Ops Development & AI Practice

Jun 29, 2025 · Cloud Computing

Automate Browser‑Based MFA for AWS CLI with Cognito and Credential Process

By leveraging Cognito’s Hosted UI and the OAuth2 Authorization Code Grant, a lightweight local helper launches a temporary web server, opens the browser for MFA login, exchanges the code for tokens, and feeds temporary AWS STS credentials into the AWS CLI via the credential_process feature, delivering a seamless, SSO‑like experience.