We architect and deploy custom smart contracts for tokens, DeFi protocols, and NFT ecosystems. Our development process includes formal verification and comprehensive audit preparation to ensure security and reliability.
LABS
Services
Compliant Transaction Relaying
Regulatory-first paymaster development with built-in KYC/AML checks, transaction monitoring, and reporting for sponsored transactions in regulated industries like finance and DeFi.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built for production by Web3-native engineers.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - DeFi Primitives: Automated market makers, liquidity pools, staking, and yield strategies.
- Security First: Built with
OpenZeppelinlibraries and tested against known attack vectors. - Gas Optimization: Every line of
Solidityis reviewed for efficiency, reducing user transaction costs.
From initial concept to mainnet deployment, we deliver production-ready contracts with 99.9% uptime SLAs and full technical documentation.
key-features-cards
ENTERPRISE-GRADE
Core Compliance Capabilities
Our transaction relaying infrastructure is engineered for regulated environments, providing the technical controls and audit trails required by financial institutions and high-compliance Web3 projects.
01
Real-Time Sanctions Screening
Automated OFAC, UN, and EU sanctions list screening for every transaction origin and destination address. Prevents interactions with sanctioned entities before relay execution.
< 100ms
Screening Latency
99.99%
List Accuracy
02
AML Risk Scoring Engine
Proprietary risk-scoring algorithm analyzes transaction patterns, source of funds, and counterparty history. Flags high-risk transactions for manual review based on configurable thresholds.
50+
Risk Indicators
Real-time
Scoring
03
Immutable Audit Trail
Every relayed transaction generates a cryptographically signed log with full context: user ID, risk score, screening result, and compliance officer approval. Data is stored in a tamper-evident ledger.
FIPS 140-2
Log Integrity
7+ years
Retention Policy
04
Jurisdiction-Aware Rule Engine
Enforce geo-specific compliance rules (e.g., MiCA, Travel Rule) dynamically. Automatically apply restrictions based on user location, transaction size, and asset type without code changes.
30+
Regions Supported
API-driven
Rule Updates
05
Enterprise Identity Binding
Securely map on-chain addresses to off-chain KYC/AML verified identities from providers like Synaps, Sumsub, or your internal system. Maintains privacy while ensuring traceability.
SOC 2 Type II
Data Handling
Zero-Knowledge
Proof Option
benefits
DELIVERABLES
Business Outcomes for Regined Platforms
Our Compliant Transaction Relaying service provides the technical infrastructure and legal guardrails required for regulated entities to operate on-chain with confidence and efficiency.
01
Regulatory Compliance by Design
Automated transaction screening against OFAC, AML, and jurisdictional watchlists. Our relayer integrates with leading compliance providers to enforce policies at the protocol level, ensuring every transaction meets your legal requirements.
0
Manual Reviews
Real-time
Screening
02
Reduced Operational Risk & Liability
Shift compliance enforcement from manual, error-prone processes to automated, auditable smart contract logic. Our system provides immutable proof of compliance for every relayed transaction, protecting your platform from regulatory penalties.
100%
Audit Trail
Automated
Policy Enforcement
03
Faster Time-to-Market for Regulated Products
Deploy compliant DeFi, payments, or asset tokenization products in weeks, not months. We provide pre-audited, jurisdiction-specific smart contract modules and a production-ready relayer, eliminating the need to build compliance infrastructure from scratch.
< 4 weeks
Integration Time
Pre-built
Modules
04
Enterprise-Grade Security & Uptime
Relay infrastructure with 99.9% SLA, multi-cloud redundancy, and private mempool protection. Built with institutional security standards, including SOC 2 Type II readiness and regular third-party audits of our core smart contracts.
99.9%
Uptime SLA
SOC 2
Compliance
05
Seamless User Experience with KYC/AML
Maintain a frictionless front-end while enforcing strict back-end compliance. Our solution allows for whitelisted user onboarding, transaction limits, and role-based access, all managed through a unified dashboard without degrading UX.
Single API
Integration
Role-Based
Access Control
06
Scalable Infrastructure for Global Operations
Support multi-jurisdictional operations with configurable rule sets per region or user segment. Our architecture scales to handle high-volume transaction flows while maintaining sub-second latency and consistent compliance checks.
Sub-second
Latency
Multi-region
Rule Sets
Make an informed infrastructure decision
Build vs. Buy: Compliant Relayer Analysis
A detailed comparison of the cost, time, and risk involved in developing a compliant transaction relayer in-house versus using Chainscore's managed service.
| Key Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 2-4 weeks |
Initial Development Cost | $150K - $400K+ | From $25K |
Security & Audit Overhead | High (unaudited, custom risk) | Low (pre-audited, battle-tested) |
Compliance Rule Engine | Custom build & maintenance | Pre-built, configurable rules |
Supported Chains & Wallets | Limited to team expertise | EVM, Solana, 50+ wallets |
Ongoing Maintenance & Updates | Dedicated 2-3 engineers | Fully managed, zero overhead |
Uptime & Reliability SLA | Your responsibility | 99.9% SLA with monitoring |
Regulatory Change Adaptation | Manual, reactive updates | Proactive, automatic updates |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $50K - $150K |
Expertise Required | Solidity, MEV, Compliance, DevOps | API integration only |
how-we-deliver
COMPLIANCE BY DESIGN
Our Regulatory-First Development Process
We build compliant transaction relaying infrastructure from the ground up, integrating legal guardrails directly into the protocol layer to mitigate regulatory risk and accelerate your time-to-market.
01
Jurisdictional Rule Engine
Dynamic, on-chain compliance logic that automatically enforces transaction rules based on user geography, token type, and counterparty status. Eliminates manual screening overhead.
150+
Jurisdictions Mapped
< 50ms
Rule Evaluation
02
Audit-Ready Architecture
Every component is built with full transaction provenance, immutable logs, and standardized reporting outputs (e.g., Travel Rule, FATF). Simplifies regulatory examinations and third-party audits.
100%
Transaction Traceability
SOC 2 Type II
Framework
03
Secure Key Management & Signing
Enterprise-grade, MPC-based signing infrastructure with granular policy controls and multi-party approval workflows. Isolates compliance logic from private key material.
MPC-TSS
Signing Protocol
FIPS 140-2
HSM Standards
04
Continuous Monitoring & Alerts
Real-time surveillance for anomalous patterns and policy violations with automated alerting and configurable escalation paths to your compliance team.
24/7
Monitoring
< 5 sec
Alert Latency
Technical & Commercial Details
Compliant Relaying: Frequently Asked Questions
Get clear, direct answers to the most common questions about implementing compliant transaction relaying for your Web3 application.
Compliant transaction relaying is an infrastructure service that validates and submits user transactions on-chain while programmatically enforcing regulatory and policy rules (e.g., sanctions screening, jurisdictional restrictions, AML checks). You need it to automate compliance at the infrastructure layer, reducing legal risk, enabling global user onboarding, and preventing unauthorized transactions before they reach the blockchain. It's essential for FinTechs, exchanges, and any application handling financial transactions in regulated markets.
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