MCP Server Aws Sso vs AWS CLI MCP Server

aws_sso_login

Initiate AWS SSO device authorization flow to obtain temporary credentials. This flow works as follows: 1. Generates a unique user verification code and authentication URL 2. Opens a browser to AWS SSO login page (if `launchBrowser: true`) 3. You enter the verification code and complete AWS SSO login 4. Background polling automatically collects and caches the token 5. The cached token is used by other AWS SSO tools **IMPORTANT FOR AI ASSISTANTS**: When the tool returns authentication instructions: - ALWAYS check if a browser window opened automatically - If browser opened: Guide the user to complete authentication - If no browser opened: Instruct user to manually open the URL and enter code - Always provide both the verification code and URL as backup Prerequisites: - AWS SSO must be configured with a start URL and region - Browser access is required for authentication - You must have an AWS SSO account with appropriate permissions Returns: Authentication status, session details, verification code and URL

aws_sso_status

Check current AWS SSO authentication status. Verifies if a valid cached token exists and its expiration time. Does NOT perform authentication - only checks status. If no valid token exists, instructs you to run `aws_sso_login`. Use before calling `aws_sso_ls_accounts` or `aws_sso_exec_command`. Returns: Authentication status, session details, expiration time, next steps

aws_sso_ls_accounts

List all AWS accounts and roles accessible through AWS SSO. Provides essential information needed for `aws_sso_exec_command`: - Fetches all accessible accounts with IDs, names, and emails - Retrieves all available roles for each account - Handles pagination internally - Caches account and role information Prerequisites: - MUST first authenticate using `aws_sso_login` - AWS SSO must be configured with a start URL and region Returns: Account list with IDs, names, roles, and session status