The AWS MCP Server now supports cross-account and cross-role access - AWS (opens in new tab)

Today, AWS announced cross-account and cross-role access for the AWS Model Context Protocol (MCP) Server, part of the . This feature allows developers using AI coding agents like Kiro, Claude Code, or Codex to work across multiple AWS accounts and AWS Identity and Access Management (IAM) roles within a single session, with no restarts required. Previously, switching profiles required stopping the AI coding session, updating local AWS credentials, and restarting the MCP server for every accoun...