MongoDB has launched its free tier on Google Cloud Platform (GCP) as part of its Atlas database service, providing access to a fully managed M0 cluster with 512 MB of storage at no cost. The Atlas free tier is now available in three regions: Iowa, Belgium, and Singapore, and offers developers a simple way to experiment with MongoDB without any barrier to entry. This move aims to make it easier for developers using the cloud platform to learn MongoDB, prototype, or develop early applications, while also providing a secure and managed environment for their infrastructure.