FusionAuth

FusionAuth 是一套可自托管也可用云版的身份平台，把认证、授权、多租户组织管理、单点登录、MFA、passkey 与无密码登录都收在一个安装包里，强调部署在自己的环境、不按 MAU 收费。API 优先，提供多语言 SDK、webhook 与主题定制，1.70 版本起加上面向 AI Agent 的最小权限模型。官网有对比 Auth0、Okta、Keycloak 的迁移指南。 🔗 文档: https://fusionauth.io/docs | 🔗 定价: https://fusionauth.io/pricing

FusionAuth is an identity platform you can self-host or run in its cloud, bundling authentication, authorization, organizations and multi-tenancy, SSO, MFA, passkeys and passwordless into one install that lives in your own environment rather than being priced per monthly active user. It is API-first with SDKs across languages, webhooks and theme customisation, and release 1.70 adds least-privilege models for AI agents. Migration guides against Auth0, Okta and Keycloak are published. 🔗 Docs: https://fusionauth.io/docs | 🔗 Pricing: https://fusionauth.io/pricing