List all clusters in the specified Atlas project. Returns cluster names, types (REPLICASET, SHARDED, GEOSHARDED), MongoDB versions, cloud providers, regions, and current states. Essential for discovering available database deployments and their configurations.

Get detailed information about a specific cluster including connection strings, server versions, backup configuration, cluster tier, replica set members, shard configuration, and current state. Use this to check cluster status and connection details.

Create a new cluster in the Atlas project. Specify cluster tier (M0, M2, M5, M10+), cloud provider (AWS, AZURE, GCP), region, MongoDB version, and configuration options. Returns cluster details including connection strings once provisioning completes.

Modify an existing cluster's configuration including cluster tier, disk size, backup settings, and MongoDB version. Changes may require cluster restart. Use this to scale clusters or update settings.

Permanently delete a cluster and all its data. This operation is irreversible. Make sure you have backups before deleting. The cluster will be terminated and all data will be lost.

Pause a cluster to stop compute charges. The cluster data is preserved but the cluster cannot serve requests while paused. Use this to save costs during non-usage periods. Can be resumed later.

Resume a paused cluster to make it available for serving requests. The cluster will start accepting connections once the resume operation completes. May take a few minutes to fully resume.

Test cluster failover by triggering a primary election. This simulates a real-world failure scenario to verify high availability and replication. The cluster will experience brief downtime during the test.

List all database users in the Atlas project. Returns usernames, authentication methods, roles, and database access permissions. Essential for managing database access and security.

Get detailed information about a specific database user including roles, authentication database, scopes, and custom data. Use this to verify user permissions and configuration.