List of Decentralised Identity companies in Web3 (2026)

Solana Attestation Service is an onchain credential verification through signed attestations, enabling identity verification and compliance checks. The protocol associates off-chain data with wallet addresses while maintaining privacy through cryptographic proofs.

Proof of Machinehood is an onchain device attestation framework that establishes machine identity and hardware trust without excessive computation or capital. It places hardware attestation reports onchain through optimistic attestation, zero-knowledge proofs, and modular trust layers, enabling machines to sign data they produce and attest to the code they run. Applications can verify hardware-backed claims against an onchain registry for sybil-resistant interactions.

An on‑chain identity protocol for machines and AI agents that enables discovery, verifiable data, and secure interactions across systems.

nada.bot aggregates sybil resistance verification stamps from multiple third-party NEAR Protocol contracts, calculating human trust scores based on weighted stamp combinations. Administrators configure stamp approvals, weights, and human thresholds, while the contract enforces identity verification requirements for connected applications including quadratic funding rounds.

Nabox ID is a decentralized identity system that uses asymmetric cryptographic algorithms to create a unified Web3 identity across multiple blockchains. Users manage assets and data on different blockchain networks using a single set of keys and public keys. The platform provides identity verification and personal data services while protecting user privacy, and includes task completion features and community engagement tools for the Web3 ecosystem.

World ID is a privacy-preserving digital identity protocol implementing zero-knowledge proof verification to enable users to confirm humanness and uniqueness online without revealing personal information. The system operates through biometric iris-scanning via Orb devices or device-level authentication, generating cryptographic proofs that prevent bot access and sybil attacks while maintaining user anonymity through decentralized credential storage.

Layer3 Protocols provides two onchain systems deployed across EVM networks. CUBEs issues ERC-721 tokens as verifiable credentials for quest completions, recording protocol interactions and transaction metadata as a persistent cross-chain identity record. The Token Distribution Protocol uses the same contract infrastructure to release fungible tokens to wallet addresses based on verified onchain activity. Both systems are open-source and governed by the Layer3 Foundation.

A decentralized identity framework utilizing W3C DID specifications for cryptographic identity establishment, verifiable credential management, and privacy-preserving authentication across blockchain networks.

SNS operates a naming protocol on Solana that maps .sol domains to blockchain addresses and data. Users can register permanent domain names stored as NFTs, simplify transactions by using names instead of wallet addresses, build hierarchical domain structures through unlimited subdomains, and attach records such as profile pictures and website links. The service includes Twitter handle verification that links social accounts to wallet addresses, provides SDK integration for developers building identity features, and supports cross-application identity through ecosystem-wide domain resolution.

IOTA Identity is a decentralized identity solution for secure and private digital interactions, providing tools for DID and verifiable credentials on IOTA.

Platform for creating and managing custom Web3 domains and TLDs on Solana.

IceCreamSwap KYC is an on-chain identity verification service that issues ICEKYC, a non-transferable soulbound NFT, upon successful identity verification through a third-party partner. Project owners are required to complete KYC before listing tokens or launching projects on IceCreamSwap. Verified wallet addresses and token contracts receive a KYC badge that is publicly verifiable through the KYC Checker tool. Verified project owners can also delegate their KYC status to their token contracts via the KYC Delegator tool.

Internet Identity is a decentralized identity solution that enables users to authenticate to applications using biometric authentication and hardware security keys without passwords.

Passwordless authentication for web and mobile with email OTP, magic links, SMS, WebAuthn, and social logins. On signup, each user is provisioned a non-custodial wallet for one-click web3 onboarding.

SignPass is an on-chain digital identity system providing blockchain-registered credentials compatible with ICAO machine-readable passport standards. The system enables sovereign nations to issue permanent residency and visa programs through cryptographic registration on Sign Protocol. Users receive physical ID cards with QR codes linking to blockchain records for verification purposes.

ENS Manager App is a web interface for registering and managing ENS names, supporting domain registration, record management, and cross-chain address configuration. The application enables users to set up decentralized identity profiles with social media integration and subdomain creation.

Mastercard Crypto Credential creates verified digital identities for blockchain users, replacing complex wallet addresses with simple aliases for crypto transactions. The system verifies users meet established standards while confirming recipient wallet compatibility across participating exchanges. By providing identity infrastructure for blockchain networks, it enables compliant cross-border transfers and simplifies peer-to-peer crypto transactions between verified users on partner platforms.

Galxe Passport implements a universal web3 identity system using zero-knowledge proof encryption for credential storage. Users aggregate verifiable credentials from multiple sources into portable identity profiles while maintaining control over data sharing permissions. The system stores identity data in off-chain encrypted vaults with selective disclosure capabilities for privacy-preserving verification across applications.

HAPI ID is an on-chain digital identity system providing human verification and sybil resistance for Web3 users. It calculates a Trust Score through automated analysis of wallet activity history and issues verifiable on-chain attestations that DApps use to verify user credibility. The protocol guards against multi-account abuse, gates airdrop participation, and enables staking bonuses for verified users. Deployments are supported on NEAR, Ethereum, Aurora, Linea, BNB Chain, and Base.

Privado ID is an open-source middleware for privacy-preserving decentralized identity. The platform enables organizations to issue W3C-compliant verifiable credentials and verify identity claims using zero-knowledge proofs, both off-chain and on-chain across EVM-compatible blockchains. Built on the Iden3 protocol, the toolkit includes an Issuer Node for credential issuance, a Verifier SDK for off-chain and on-chain verification, Wallet and JS SDKs for building identity wallet applications, and Schema and Query Builder tools. A web wallet and mobile application provide end-user interfaces for storing and presenting credentials.

ZK Registry functions as a ZK Rollup for on-chain registry of abstract statements, enabling users to prove system state without revealing statement details. The registry aggregates standardized statements for identity verification, reputation, and proof-of-attendance use cases.

XName provides omnichain domain name registration through ERC-721 NFTs, enabling cross-chain identity resolution and domain management across multiple blockchain networks using Axelar and LayerZero messaging protocols.

Nevermined ID provides universal identity management for AI agents through persistent global identifiers and cryptographic integrity. The system enables agent discovery, authentication, and seamless integration across different networks and marketplaces using decentralized identity standards.

FortressNames™ is a patented naming system for cryptocurrency that replaces wallet addresses with human-readable @names. The system resolves each @name to a dynamically computed, one-time stealth address unique to each sender-receiver pair, preventing address reuse and shielding transaction history from public blockchain observers. Balance privacy is provided through the Confidentiality Machine, which blinds sender balances without requiring mixing. Selective disclosure and decentralized KYC/AML credential proofs enable on-demand compliance verification without full identity exposure. The system operates across multiple blockchains, incorporates quantum-proof cryptography, and is available via SDK and API for integration into wallets and applications.

Mavryk Domains is a decentralized identity service for registering and managing human‑readable domain names on the Mavryk blockchain.

Pubky Core provides open-source infrastructure for decentralized identity management, data routing, and hosting that powers Pubky applications.

Hyperledger Identus provides decentralized identity infrastructure through verifiable credential management and self-sovereign identity protocols. The system enables identity verification and privacy-preserving authentication for enterprise applications.

Blockchain-recorded digital residency ID issued by Palau, managed through RNS.ID infrastructure.

Swipleux ZeroID provides decentralized identity verification services through KYC processes and issues Soulbound Tokens for universal digital identity across Web3 platforms.

Rise ID provides blockchain-based professional identity management using ERC-725 smart contracts on Arbitrum. The system stores KYC status, work history, and professional credentials while enabling secure authentication and transaction signing for payroll operations.

Aptos Names provides human-readable domain name service for Aptos blockchain addresses using .apt extensions. The system replaces complex wallet addresses with memorable names while supporting subdomain creation and target address configuration.

Human Passport implements Sybil-resistant identity verification through verifiable credentials, enabling proof of personhood without exposing personal data. The system has processed over 34.5M credentials for 2M+ users and secured $200M+ in airdrops and grants.

Starknet ID is an identity and domain name protocol that enables users to create unique identifiers on Starknet, register .stark domains, and manage digital credentials. The system provides APIs for applications to integrate identity verification and human-readable addresses.

Civic Pass was an on-chain, non-transferable attestation enabling decentralized applications to gate access based on user verification criteria including age, location, CAPTCHA completion, identity document verification, uniqueness, and liveness checks. It deployed on Solana and Ethereum networks. The product was sunset in 2025, with CAPTCHA and identity verification discontinued on July 1, 2025, and uniqueness and liveness functionality discontinued on July 31, 2025.

Portals ID is an on-chain username system providing users with exclusive vanity URLs and custom identifiers for spaces and games within the Portals ecosystem, with tiered pricing based on character length.

Web3.bio aggregates identity data from ENS, Farcaster, Lens, Basenames, Linea Name Service, and Solana Name Service into a unified Identity Graph. The platform maps wallet addresses and domain names to link-in-bio profile pages displaying social connections, verified credentials, and onchain activity. A graph visualization feature shows cross-platform connections between Web3 and Web2 identities.

5N ID is a verifiable digital identity protocol on the Canton Network. Users connect external accounts including Google, GitHub, X, and LinkedIn, each cryptographically signed on-chain, to build a trust score. The protocol issues verifiable credentials without exposing personal data using zero-knowledge methods, and identities are registered as on-chain assets through a one-time purchase.

BlockID Report is a decentralized identity and data layer that issues a dynamic NFT for users to manage financial data and produce global credit reports while preserving privacy.

SDK for integrating Reclaim Protocol's identity and reputation verification features into applications.

Composable identity and username system for the Solana ecosystem.

Billions App is a mobile and web platform for privacy-preserving identity verification. Users complete a liveness check or scan an NFC-enabled government ID to generate verifiable credentials stored in a self-custodied digital wallet and backed by zero-knowledge proofs. Credentials can be reused across compatible applications and blockchain networks without repeated verification. The platform issues tiered credentials Human, Verified Human, and biometric Uniqueness—and supports portable Official Profiles with Basic, Verified, and Premium tiers.

Brove Passport converts Bitcoin transaction history into verified on-chain identity using cryptographic proofs, enabling reputation-based rewards and access without revealing balances.

Moonify Credential Verification is a credential verification app that stores employment and education records on blockchain and enables approvals for trusted checks.

Credentee is a specialized platform for issuing, authenticating, and sharing digital credentials.

Glow ID implements a decentralized identity system on Solana, allowing users to maintain an on-chain digital identity. The system enables users to control their digital presence through blockchain-based identity verification and management.

idOS is a decentralized identity and data storage network that lets users verify once and access multiple stablecoin applications across blockchains. It offers self-custodial encrypted data, biometric sign-in, and KYC orchestration for compliant onboarding.

VAAS implements document verification through Hedera Hashgraph technology, enabling authentication of digital information while maintaining data confidentiality and privacy.

shdwDrive helps you store and access files securely by using blockchain technology, ensuring privacy and availability without relying on central servers.

DSID is a reputation protocol that converts user activity into non-transferrable Social Attestation Tokens, enabling verifiable digital identity and wallet analytics.

Naming service for degen chain.

Everai ID creates on-chain identity profiles on Starknet, allowing users to claim personalized subdomains and manage social connections through decentralized identity standards.

Self is a zero-knowledge digital identity protocol and mobile app that lets users verify government IDs and disclose selected attributes like age or proof of humanity while keeping personal data on device. It enables privacy-preserving verification for Web2 and Web3 applications.

A decentralized identity verification protocol on Solana that enables users to prove their humanity through privacy-preserving cryptographic methods without disclosing personal information. The system provides anti-bot protection for applications while maintaining user anonymity through zero-knowledge proofs and secure verification mechanisms.

Web3 Domain Registration provides blockchain-based domain names through Unstoppable Name Service (UNS) and Crypto Name Service (CNS) smart contracts, enabling cryptocurrency address replacement and decentralized website hosting. The system operates on Polygon and Ethereum networks with permanent ownership and zero renewal fees.

Alastria ID is an open-source digital identity framework based on W3C Verifiable Credentials standards, enabling self-sovereign identity management with GDPR compliance for individuals and organizations across blockchain networks.

OfflineID is a universal decentralized identity system that connects devices, wallets, and social ties into a single, censorship-resistant profile. The system enables users to maintain portable social profiles that function without internet connectivity through privacy-first, encrypted peer-to-peer interactions and offline discovery capabilities.

SureCircle Identity Assurance is a cryptographic identity verification service for organizations facing AI impersonation risks. Credential holders verify themselves by signing a one-click identity challenge with their unique cryptographic key, producing audit-ready proof of identity in under 20 seconds. The service addresses executive deepfakes, vishing, and business email compromise by using provenance-based credentials that cannot be replicated by AI.