OAuth
OAuth is the open standard for giving an app access to your account on another service without sharing your password; MCP uses it for remote servers. On October 13, 2026, 506 of the 575 auth-gated MCP servers linked from Claude listings (88%) ask for OAuth.
- Auth-gated servers using it
- 506 of 575
- Share
- 88%
- Token or key instead
- 30
More from our data
For a Claude connector, that is the sign-in screen you see the first time you connect it.