FAQ

Frequently Asked Questions

Everything you need to know about zkMe, zero-knowledge credentials, and zk-Open Finance.

General

zkMe is a zk-Open Finance protocol that enables privacy-preserving identity verification and compliance. Using zero-knowledge proofs, users can prove facts about themselves — such as passing KYC or AML checks — without revealing their underlying personal data to any platform.

A zero-knowledge proof (ZKP) is a cryptographic method that allows one party to prove a statement is true without revealing any information beyond the truth of the statement itself. For example, a user can prove they are over 18 without disclosing their actual date of birth.

Open Finance extends open banking to more financial data sources and services. zkMe adds privacy-preserving identity and compliance so platforms can verify users without exposing personal data.

Traditional KYC providers collect, store, and process raw personal data on centralized servers. zkMe never collects or stores any personal data — instead, it generates a cryptographic proof on the user's device and issues an on-chain credential. Platforms receive only a yes/no signal, not the underlying data.

Credentials

zkMe offers 5 products: zkKYC, zkKYB, KYT, zkOBS, and zkKYA. Each credential is issued once and reused across integrated platforms.

Once a user completes a verification, the resulting credential is stored in their zkMe Identity Wallet. They can then use that credential across any platform that integrates zkMe — without repeating the verification process or re-exposing their data.

Credential validity depends on the type and the issuing policy. Most identity credentials (zkKYC, zkKYB) are valid for one year and can be renewed. Transaction-based credentials (KYT) are issued per transaction or session.

zkMe supports passports, national ID cards, driver licenses, and eID documents from 190+ countries. Liveness detection is included to prevent spoofing.

Integration & Technical

Integration takes under 30 minutes. Install the SDK, embed the widget, and add the verifier interface to your smart contract.

zkMe natively supports 30+ blockchains including Ethereum, Solana, Aptos, BNB Chain, Polygon, Arbitrum, Optimism, Mantle, Sei, ZetaChain, and more. New chains are added regularly.

Yes. A full testnet environment is available through the zkMe Dashboard. Developers can go from zero to their first credential issuance in under 30 minutes.

Yes. zkMe provides REST APIs, a JavaScript/TypeScript SDK, and smart contract interfaces for on-chain gating.

Compliance & Privacy

Yes. zkMe credentials are designed for FATF Travel Rule and MiCA compliance across VASPs and stablecoin use cases.

No. zkMe never stores raw personal data. All verification happens on the user's device. Only a cryptographic proof and an on-chain attestation are generated — no PII is transmitted or stored anywhere.

zkMe reduces platform data liability by avoiding raw personal data collection and storage during verification.

Yes. zkMe's smart contracts and ZK circuits have been audited by leading security firms. Audit reports are available on request.

Pricing

Passport and Personhood verification is free with no credit card required. Advanced packages start at $0.50 per credential per year.

The Compliance Package includes eID, national ID cards, driver licenses, KYB, LEI verification, AML screening, and proof of residence — all at $0.50 per credential per year.

The Agentic Package provides identity infrastructure for AI agents, including zkKYA and related trust tooling. Pricing is custom.

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