AWS releases AWS Emulator for local cloud testing, built by AI agents
The open-source tool reproduces hundreds of AWS services on a developer's PC and was written entirely by AI agents, AWS says.
AWS has released AWS Emulator, an open-source tool that reproduces hundreds of its cloud services on a developer's own computer, allowing code to be validated without connecting to the cloud. The company announced the release on 11 نوفمبر 2026.
The emulator is free software developed in the Rust programming language and published under the CC0 public domain license. AWS also released the commit history and a list of known mismatches between the emulator and its live services.
According to Matt Goldberg, an AWS principal engineer, AI agents designed and wrote the entire service without human engineers writing or reviewing a single line of code. The agents used AWS's published Smithy API models as design blueprints, and their outputs were checked against actual AWS services.
In one example, Goldberg said he instructed the AI coding agent Kiro to recreate Amazon Simple Queue Service (SQS), and Kiro produced a working replica in 15 minutes.
Swami Sivasubramanian, AWS vice president of agentic AI and new technology, said the emulator illustrates software engineers taking on the role of “system orchestrators.”
Quick answers
What is AWS Emulator?
It is a free, open-source tool released by AWS that reproduces hundreds of its cloud services locally so developers can validate code without connecting to the cloud.
What license is AWS Emulator released under?
AWS published the code under the CC0 public domain license, along with the commit history and a list of known mismatches.
Who wrote the AWS Emulator code?
AWS principal engineer Matt Goldberg said AI agents designed and wrote the entire service without human engineers writing or reviewing a single line of code.