zitadel
ZITADEL - Identity infrastructure, simplified for you.
casdoor
An open-source AI-first Identity and Access Management (IAM) /AI MCP & agent gateway and auth server with web UI supporting MCP, A2A, OAuth 2.1, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD