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SuperTokens

Open-source authentication service with backend and frontend SDKs and prebuilt login UI, self-hosted or on SuperTokens' managed cloud.

Visit supertokens.com ↗Pricing & calculatorAlternatives
Works with AI agents:llms.txt
Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Where it fits

Authentication · Open-source serviceOpen-source auth with prebuilt login UI and backend SDKs, self-hosted for free or on their cloud.Trade-off: The core runs as a separate service next to your backend; MFA and some features are paid add-ons on the cloud.

How SuperTokens itself is built

4 tools, from its own code, website and Product Hunt page.

Next.jsPostmarkSendGridVercel

Who uses it

1 makers' products, each linked to the source that shows it, and 9 open-source projects that declare it in their code.

The maker says so 1Declared in code 9How evidence is collected →
AgentaThe open-source workspace for your agents

“Supertokens made it easy to set up passwordless email and GitHub authentication. It's the best open-source authentication library that works end-to-end with Python.”

AuthenticationMaker says so · source ↗

Open source: a project that declares SuperTokens as a dependency in its public code — verifiable, but not necessarily a live product.

What makers say

1 makers on why they use SuperTokens, in their own words on Product Hunt.

Supertokens made it easy to set up passwordless email and GitHub authentication. It's the best open-source authentication library that works end-to-end with Python.
AgentaSep 2026 ↗

Alternatives to SuperTokens

All alternatives by situation →
ClerkDropping prebuilt sign-in, profile and organization UI into a React or Next.js app.Free tier305 makers · authentication
SupabaseApps already on Supabase — auth is part of the same project as the database.Open sourceFree tier13 makers · authentication
FirebaseMobile and client-heavy apps already using Firebase.Free tier4 makers · authentication
Better AuthTypeScript apps that want users and sessions in their own database, at no cost.Open sourceFree tier6 makers · authentication
WorkOSB2B SaaS that will need enterprise SSO and directory sync.Free tier19 makers · authentication
Auth0Complex identity needs and enterprise compliance.Free tier21 makers · authentication
KeycloakA self-hosted identity server with SSO, OpenID Connect, SAML and user federation for several apps at once.Open sourceFree tier3 makers · authentication
Hexclave (Stack Auth)A Clerk-style developer experience you can also self-host.Open sourceFree tier2 makers · authentication
LogtoOpen-source OIDC auth with hosted sign-in pages, organizations and roles, on a cloud with 50,000 free monthly active users or on your own servers.Open sourceFree tier2 makers · authentication

On Product Hunt, people weigh it against: Clerk, Descope, WorkOS, Stytch, Auth0, PropelAuth.

Questions makers ask about SuperTokens

Is SuperTokens free?

Yes — there is a free tier a small product can run on; paid use starts at $0.02 per MAU. source ↗

Is SuperTokens open source or self-hostable?

Open source, and you can self-host it. source ↗

Can AI coding agents work with SuperTokens?

It serves an llms.txt docs index.

Who uses SuperTokens?

1 makers' products we track, each with a source, and 9 open-source projects declare it in their code. source ↗