures the payer's address, protecting user data from public blockchain analysis.

100%
Payer Obfuscation
SOC 2
Compliant Relayers
03

Predictable & Reduced Gas Costs

Leverage our batched transactions and gas optimization strategies. We provide fixed, predictable gas pricing for your business, insulating you from network volatility.

Up to 30%
Gas Savings
Fixed Fee
Predictable Pricing
04

Enterprise-Grade Security & Reliability

Deploy with confidence using our audited smart contract frameworks and high-availability relayer infrastructure. Every component follows OpenZeppelin standards and undergoes rigorous testing.

99.9%
Relayer Uptime SLA
24/7
Monitoring & Support
05

Faster Time-to-Market

Integrate a production-ready meta-transaction system in weeks, not months. We provide SDKs, comprehensive documentation, and direct engineering support for rapid deployment.

2-4 weeks
Integration Timeline
Multi-Chain
EVM Support
06

Scalable Abstraction Layer

Future-proof your application. Our architecture abstracts gas management and relay logic, allowing you to easily update fee models or switch underlying protocols without refactoring core dApp code.

10k+ TPS
System Capacity
Modular
Upgradeable Design
The Infrastructure Decision for Privacy-Preserving Transactions

Build vs. Buy: Custom Relayer vs. Public Services

A technical and economic comparison of developing your own meta-transaction relayer infrastructure versus leveraging Chainscore's managed service, highlighting the trade-offs in time, cost, and risk.

Critical FactorBuild In-HousePublic Relay NetworksChainscore Managed Service

Time to Production

4-9 months

Immediate

2-4 weeks

Upfront Development Cost

$150K - $400K+

$0

$25K - $75K

Ongoing Infrastructure & DevOps

Your team, $50K+/year

Gas subsidies + network fees

Included in SLA

Security & Audit Burden

High (your responsibility)

Shared risk (public code)

Fully managed (audited & insured)

Custom Logic & Privacy Rules

Full control

None (one-size-fits-all)

Tailored to your dApp

Relayer Performance & Uptime SLA

Your responsibility

Best-effort (no SLA)

99.9% uptime SLA

Gas Abstraction & Sponsorship

Custom implementation

Limited/restricted pools

Flexible, multi-token models

Compliance & User Onboarding

Manual integration

Not applicable

Integrated KYC/AML options

Support & Incident Response

Internal team only

Community forums

24/7 dedicated engineering support

Total Cost of Ownership (Year 1)

$200K - $450K+

Variable, unpredictable

$50K - $150K (predictable)

how-we-deliver
CLIENT-CENTRIC DELIVERY

Our Development & Delivery Process

A transparent, security-first methodology designed to deliver production-ready privacy infrastructure with predictable timelines and zero surprises.

01

Architecture & Specification

We begin with a collaborative design sprint to define your privacy requirements, threat model, and gas optimization targets. Deliverables include a technical specification document and architecture diagrams.

1-2 weeks
Design Phase
100%
Spec Lock
02

Smart Contract Development

Implementation of custom meta-transaction relayers and privacy-preserving logic in Solidity/Vyper, using OpenZeppelin libraries and established patterns like EIP-2771 and EIP-712 for secure signatures.

Solidity 0.8+
Language
OpenZeppelin
Standards
03

Security Audit & Testing

Rigorous unit, integration, and fuzz testing followed by an internal security review. We prepare a comprehensive audit package for external auditors like Trail of Bits or Quantstamp.

100%
Line Coverage
Internal Review
Pre-Audit
04

Gas Optimization & Deployment

Final gas profiling and optimization to minimize user transaction costs. We manage the deployment process on mainnet and testnets, including proxy contract setup and initial relayer configuration.

< 0.01 ETH
Target Gas Cost
Multi-chain
Deployment
05

Relayer Infrastructure Setup

Deployment of scalable, fault-tolerant relayer nodes with monitoring, alerting, and automatic nonce management. Includes configuration for fee abstraction and sponsor whitelisting.

99.9% SLA
Uptime
< 1 sec
Relay Latency
06

Documentation & Handoff

Delivery of comprehensive technical documentation, integration guides for frontend SDKs (Web3.js, Ethers, Wagmi), and operational runbooks for your team. We provide post-launch support.

Full SDK Support
Integration
30 days
Support Included
security-compliance
SECURE FOUNDATIONS

Smart Contract Development

Production-ready smart contracts built with enterprise-grade security and gas optimization.

We architect and deploy custom smart contracts for tokens (ERC-20, ERC-721), DeFi protocols, DAOs, and enterprise logic. Every line of code is written with security-first principles and audited against the latest attack vectors.

Deliver a secure, audited, and gas-optimized contract suite in as little as 2-4 weeks.

Our process ensures reliability from day one:

  • Formal Verification & Audits: Multi-stage review with static analysis and manual auditing.
  • Gas Optimization: Reduce user transaction costs by up to 40% with efficient bytecode.
  • Upgradeability Patterns: Implement Transparent Proxy or UUPS for seamless future upgrades.
  • Comprehensive Testing: Full test suite with >95% coverage across multiple networks.

We provide full technical ownership and documentation, enabling your team to iterate confidently. Our contracts are built to scale, integrating seamlessly with your chosen EVM-compatible L1 or L2.

Privacy-Preserving Meta-Transactions

Frequently Asked Questions

Get clear answers on implementation, security, and ROI for your project.

A standard implementation for a single dApp takes 2-4 weeks from kickoff to mainnet deployment. This includes architecture design, smart contract development, relayer infrastructure setup, and integration with your frontend. Complex multi-chain deployments or custom privacy schemes may extend this to 6-8 weeks.

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
Privacy-Preserving Meta-Transactions | Chainscore Labs | ChainScore Guides