Passwordless auth for your B2B app.

One line to protect a route. Zero dependencies. Sign-in by email link, with roles, teams and partners built in.

Get Started Sign In

Drop it into the stack you already have.

Go Docs

go get stackure.com/sdk-go

import "stackure.com/sdk-go"

http.Handle("/admin",
  stackure.Auth()(handler))

JavaScript Docs

npm install stackure

import { auth } from 'stackure';

app.get('/admin',
  auth(), handler);

Python Docs

pip install stackure

import stackure

app = stackure.auth()(app)

Rust Docs

cargo add stackure

use stackure::auth;

let app = app.layer(
  auth());

A single-use link replaces passwords. One sign-in opens every app a person is entitled to, on any device.

Hand out roles, group people into teams and decide which teams get each app. Your app gets each person's teams and whether they're an app admin.

Share apps down to partner organizations with the permissions you choose, and let AI clients connect over MCP as the signed-in user.