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Amazon Cognito

AWS's managed user directory and sign-in service (user pools with OAuth 2.0/OIDC, social and SAML sign-in, hosted login pages).

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Where it fits

Authentication · Hosted serviceUser sign-up and sign-in for apps already built on AWS, with a permanent free tier of 10,000 monthly active users.Trade-off: Hosted login pages and error messages are hard to customise, some user pool settings can't be changed after creation, and exporting users with their passwords isn't supported.

Who uses it

No maker's live product on record yet, and 9 open-source projects that declare it in their code.

Declared in code 9How evidence is collected →

We haven't found a maker's live product that uses Amazon Cognito yet — only the open-source projects below, which declare it in their code.

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

Alternatives to Amazon Cognito

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

Questions makers ask about Amazon Cognito

Is Amazon Cognito free?

Yes — there is a free tier a small product can run on; paid use starts at $0.015 per MAU (Essentials) after 10,000 free. source ↗

Is Amazon Cognito open source or self-hostable?

Not open source, and hosted only.

Can AI coding agents work with Amazon Cognito?

No llms.txt, official MCP server or CLI found yet.

Who uses Amazon Cognito?

No maker's live product we track yet; 9 open-source projects declare it in their code. source ↗