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Stack Auth is an open-source authentication platform for modern web applications with support for organizations, roles, and hosted auth workflows.

Pricing

From $0.01 / MAU

Founded

Not listed

Team size

Solo / freelancer, Startup (1-50), Small business (51-200), Mid-market (201-1,000), Enterprise (1,000+)

Headquarters

Not listed

At a glance

Best for

Solo / freelancer, Startup (1-50), Small business (51-200), Mid-market (201-1,000), Enterprise (1,000+)

Pricing model

Tiered plans

Try before you buy

Free trial · Free plan

Integrates with

ClerkAuth0Firebase AuthSupabase Auth

About Stack Auth

Stack Auth provides a free or open-source offering. Stack Auth offers a free developer tier and publishes usage pricing for additional monthly active users beginning at /bin/zsh.01 per MAU. Pricing can vary by edition, usage, deployment, contract term, region, and negotiated services; buyers should confirm the current total with the vendor before purchasing.

Procurement & Fit

Structured facts from the vendor to help your security, finance, and procurement reviews move faster.

Trust

Security & compliance

The vendor hasn’t added security or compliance details yet.

Pricing

Commercial model

Pricing model: Tiered plans

Free trial: Yes

Free plan: Yes

Contract minimum: Not specified

Procurement

Purchasing & legal

The vendor hasn’t added purchasing & legal details yet.

Fit

Best-fit company size

Solo / freelancerStartup (1-50)Small business (51-200)Mid-market (201-1,000)Enterprise (1,000+)

Buyer Fit & Positioning

Implementation & Procurement

Commercial Fit & Ecosystem

Proof, Outcomes & Momentum

Alternatives, Migration & Buyer Objections