auth

Kinde

Flexible authentication, user management, and feature flags

Auth + user mgmt + feature flags + billing (preview). Generous free tier (10.5k MAU), simple pricing, built-in orgs and permissions.

Kinde website ↗Docs ↗

Pricing

Tier	Price	Notes
Free	Free	10,500 MAU included. MFA, B2B orgs, custom domain, 2 custom roles, 1 webhook, 2 environments.
Pro	$25/mo	Unlimited webhooks, roles, feature flags, API keys. Remove Kinde branding. SOC 2 attestation.
Plus	$75/mo	Unlimited enterprise SSO, API scopes, org-owned M2M apps, 6 environments.
Scale	$250/mo	11 environments, custom domain per org, SCIM, MFA triggers, 30-day audit logs.
Enterprise	Custom	Custom. Dedicated infra option, volume discounts, custom SLAs.

Limits

Tier	Metric	Value	Notes
—	mfa factors	TOTP, SMS, Email, Passkey	Supported MFA factors
—	session max hours	24 hours	Default session max age (configurable)
free	custom roles	2 roles	Free custom roles
free	environments	2 envs	Free environments
free	feature flags	10 flags	Free feature flags
free	mau included	10500 users/month	Free MAU
free	webhooks	1 webhooks	Free webhooks
plus	enterprise sso	unlimited	Plus SSO connections
plus	environments	6 envs	Plus environments
plus	mau included	10500 users/month	Plus base MAU
plus	overage mau	$0.0163/MAU	Plus per-extra-user pricing
pro	mau included	10500 users/month	Pro base MAU
pro	overage mau	$0.0175/MAU	Pro per-extra-user pricing
scale	audit retention days	30 days	Scale audit log retention
scale	environments	11 envs	Scale environments
scale	overage mau	$0.0151/MAU	Scale per-extra-user pricing

Features

API Scopes — OAuth scopes for your APIs, enforced server-side (Plus+).
B2B Organizations — Multi-tenant orgs with user roles, invitations, feature flags per org. · docs
Custom Domain — Host auth at auth.yourbrand.com. Free tier includes this. · docs
Enterprise SSO — SAML 2.0 + OIDC enterprise connections (Plus unlimited). · docs
Feature Flags — Built-in feature flags with per-user/org overrides. No separate service needed. · docs
Kinde AI — AI-assisted query and insights over your Kinde data.
Kinde Billing (preview) — Built-in subscription billing linked to users/orgs. Stripe under the hood. · docs
Machine-to-Machine — Client credentials grant for service-to-service auth. · docs
Multi-Factor Auth — TOTP authenticator apps, SMS, email, passkey.
Passwordless — Email code + passkey (WebAuthn). · docs
Roles & Permissions — RBAC with roles → permissions. Assigned per user or per organization. · docs
SCIM Provisioning — Directory provisioning from IdPs (Scale tier).
Sign-in Widget — Hosted pages + themeable widget for login/signup. Customizable with CSS. · docs
Webhooks — Event webhooks: user.created/updated, organization events, MFA, etc. · docs

Developer interfaces

Slug	Name	Kind	Version
sdk-android	Kinde Android / Kotlin	sdk	1.x
sdk-flutter	Kinde Flutter SDK	sdk	0.x
sdk-go	Kinde Go SDK	sdk	1.x
sdk-ios	Kinde iOS / Swift	sdk	1.x
mgmt-api	Kinde Management API	rest	v1
mcp	Kinde MCP	mcp	—
sdk-nextjs	@kinde-oss/kinde-auth-nextjs	sdk	2.x
sdk-react	@kinde-oss/kinde-auth-react	sdk	4.x
sdk-node	@kinde-oss/kinde-nodejs-sdk	sdk	1.x
sdk-python	Kinde Python SDK	sdk	2.x

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Staxly is an independent catalog of developer platforms. Outbound links to Kinde are plain references to their official pages. Pricing is verified at publication time — reconfirm on the vendor site before buying.