🔑 Authentication Standard

OAuth 2.0 / OpenID Connect

OAuth 2.0 is the industry-standard authorization framework enabling third-party applications to obtain limited access to user accounts without exposing passwords. OpenID Connect (OIDC) builds on OAuth 2.0 to provide identity verification. Together they power "Sign in with Google/Apple/GitHub" across the web.

Used by these tools

🔑 Passwords

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⚙️ Dev Tools

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🤖 AI Tools

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📧 Marketing

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💬 Communication

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方案功能与规格

Spec	RFC 6749 (OAuth 2.0), OpenID Connect 1.0
Flows	Authorization Code + PKCE, Client Credentials, Device Authorization
Tokens	Access tokens (short-lived), Refresh tokens, ID tokens (JWT)
Pkce	PKCE — RFC 7636 (required for public clients)
Use Case	"Sign in with..." flows, API authorization, SSO