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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

Decentralized Identity (DID) API Suite

A full-stack, production-ready API suite for issuing, verifying, and managing W3C-compliant Decentralized Identifiers (DIDs) and Verifiable Credentials. Build user-controlled identity, KYC, and access control systems in weeks, not months.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by experts for DeFi, NFTs, and enterprise applications.

We architect and deploy custom smart contracts that form the backbone of your Web3 product. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and rigorous internal audits before deployment to mainnet.

From concept to mainnet in as little as 2-4 weeks for an MVP, accelerating your time-to-market while ensuring robustness.

  • Token Standards: ERC-20, ERC-721, ERC-1155, and custom implementations.
  • DeFi Protocols: Automated Market Makers (AMMs), staking pools, lending/borrowing logic.
  • Enterprise Logic: Multi-signature wallets, DAO governance, and asset tokenization frameworks.
  • Full Audit Support: We prepare comprehensive documentation for third-party audits from firms like CertiK or Quantstamp.
key-features-cards
END-TO-END MANAGEMENT

Complete DID & Verifiable Credential Lifecycle

Our API suite handles the entire lifecycle—from creation and issuance to verification and revocation—so you can focus on building user-centric applications without managing complex cryptographic infrastructure.

01

DID Creation & Management

Generate and manage W3C-compliant DIDs (did:key, did:web) with secure key storage. We handle key rotation, recovery, and delegation, ensuring user sovereignty and developer simplicity.

< 100ms
DID Generation
W3C Compliant
Standard
02

Credential Issuance

Issue tamper-proof Verifiable Credentials (VCs) using JSON-LD or JWT formats. Our templates support selective disclosure and zero-knowledge proofs for privacy-preserving attestations.

JSON-LD / JWT
Formats
ZK-ready
Privacy
03

Credential Verification

Perform instant, cryptographically secure verification of VCs. Our service validates proofs, checks revocation status, and ensures schema compliance before returning a clear verification result.

< 200ms
Verify Latency
99.9% SLA
Uptime
04

Revocation & Status Management

Maintain secure, privacy-preserving revocation registries. Choose from status lists or accumulator-based methods to revoke credentials without leaking user identity or credential details.

Real-time
Status Updates
Accumulator
Method
05

Secure Storage & Presentation

Provide users with a secure, encrypted wallet SDK for storing credentials and generating Verifiable Presentations. Supports CHAPI and SIOPv2 for seamless, user-controlled data sharing.

AES-256-GCM
Encryption
SIOPv2
Protocol
06

Audit Logging & Compliance

Maintain immutable, GDPR-compliant audit trails for all issuance and verification events. Generate reports for regulators and demonstrate adherence to data protection principles.

Immutable
Audit Trail
GDPR-ready
Compliance
benefits
ENTERPRISE-GRADE INFRASTRUCTURE

Why Leading FinTechs Choose Our DID Suite

Our Decentralized Identity API Suite is engineered for financial services, delivering the security, compliance, and performance required to build trust at scale.

01

Compliance-Ready Architecture

Built-in support for W3C DID standards, Verifiable Credentials, and GDPR/KYC/AML compliance workflows. We provide the audit trails and data residency controls your legal team requires.

W3C & DIF
Standards Compliant
SOC 2 Type II
Certified
02

Sub-Second Identity Verification

Leverage our globally distributed node infrastructure for < 500ms DID resolution and credential verification. Eliminate user drop-off with banking-grade latency.

< 500ms
P99 Resolution
99.95%
Uptime SLA
03

Zero-Knowledge Proof Integration

Enable privacy-preserving KYC with zk-SNARKs and zk-STARKs. Users prove eligibility (age, jurisdiction) without exposing raw data, reducing your liability surface.

Circom & Noir
Circuit Support
~200ms
Proof Generation
04

Multi-Chain & Interoperable

Deploy identity anchors across Ethereum, Polygon, Solana, and Cosmos. Our cross-chain messaging protocol ensures portable identities and credentials.

8+
Supported Chains
IBC/CCIP
Protocols
05

Developer-First SDKs

Ship in weeks, not months. Our TypeScript, Python, and Go SDKs include pre-built modules for onboarding flows, credential issuance, and wallet integration.

< 2 weeks
Avg. Integration
Full OpenAPI
Spec
06

Managed Security & Key Custody

HSM-backed key management with multi-party computation (MPC) for decentralized custody. We handle key rotation, backup, and disaster recovery so you don't have to.

MPC/TSS
Custody Model
FIPS 140-2
HSM Level
DID API Suite Tiers

Technical Specifications & Compliance

Compare our DID API Suite packages to find the right fit for your project's scale and security requirements.

Feature / SpecificationStarterProfessionalEnterprise

W3C DID & VC Compliance

Supported DID Methods

did:ethr, did:key

did:ethr, did:key, did:web

All major methods + custom

Identity Wallet SDK

Basic

Advanced (React Native, Flutter)

Fully Customizable

Smart Contract Audit Report

Shared

Dedicated

Dedicated + Remediation

Verifiable Credential Types

3 Standard

10+ Standard

Unlimited Custom Schemas

API Rate Limits

1,000 req/day

100,000 req/day

Unlimited

Uptime SLA

99.5%

99.9%

99.99%

Support & Response Time

Community

Email (< 24h)

Dedicated Slack (< 4h)

Deployment Options

Shared Cloud

Dedicated VPC

On-Premise / Hybrid

Annual Subscription

$12,000

$48,000

Custom Quote

use-cases
ENTERPRISE-READY SOLUTIONS

Applications Across Industries

Our Decentralized Identity API Suite delivers verifiable credentials and secure user onboarding tailored to the specific compliance and operational needs of your sector.

01

DeFi & Web3 Finance

Implement KYC/AML-compliant onboarding with reusable credentials. Enable permissioned DeFi pools, Sybil-resistant airdrops, and automated compliance reporting for institutional clients.

< 5 sec
Credential Verification
99.9%
Uptime SLA
02

Gaming & Metaverse

Create portable, user-owned gaming identities. Securely manage in-game assets, enable cross-platform reputation, and prevent botting with Sybil-resistant credential issuance.

Zero-Knowledge
Privacy Proofs
< 2 weeks
Integration Time
03

Enterprise & Supply Chain

Issue tamper-proof credentials for supplier verification, employee access, and asset provenance. Integrate with existing IAM systems like Okta and Azure AD for seamless adoption.

W3C Compliant
VC Standards
SOC 2
Security Framework
04

Healthcare & Pharma

Manage verifiable credentials for patient data access, clinician licensing, and clinical trial participation with HIPAA-aligned privacy controls and selective disclosure.

HIPAA Aligned
Data Protocols
End-to-End
Encryption
05

Government & Public Sector

Deploy citizen digital IDs, verifiable permits, and secure voting credentials. Built on open standards (W3C DIDs/VCs) for interoperability and public auditability.

Open Standards
W3C, DIF
GDPR Ready
Compliance
06

Social & Creator Platforms

Build trust and combat spam with verified creator profiles and community badges. Enable users to own their social graph and reputation across platforms.

Sybil-Resistant
Onboarding
Portable
User Profiles
how-we-deliver
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built to your exact specifications.

We architect, develop, and deploy custom Solidity/Rust smart contracts that form the immutable logic layer of your application. Every contract is built with security-first principles, leveraging battle-tested libraries like OpenZeppelin and following industry standards (ERC-20, ERC-721, ERC-1155).

  • Full Lifecycle Development: From initial specification and architecture to deployment, verification, and post-launch monitoring.
  • Comprehensive Audits: Internal security review and integration with top external audit firms for final validation.
  • Gas Optimization: Code is meticulously optimized for lower transaction costs and efficient on-chain execution.
  • Upgradeability Patterns: Implementation of secure proxy patterns (TransparentProxy, UUPS) for future-proof, mutable logic where required.

We deliver audited, production-grade contracts in 2-4 weeks, giving you a secure and scalable foundation to build upon.

Technical & Commercial Details

Decentralized Identity API FAQs

Get clear answers on implementation, security, and support for our enterprise-grade DID infrastructure.

A standard integration of our DID API Suite takes 2-4 weeks from kickoff to production. This includes environment setup, credential schema configuration, integration with your existing auth stack, and a security review. Complex customizations (e.g., novel zero-knowproof circuits) may extend this timeline, which we scope and quote upfront.

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