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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

Zero-Knowledge Cross-Chain Messaging

We develop custom cross-chain messaging layers where transaction details remain private. Using zero-knowledge proofs, we enable secure asset and data transfers between chains without exposing sensitive information.
Chainscore ยฉ 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts for your protocol or dApp.

We architect and deploy custom Solidity/Rust smart contracts that are secure, gas-optimized, and tailored to your business logic. Every contract undergoes a rigorous multi-stage audit process before mainnet deployment.

  • End-to-End Development: From initial design and OpenZeppelin integration to deployment and verification.
  • Security-First: Formal verification, unit/integration testing, and third-party audit coordination.
  • Protocol Expertise: ERC-20, ERC-721, ERC-1155, custom DeFi primitives, and cross-chain bridges.
  • Gas Optimization: Code reviews and optimizations to reduce user transaction costs by up to 40%.

Get a battle-tested foundation. We deliver contracts with 99.9% uptime SLAs and comprehensive documentation, enabling your team to iterate with confidence.

key-features-cards
ENGINEERED FOR ENTERPRISE

Core Technical Capabilities

Our zero-knowledge cross-chain messaging platform is built on verifiable cryptographic proofs, not trust assumptions. We deliver the security, speed, and scalability your application requires.

01

ZK-Proof Based Security

Messages are secured with succinct zero-knowledge proofs (ZK-SNARKs/STARKs), eliminating the need for trusted relayers or validator sets. Every state transition is cryptographically verified on-chain.

100%
Cryptographic Security
0
Trusted Assumptions
02

Sub-Second Finality

Achieve cross-chain message delivery in under 1 second for supported chains. Our optimized proof generation and verification pipelines minimize latency for real-time applications.

< 1 sec
Message Finality
10k+
TPS Verified
03

Universal Chain Support

Connect EVM chains (Ethereum, Arbitrum, Polygon), non-EVM chains (Solana, Cosmos), and Layer 2s through a single, unified API. We handle the protocol-specific complexities.

25+
Supported Chains
EVM & Non-EVM
Architectures
04

Gas-Optimized Verification

Our verification contracts are written in low-level Yul and Huff, reducing on-chain verification costs by up to 40% compared to standard Solidity implementations.

40%
Gas Reduction
Audited
Code (OpenZeppelin)
05

Fault-Tolerant Relayers

Decentralized, incentivized relayers with automatic failover ensure 99.9% uptime. No single point of failure for proof submission and data availability.

99.9%
Uptime SLA
< 5 sec
Failover Time
benefits
DELIVERABLES

Business Outcomes for Your Project

Our Zero-Knowledge Cross-Chain Messaging service delivers concrete, measurable results for your Web3 application. We focus on the technical and business outcomes that matter most to your team.

01

Instant Finality & Reduced Latency

Achieve sub-second message finality between chains, enabling real-time applications like cross-chain DEX swaps and gaming. Eliminate the multi-block confirmation delays of optimistic bridges.

< 1 sec
Message Finality
0 Gas
User Cost on Destination
02

Provable Security & Audit Trail

Every cross-chain message is accompanied by a ZK validity proof, verifiable on-chain. Your security posture is backed by formal verification and audits from firms like Trail of Bits.

100%
Proof Coverage
Formal Verification
Security Standard
03

Seamless Multi-Chain User Experience

Deploy a single, unified interface for users to interact with assets and logic across Ethereum, Arbitrum, Polygon, and other EVM chains without managing multiple wallets or bridges.

10+
Supported Chains
1-Click
Cross-Chain Actions
04

Faster Time-to-Market

Leverage our production-ready ZK circuits and relayers. Go from concept to mainnet deployment in weeks, not months, avoiding the complexity of in-house ZK development.

< 4 weeks
To Mainnet
Pre-Audited
Core Circuits
05

Predictable, Lower Operational Cost

Replace variable, high gas costs of optimistic bridges with a fixed-fee model. Our optimized proof generation reduces your relay infrastructure costs by over 60%.

60%+
Cost Reduction
Fixed Fee
Pricing Model
06

Enterprise-Grade Reliability

Built for 24/7 uptime with a decentralized relayer network and automated failover. We provide a 99.9% SLA for message delivery and proof generation availability.

99.9%
Uptime SLA
Geo-Redundant
Relayer Network
ZK Cross-Chain Messaging

Structured Development Packages

Compare our tiered service packages for implementing secure, production-ready zero-knowledge cross-chain messaging.

Feature / SpecificationStarterProfessionalEnterprise

Custom ZK Circuit Development

Smart Contract Audit (2x)

Supported Chains (Base)

2

5

Unlimited

Message Throughput

Up to 100 TPS

Up to 1,000 TPS

Custom Scaling

Proof Generation Time

< 5 seconds

< 2 seconds

< 1 second

Deployment & Integration Support

Self-service

Full Support

Dedicated Engineer

Uptime & Performance SLA

99.5%

99.9%

Incident Response Time

Business Hours

4 Hours

1 Hour

Ongoing Maintenance & Upgrades

Optional

1 Year Included

Multi-year SLA

Estimated Timeline

4-6 Weeks

8-12 Weeks

Custom

Starting Price

$25,000

$75,000

Custom Quote

how-we-deliver
PROVEN FRAMEWORK

Our Delivery Methodology

We deliver production-ready ZK cross-chain messaging with a structured, security-first approach that ensures reliability and accelerates your time-to-market.

01

Architecture & Protocol Design

We architect your ZK cross-chain solution, selecting the optimal proving system (e.g., Plonk, Groth16) and designing secure message formats for your specific use case (DeFi, gaming, identity).

2-4 weeks
Design Phase
100%
Custom Architecture
02

Circuit Development & Optimization

Our team writes and rigorously optimizes zero-knowledge circuits (using Circom, Halo2, or Noir) for efficiency, minimizing proof generation time and on-chain verification costs.

< 5 sec
Target Proof Gen
40-70%
Gas Cost Reduction
04

Relayer Network Deployment

We deploy and manage a decentralized relayer network with automatic proof generation and submission, ensuring high availability and censorship resistance for your messaging layer.

99.9%
Uptime SLA
< 1 min
Message Finality
06

Monitoring & 24/7 Support

Gain access to a dedicated dashboard for real-time monitoring of message flow, proof stats, and network health, backed by our engineering team's 24/7 incident response.

< 15 min
Response Time SLA
Real-time
Health Metrics
ZK Cross-Chain Messaging

Frequently Asked Questions

Get clear, technical answers to common questions about implementing secure, zero-knowledge cross-chain communication for your protocol.

Our engagement follows a structured 4-phase methodology: 1) Architecture & Design โ€“ We analyze your use case and design the optimal ZK circuit and messaging flow. 2) Circuit Development โ€“ Our engineers write and test the core zero-knowledge logic using Circom or Halo2. 3) Smart Contract Integration โ€“ We deploy and audit the verifier contracts on your target chains (e.g., Ethereum, Polygon, Arbitrum). 4) Relayer & Frontend Setup โ€“ We implement the off-chain prover and provide SDKs for seamless dApp integration. This ensures a production-ready system from day one.

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
Zero-Knowledge Cross-Chain Messaging | Chainscore Labs | ChainScore Guides