SuperTokens

Self-hostable auth with add-ons

Free tier + paidAuth & user managementsupertokens.com

What it is

Open-source authentication you self-host, with a managed cloud option. Core email/password, social login and session management are free forever when self-hosted; you pay only for add-on modules such as MFA and account linking. Managed cloud is free under 5,000 MAU then $0.02 per MAU.

Why it earns a slot

The self-hosted core is genuinely full-featured rather than deliberately crippled, and its session handling with rotating refresh tokens is stronger than most drop-in competitors offer.

Know before you commit

Paid add-ons carry a $100/mo minimum regardless of your size, so adding MFA to a tiny app takes you from $0 to $100/mo. Self-hosting also means running a separate SuperTokens core service alongside your application.

Getting started

npm i supertokens-node

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Pricing snapshot

Self-host free · cloud free under 5k MAU then $0.02/MAU · add-ons $100/mo min

Snapshots move fast — verify at checkout, and post a field note if it changed.

Drop into your Lovable chat

Evaluate SuperTokens (https://supertokens.com) for this project, then use it only if it fits what we are already building.
Context: Self-hostable auth with add-ons. Open-source authentication you self-host, with a managed cloud option. Core email/password, social login and session management are free forever when self-hosted; you pay only for add-on modules such as MFA and account linking. Managed cloud is free under 5,000 MAU then $0.02 per MAU.
Reviewer notes (general, not written for this codebase): The self-hosted core is genuinely full-featured rather than deliberately crippled, and its session handling with rotating refresh tokens is stronger than most drop-in competitors offer.
Watch out for: Paid add-ons carry a $100/mo minimum regardless of your size, so adding MFA to a tiny app takes you from $0 to $100/mo. Self-hosting also means running a separate SuperTokens core service alongside your application.
Pricing: Self-host free · cloud free under 5k MAU then $0.02/MAU · add-ons $100/mo min
Setup: npm i supertokens-node
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

/api/public/tools/supertokens

Neighbourhood

How SuperTokens sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.