Awsmux – Multi-account AWS CLI, up to 5.4x faster, 7.4x fewer tokens

In plain words

Awsmux is a command-line tool that runs AWS CLI commands across hundreds of accounts and regions simultaneously, then consolidates the results. It includes a built-in Model Context Protocol server for AI agents. The tool is distributed as a single Go binary and is designed for developers and infrastructure teams managing multi-account AWS environments who need faster query execution and reduced computational overhead.

written from the facts on this page · September 2026

From the sources

Run one AWS CLI command across hundreds of AWS accounts in parallel. MCP built in for AI agents. - 0hardik1/awsmux

Run one AWS CLI command across your whole fleet in parallel: hundreds of accounts in seconds, safely. One command fanned out across every account and region at once (100 parallel workers by default, --concurrency raises it), identities verified before anything runs, results merged into one stream. No more shell loops that take a coffee break to crawl the fleet. And anything that mutates is stopped by an approval boundary that even an AI agent with your admin credentials cannot talk its way past. The demo above is a real terminal against the bundled 100-account sandbox fleet; replay it yourself in one command with make build fleet-up . And it is measurably cheaper and faster for agents. In a…from github.com

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