Build with biometric identity.

One stack — from on-device SDKs to an agent-ready MCP server. Pick the layer that matches your problem.

Start building → Try the playground

The Wink stack

Three layers. One identity.

Click any layer to dive into its docs, playground, and recipes.

Layer 3 · AgentsWink MCP

Make your agent recognise people, charge cards, and prove identity over MCP. One-click connect from Claude, Cursor, or any MCP client.

recognize_face prepare_checkout request_biometric_auth + 14 more

Explore →

Layer 2 · IdentityWinkKey

Biometric credential for login, SSO, and IdP. Drop-in passkey replacement with face or voice — no password fallback, no shared secrets.

SAML IdP OIDC WebAuthn bridge Magic-link bootstrap

Explore →

Layer 1 · PrimitivesWink Core

Native SDKs and REST APIs for face, voice, wallet, and checkout. The building blocks every other layer composes on.

iOS SDK Android SDK Web SDK REST API

Explore →

Not sure which layer you need? Take the 30-second picker →

How to use this portal

Three ways in.

Docs

Concepts, quickstart, and reference for every layer. One search box covers the whole stack.

Wink CoreWinkKeyWink MCPPlatform

Playground

Live consoles for every layer, sharing one sandbox identity. Enrol once, try everything.

API consoleSDK demosWinkKey loginMCP one-click

Recipes

End-to-end builds for the most common goals. Fork, deploy, ship.

CheckoutLoginAgent paymentsIdP rollout

Featured recipes

Start from a working build.

All recipes →

Core WinkKey

Add biometric checkout to a Next.js storefront

Web SDK + WinkKey, ~10 minutes. Fork-and-deploy on Vercel.

MCP

Make your Claude agent take payments

Connect Wink MCP to Claude Desktop and sell something in 5 minutes.

WinkKey

Replace your IdP with WinkKey SAML

Federate Google Workspace with face login. Includes the IdP metadata.

Core

Embed face enrolment in iOS + SwiftUI

Native enrolment flow with the Wink iOS SDK. Six screens, ~150 LOC.

What's new

Changelog.

Each layer ships independently. Subscribe to just the layers you care about.

Subscribe →

Apr 28, 2026

MCPAdded recognize_faces_in_directory for batch face enrolment from a folder.

Apr 22, 2026

WinkKeySAML IdP now supports multiple SP profiles per tenant.

Apr 14, 2026

CoreiOS SDK 4.2 — voice enrolment with on-device transcription.

v0 wireframe