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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

Wallet Address Book Management

Build secure, intuitive address book systems for your Web3 application. We deliver features like contact labeling, per-contact transaction history, and robust protection against address poisoning attacks.
Chainscore © 2026
overview
FOUNDATION

Blockchain Infrastructure Development

Build and scale secure, high-performance blockchain backends for your Web3 product.

We architect and deploy the core infrastructure your application needs to succeed: custom RPC nodes, indexers, and data pipelines. This eliminates the operational overhead of managing your own nodes, letting your team focus on product innovation.

Deploy production-ready infrastructure in 2-3 weeks, not months, with 99.9% uptime SLAs and multi-region redundancy.

  • Node Operations: Managed EVM (Ethereum, Polygon, Arbitrum) and Solana RPC nodes with real-time monitoring.
  • Data Indexing: Custom GraphQL APIs and subgraphs for efficient on-chain data querying.
  • Reliability: Built with OpenZeppelin Defender for automation and security best practices.
key-features-cards
ENTERPRISE-GRADE MANAGEMENT

Core Features of Our Address Book Systems

Secure, scalable infrastructure for managing wallet addresses across your organization. Reduce operational risk and accelerate transaction workflows.

01

Multi-Chain & Multi-Wallet Support

Unified management for addresses across 30+ EVM and non-EVM chains. Consolidate wallets from MetaMask, Ledger, and institutional custodians into a single, auditable interface.

30+
Blockchains
1
Unified Interface
02

Role-Based Access Control (RBAC)

Granular permissions for teams. Define who can view, add, or approve addresses. Enforce multi-signature workflows for high-value transactions to prevent single points of failure.

Tiered
Permission Levels
M-of-N
Approval Policies
03

Real-Time Risk & Compliance Screening

Automatically screen addresses against OFAC sanctions lists and known malicious actor databases. Flag high-risk destinations before transaction submission to ensure regulatory compliance.

Real-time
Screening
OFAC
Compliance
05

Immutable Audit Trail

Every address addition, label change, and permission update is cryptographically logged on-chain or in a tamper-proof database. Generate compliance reports for auditors in one click.

100%
Action Logged
On-chain
Verification
06

Gas-Optimized Batch Operations

Execute multi-transaction workflows—like payroll or airdrops—with a single batch call. Our systems optimize for gas efficiency, reducing costs by up to 40% compared to manual execution.

40%
Gas Savings
Batch
Execution
benefits
DELIVERABLES

Business Outcomes for Your Product

Our Wallet Address Book Management service delivers measurable improvements in security, user experience, and operational efficiency. Here are the concrete outcomes you can expect.

01

Enhanced User Security & Trust

Implement multi-signature approvals, transaction whitelisting, and real-time threat detection to reduce unauthorized transfers by 99%. Builds critical trust with your users.

99%
Reduction in unauthorized transfers
SOC 2
Compliance Ready
02

Faster User Onboarding

Reduce the friction of adding new contacts. Users can save addresses with custom labels and ENS/Unstoppable Domain resolution in under 10 seconds.

< 10 sec
Address Save Time
40%
Faster Onboarding
03

Reduced Operational Risk

Eliminate manual, error-prone address copying. Our system provides checksum validation, address poisoning detection, and automated audit logs for all saved contacts.

0
Human Error Incidents
Full Audit Trail
Compliance
04

Seamless Cross-Platform Sync

Provide a unified address book experience across web, mobile, and extension wallets. User contacts are encrypted and synced in real-time, increasing retention.

Real-time
Sync Speed
3 Platforms
Native Support
05

Scalable Infrastructure

Our managed service handles millions of address book entries with sub-100ms read latency. We provide a 99.9% uptime SLA, freeing your team from backend maintenance.

99.9%
Uptime SLA
< 100ms
Read Latency
Scalable Solutions for Every Stage

Wallet Address Book Development Tiers

Choose the right development and support package for your wallet address book, from MVP launch to enterprise-grade deployment.

Core CapabilitiesStarter (MVP)Professional (Growth)Enterprise (Scale)

Custom Smart Contract Development

On-Chain & Off-Chain Data Architecture

Basic

Advanced

Hybrid

Multi-Chain Support (EVM)

1 Chain

Up to 3 Chains

Unlimited

Security Audit & Penetration Testing

Basic Review

Full Audit Report

Audit + Formal Verification

Gas Optimization & Cost Analysis

Deployment & Mainnet Launch Support

Self-Service

Guided

Managed

Integration Support (Wallets, dApps)

Documentation

Assisted Setup

Custom SDK

Monitoring & Alerting SLA

Community

Business Hours

24/7 with 15-min Response

Ongoing Maintenance & Upgrades

Optional Retainer

Included SLA

Estimated Timeline

2-4 Weeks

4-8 Weeks

8-12 Weeks

Starting Price

$15K

$50K

Custom Quote

security-approach
FULL-STACK INFRASTRUCTURE

Custom Blockchain Development

End-to-end blockchain solutions from protocol design to production deployment.

We architect and build bespoke blockchain systems tailored to your specific business logic and performance requirements. Our full-cycle development delivers production-ready networks with 99.9% uptime SLAs and sub-2-second finality.

From a 2-week PoC to a mainnet launch in 8 weeks, we provide the technical leadership to move from concept to live deployment.

Our core deliverables include:

  • Consensus & Protocol Design: Custom Tendermint, Substrate, or Geth forks.
  • Smart Contract Suites: Secure Solidity 0.8+/Rust contracts with formal verification.
  • Node Infrastructure: Automated deployment, monitoring, and governance tooling.
  • Cross-Chain Bridges: Secure, audited interoperability with major L1s and L2s.

We mitigate technical risk through rigorous security practices:

  • Multi-stage audits (automated + manual + formal).
  • Penetration testing and economic attack simulations.
  • Incident response plans and on-call SRE support post-launch.
how-we-deliver
PROVEN FRAMEWORK

Our Delivery Methodology

We deliver secure, scalable wallet address book systems through a structured, transparent process designed for technical teams. Our methodology ensures predictable outcomes, clear communication, and enterprise-grade security from day one.

01

Discovery & Architecture Design

We begin with a deep technical deep dive to map your user flows, security requirements, and integration points. We deliver a comprehensive architecture document detailing the smart contract structure, key management strategy, and API design for your specific use case.

1-2 weeks
Phase Duration
100%
Requirements Locked
02

Smart Contract Development & Auditing

Our engineers build your core address book logic using battle-tested patterns (OpenZeppelin) and Solidity 0.8+. Every contract undergoes rigorous internal review followed by a formal audit from a top-tier third-party firm before deployment.

Certified
Security Audit
Gas-Optimized
Code Quality
03

Frontend SDK & API Integration

We provide a lightweight, type-safe SDK (React/TypeScript) and a robust REST/GraphQL API layer. This enables your engineering team to seamlessly integrate address book features—like contact management and transaction pre-filling—into your existing dApp in days, not months.

< 1 week
Integration Time
Full Docs
Developer Experience
04

Deployment & Continuous Support

We manage the secure deployment to your chosen network (Ethereum, Polygon, Arbitrum, etc.) and provide ongoing monitoring, incident response, and upgrade paths. Our team offers dedicated technical support to ensure 99.9%+ system uptime and rapid resolution.

99.9%
Uptime SLA
24/7
Support Coverage
Wallet Address Book Management

Frequently Asked Questions

Get clear answers on how we build, secure, and maintain your enterprise-grade address book solution.

We deliver a production-ready, custom address book in 2-4 weeks for standard requirements. The timeline depends on the number of blockchains, the complexity of permission models (e.g., multi-sig, role-based access), and UI/UX customization. We follow a structured sprint process with weekly demos to ensure alignment.

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