We use GitHub's real OAuth login. You'll be sent to github.com to approve access — we never see or store your GitHub password, and your identity is confirmed by GitHub itself, not typed into a form.
Sign in with GitHubNo password, no typed username. GitHub confirms who you are — that's what your API key and purchases get linked to.
No GitHub account? Enter your email and we'll send you a one-time code — this also creates your account automatically.