Best Auth & identity
13 products in Auth & identity that have a free tier, have an API and offer an MCP server, out of 28 in the category. Listed in ranking order and compared on pricing, free tier, API, MCP server, SDK and open source. 13 of 13 have a free tier, 13 of 13 have an API, 13 of 13 offer an MCP server, 3 of 13 are open source.
- Clerk
Authentication and user management for applications
- WorkOS
Enterprise authentication and identity platform for SaaS companies
- Stytch
APIs and SDKs to integrate authentication and security into your app.
- Permit.io
Runtime Access Control for the AI Era
- Ory
Identity and access management (IAM) for applications, enterprises, and AI agents. Cloud-native, API-first, and self-hostable.
- Okta
Authentication and user management platform for workforce and customer identities.
- Descope
Customer and agentic identity platform for authentication, access control, and identity management
- Auth0
Secure AI Agent & User Authentication
- LoginLlama
Login fraud & account takeover detection API
- Hexclave
The open-source platform for everything user
- PropelAuth
Authentication for B2B products
- Authgear
Open-source auth and user management for consumer and frontline identity
- Frontegg
The Identity Layer for Every SaaS Entry Point
Side by side
| # | Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|---|
| 1 | Clerk | Freemium | yes | yes | yes | yes | no |
| 2 | WorkOS | Freemium | yes | yes | yes | yes | no |
| 3 | Stytch | Freemium · from $0/month | yes | yes | yes | yes | no |
| 4 | Permit.io | Freemium | yes | yes | yes | yes | no |
| 5 | Ory | Freemium | yes | yes | yes | yes | yes |
| 6 | Okta | Freemium · from 6 | yes | yes | yes | yes | no |
| 7 | Descope | Freemium | yes | yes | yes | yes | no |
| 8 | Auth0 | Freemium | yes | yes | yes | yes | no |
| 9 | LoginLlama | Freemium · from $19/month | yes | yes | yes | yes | — |
| 10 | Hexclave | Freemium | yes | yes | yes | yes | yes |
| 11 | PropelAuth | Freemium | yes | yes | yes | yes | no |
| 12 | Authgear | Freemium · from $0/month | yes | yes | yes | yes | yes |
| 13 | Frontegg | Freemium | yes | yes | yes | yes | no |
Ranked by verification, completeness, extraction confidence and method (AI model or heuristic fallback), and API/MCP support; ties go to the newest listing. Paid plans aren't an input to the ranking. 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.
All 28 products in Auth & identity →
API
curl 'https://toolgrep.com/api/products?category=auth&has_free_tier=1&has_api=1&has_mcp=1'