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LIVE WIRE
●BIOAUTH SDK — Face or fingerprint login and biometric agent approval. Migrate from Clerk in an afternoon. Request access now.●FREE up to 50,000 Monthly Returning Users (MRU) per app. No minimums.●MCR, proprietary account recovery, with no per-recovery fee.●BIOMETRICS stay on the device. We don't store faces. Launching January 2027.●Soft launch November 17. Get Early Access now.●BIOAUTH SDK — Face or fingerprint login and biometric agent approval. Migrate from Clerk in an afternoon. Request access now.●FREE up to 50,000 Monthly Returning Users (MRU) per app. No minimums.●MCR, proprietary account recovery, with no per-recovery fee.●BIOMETRICS stay on the device. We don't store faces. Launching January 2027.●Soft launch November 17. Get Early Access now.
01DOCS

Install the SDK
with AI.

One SDK, 3 Features.

One SDK for biometric login, MCR, proprietary account recovery and Agent authorization. Your users sign in with Face ID, Touch ID, Windows Hello or a fingerprint. Biometrics stay on their devices.

FREE TEST KEY AT SIGN-UP·BIOMETRIC-ONLY IDENTITY·MCR, proprietary account recovery
02THE SDK

Built for Developers.
3 Lines of Code.

Migrate from Clerk in an afternoon, and install with AI.

01SIGN UPCreate a free account at bioauth.ai
02TEST KEYGet a test key instantly — start building
03GO LIVEGet your real key and ship
04INTEGRATEAdd the SDK to your app or site
03OUR SERVICES

Our Services

Biometric login for your users, biometric approval for the agents that act for them, and recovery when a device is lost. Migrate from Clerk in an afternoon, and install with AI.

Biometric loginFace or fingerprint is the whole login. Matching happens on the user's device.
Agent approvalApprove agents with your biometric. Get a signed, tamper-evident receipt.
Install with AIGive your coding agent BioAuth's llms.txt and one prompt to add the SDK.
MCR account recoveryUsers get back into their account on a new device. There is no per-recovery fee.
Signed receiptsEach biometric approval produces a signed receipt your backend can verify.
Free toolsCheck device readiness, estimate MRU cost and test passkey domains before you build.

Signed receipts

When a user or their agent approves something with a face or fingerprint, BioAuth issues a signed receipt: what was approved, when, and that the device confirmed it. Anyone can verify it against our public keys.

04CAPABILITIES

Everything You Need.
Nothing You Don't.

Bio-authorization only - Auth-day, auth-night.

01LOGINFace or fingerprint · on-device
02RECOVERYMCR, proprietary account recovery
03BROWSERModern browsers that support passkeys
04PRIVACYNo biometric database
FREE TO START

Get Early Access

Sign up at bioauth.ai, then use the developer dashboard to get your API keys and add the SDK to your app or site.

Get Early Access →

Sign up free, get a test key instantly, and a real key when you're ready to launch.