Best Auth Solutions for OpenClaw: Clerk, Auth0, and Supabase Auth
User authentication for OpenClaw apps — from simple Clerk to enterprise Auth0. Compare pricing and integration complexity.
If your OpenClaw app needs user authentication (for SaaS features, paid tiers, or personalized experiences), here are the best options.
Best for Most: Clerk
Why: Built specifically for modern web apps. Excellent Next.js integration, pre-built components, and simple pricing.
import { ClerkProvider } from '@clerk/nextjs'
Cost: Free up to 10K monthly active users, then $25/month
Best for Free: Supabase Auth
Why: Free, full Postgres underneath, magic link + OAuth.
import { createClient } from '@supabase/supabase-js'
Cost: Free (with Supabase paid tiers for more features)
Best for Enterprise: Auth0
Why: Most mature, extensive integrations, enterprise compliance.
Cost: $23/month minimum, usage-based after 1000 users
Best for Simple: Firebase Auth
Why: Free tier generous, OAuth providers built-in.
Cost: Free up to 50K monthly active users, then $0.005-0.02/MAU
Comparison
| Provider | Free Tier | MAU Limit | Enterprise | |----------|-----------|-----------|-----------| | Clerk | Yes | 10K | $25/month | | Supabase Auth | Yes | Varies | Usage-based | | Auth0 | No | 1000 | $23/month | | Firebase Auth | Yes | 50K | $0.02/MAU |