Amazon Web Services

Amazon Web Services is the largest public cloud, exposing 200+ services through service-specific REST and AWS-query APIs signed with SigV4. Compute (EC2, Lambda, ECS, EKS), storage (S3, EBS, EFS), database (RDS, DynamoDB, Aurora), networking (VPC, Route 53, CloudFront), and AI/ML (Bedrock, SageMaker) all expose programmatic APIs.