aws-emulator
aws-emulator
AWS has released the aws-emulator emulator, which allows users to clone various AWS services locally for testing without using paid API keys. The emulator is written in Rust, and the project received 29,684 commits in the first three weeks. Currently, it requires Docker to run, but developers hope to provide a cross-platform single binary version in the future.
Same story1 other outlet also reported this
How the accounts differ:Simon Willison states the simulator uses Rust and received 29,684 submissions in the first three weeks; MarkTechPost mentions it is built by an AI agent and supports over 200 AWS services.
- Simon Willison··First·Reading now
AWS officially releases the aws-emulator emulator
- MarkTechPost··+20 h 8 min
AWS has released AWS Emulator: a local replica of over 200 AWS services built by an AI agent.
Adds:AI agent autonomously wrote and reviewed all the code.
In order of publication · later reports are added as they appear · Compared by AI from each outlet’s title and summary
11th November 2026 - Link Blog
aws-emulator. Finally, an official emulator from AWS to run tests against a local clone of their many different services without having to provision a paid API key to do so.
It's written in Rust by a huge swarm of agents - 29,684 commits in the first three weeks of the project. Swaminathan (Swami) Sivasubramanian wrote about how it came to be in a guest post on Werner Vogels' blog.
It currently requires Docker to run on macOS or Windows. I'm hoping they fix that in the future - it would be great if you could download a single binary and use that as part of a standard test suite in other languages and on other platforms.
Source: Simon Willison · simonwillison.net