toolgrep / Auth & identity / FusionAuth
Alternatives to FusionAuth
FusionAuth: Authentication & User Management Software. 8 products similar to FusionAuth, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 7 of 8 offer an MCP server, 2 of 8 are open source.
- Authgear
Open-source auth and user management for consumer and frontline identity
- SSOJet
Add enterprise SSO to your B2B SaaS without rebuilding your existing auth system.
- LoginRadius
Customer identity and access management (CIAM) platform for authentication, authorization, and user management.
- Frontegg
The Identity Layer for Every SaaS Entry Point
- PropelAuth
Authentication for B2B products
- ZITADEL
Identity infrastructure, simplified
- Auth0
Secure AI Agent & User Authentication
- WorkOS
Enterprise authentication and identity platform for SaaS companies
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| FusionAuth | Freemium | yes | yes | no | yes | no |
| Authgear | Freemium · from $0/month | yes | yes | yes | yes | yes |
| SSOJet | Freemium · from $118/month (Business, billed annually, 2 connections) | yes | yes | yes | yes | no |
| LoginRadius | Freemium | yes | yes | yes | yes | no |
| Frontegg | Freemium | yes | yes | yes | yes | no |
| PropelAuth | Freemium | yes | yes | yes | yes | no |
| ZITADEL | Freemium · from US$ 0 | yes | yes | no | yes | yes |
| Auth0 | Freemium | yes | yes | yes | yes | no |
| WorkOS | Freemium | yes | yes | yes | yes | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/fusionauth/alternatives