Sign-in for any website, for people and their agents
Key is a sign-in service built by Seth Shoultes: a code sent to your email, standard OpenID Connect for apps, and an MCP server that agents connect to with your consent.
What Key does
- Signs people in to your app with a six-digit code sent to their email. Key keeps no passwords.
- Speaks standard OpenID Connect, so any app that can check a token can use it.
- Lets an agent sign a person in and manage their apps through Key's API and MCP server, only with that person's consent.