AWS ElastiCache Serverless

Amazon ElastiCache Serverless is a zero-ops in-memory cache that scales instantly with your application traffic. No capacity planning, no node management. Think of it like a magical memory box that is always the right size — small when you have few users, huge when traffic spikes, and you only pay for what you use.

ElastiCache Serverless is commonly used for: Serverless application caching; Unpredictable traffic applications; Micro-burst workload handling; Variable workload caching; Development and test environments. It's a core service in the database category of AWS.

Free Tier: 750 hours/month of db.t2.micro (12 months), 20GB storage, 20GB backup. Pay-as-you-go from ~$0.017/hour.

ElastiCache Serverless's most important capabilities include: Instant scaling from zero to millions of ops/sec. Redis and Memcached compatible engines. No capacity management — no nodes to select. Microsecond latency at any scale. Data tiering to SSD for cost efficiency. Each of these is designed to help teams serverless application caching.

ElastiCache Serverless competes with both AWS-native alternatives (Lambda, DynamoDB, RDS) and third-party equivalents. The right choice depends on your specific requirements for scalability, cost, and operational overhead. See the comparisons section below for detailed guidance.

CIS AWS v3.0: ElastiCache Serverless configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults. NIST 800-53: ElastiCache Serverless access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families. PCI DSS 4.0: ElastiCache Serverless encryption, access control, and logging support PCI DSS for cardholder data environments. SOC 2: ElastiCache Serverless security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria. ISO 27001: ElastiCache Serverless configuration and monitoring controls map to ISO 27001 Annex A information security management.