AWS launched a new local emulator service for its cloud services on Wednesday to help enterprises accelerate application development and testing. The service, named AWS Emulator, will allow…
AWS launched a new local emulator service for its cloud services on Wednesday to help enterprises accelerate application development and testing. The service, named AWS Emulator, will allow developers and AI coding agents to build, deploy, and test AWS-dependent applications on their machines without provisioning actual cloud infrastructure and paying for it, thereby potentially reducing development time and associated costs, the hyperscaler said in a statement.
To achieve this, AWS Emulator replicates the APIs of AWS services locally and exposes a local HTTP endpoint that the AWS Command Line Interface (CLI), software development kits (SDKs), and coding agents can access using the same APIs they use to interact with the cloud, it added. Developers can redirect these tools to the local endpoint by setting the AWS_ENDPOINT_URL environment variable, allowing existing application code and tests to run against simulated AWS services without modification, it further said.
Local testing to speed up development The new service addresses a growing problem for developers in software development: the need to test increasingly complex cloud applications quickly and repeatedly without the cost and operational overhead of deploying them to the cloud, said Ashish Chaturvedi, executive research leader at HFS Research.
“Developers can test multi-service workflows involving S3, Lambda, DynamoDB, and API Gateway without provisioning anything, and they avoid both the AWS charges and the clutter of half-finished resources that experiments tend to leave behind in shared accounts,” Chaturvedi said. “I am sure there would be clients that found a forgotten test bucket or idle instance on a cloud bill months later. Such clients will appreciate an environment that vanishes when the work is done,” Chaturvedi added.
The bigger advantage of the service, however, will be for developers using AI coding agents, according to Advait Patel, senior site reliability engineer (SRE) at Broadcom. “Agents work in loops: write code, run it, see the error, fix it, repeat. When every loop hits real AWS, you wait on provisioning, you pay for resources, and you clean up whatever the agent forgot to delete. Moving that loop to a laptop cuts each cycle from minutes to seconds,” Patel said.
This is a source-linked briefing. Read the original report from Info World .