Met age verification requirements across jurisdictions for its $60M token sale.
Identity verification without data custody
Run compliance checks, confirm user eligibility, and detect bots through one open SDK. Users prove what you need on their own device. You get the answer, without ever touching the underlying data.
One integration for...
01/ Eligibility checks
Perform age or nationality verifications to gate access.
Used for age-restricted platforms, compliance with UK/EU regulations, regional ticketing, ecosystem grants, and other geo-gated programs.
Built so there’s nothing to leak
The honeypot doesn’t exist because the data was never collected. The phone does the work; only the answer reaches your servers.
Step /01
User scans their ID
- Reads NFC chips on government IDs across 130+ countries. Verification relies on the chip’s cryptographic signature, so deepfakes, forgeries, and AI-generated IDs can’t pass.
- An optional liveness check verifies the person holding the phone is the ID owner.
Step /02
Phone creates a proof
- The passport’s digital signature is verified against the issuing country’s certificate, preventing forged or AI-generated documents.
- A cryptographic proof of the result is generated on-device. You verify the proof; the passport data never leaves the user’s phone.
Step /03
Verify what you need
- You receive a cryptographic proof confirming the user meets your requested attributes, verifiable in milliseconds via our SDK, or onchain.
- Proofs are stored in your dashboard to serve as an audit trail.
Start building
Six lines and an SDK call
Self-serve dashboard. SDKs for TypeScript. On-chain verifiers for Ethereum, Base, Aztec and other EVM chains.
Sign in with Google → First verification in minutes
Notes from the builders
We work in public
Featured · Case studyAztec Network
A look into online identity verification
The deepest written piece on what ZKPassport is, who it's for, and how it's deployed — published by Aztec Network.
Read · 12 MinJun 2025
Featured · TalkNoirCon 2
ZKPassport: Private Identity Verification with Michael Elliot | NoirCon2 2025
Michael Elliot, founder of ZKPassport, breaks down how zero-knowledge proofs can power private, secure identity verification, and why it matters for real-world applications.
Watch · YoutubeJul 2025
Featured · TalkDevcon SEA
ZKpassport: Private Unforgeable Identity | Devcon SEA
This talk presents ZKpassport, an identity verification solution integrating zero-knowledge proofs with ePassports to achieve privacy-preserving and unforgeable government-attested digital identities.
Watch · YoutubeNov 2024
More appearances
FAQ
The questions prospects ask
What user data is stored?
User personal data never leaves their own devices. No data is stored on ZKPassport servers, and no user data is ever sent to your servers. There’s nothing to breach, leak, or delete, and no data custody compliance for you to worry about.
How does it actually work?
The user taps their passport against their phone. Their device reads the NFC chip, verifies the issuing country signature, and generates a zero-knowledge proof that satisfies your predicates (e.g. over_18, not_sanctioned, unique). You verify the proof in your backend or on-chain. The underlying data never leaves the phone.
How do you stop spoofing or sybil attacks?
A real passport with a working chip is hard to fake, the issuing country’s signature is checked on-device against ICAO’s public-key infrastructure. And one passport produces one nullifier per app, so the same person can’t quietly create two accounts.
Which documents and countries are supported?
Passports, National ID cards and Residence Permits with a NFC from 130+ countries. Coverage tracks the ICAO 9303 standard if a country issues a chipped travel document, it works. The full registry is published in the docs.
How can it be free?
Other identity providers charge per verification because they sit in the middle; running OCR, hosting selfie review, paying data providers for registry lookups. We don’t do any of that. The verification is a pure cryptographic check between the chip in the user’s ID and your backend. We’re never in the loop, so there’s nothing to bill you for. Add-on services (white-label apps, hosted analytics, premium support) may carry a fee, but the verification itself is free.
Will my users see ZKPassport branding?
Today, yes; users install the ZKPassport app to scan their document. We’re rolling out iOS App Clips so the scan can happen inline in your flow without a separate install. White-label is on the roadmap for enterprise customers.
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