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Amazon Keyspaces

aws.amazon.com

Free plan WebAPI
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Spec score 8.0 #3 of 22 in Wide-Column Databases

What it is

Amazon Keyspaces is a managed database service compatible with Apache Cassandra. It is serverless, requires no infrastructure management, and scales automatically with application demand. The service supports the Cassandra Query Language API, existing application code, Cassandra drivers, and developer tools. Tables can use on-demand read and write capacity or provisioned capacity with optional auto scaling. AWS describes single-digit-millisecond read and write performance, with no limit on table size or row count. Multi-Region deployments offer up to 99.999% availability, and table data is replicated three times across multiple Availability Zones. Keyspaces integrates with CloudWatch for performance metrics and can stream changes to Amazon OpenSearch Service. Keyspaces Streams provides change data capture, while point-in-time recovery can restore table data to any second in the preceding 35 days. Data is encrypted at rest by default, with AWS-owned or customer-managed keys. The free tier lasts for the first three months after creating the first resource, is limited to one per payer account, and includes 30 million write request units, 30 million read request units, and 1 GB of storage.

Spec sheet

Product
Amazon Keyspaces is a scalable, highly available, managed Apache Cassandra-compatible database service.Read 30 Sep 2026 · aws.amazon.com
Free plan
NoRead 20 Sep 2026 · aws.amazon.com
Integrations
The service integrates with Amazon CloudWatch for performance metrics and supports streaming changes to Amazon OpenSearch Service.Read 30 Sep 2026 · aws.amazon.com
Security
Customer data is encrypted at rest by default, with AWS-owned or customer-managed keys available through AWS Key Management Service.Read 30 Sep 2026 · aws.amazon.com
Availability
Multi-Region deployments offer up to 99.999% availability, and table data is replicated three times across multiple Availability Zones.Read 30 Sep 2026 · aws.amazon.com
Backups
Point-in-time recovery provides continuous backups and can restore table data to any second in the preceding 35 days.Read 30 Sep 2026 · aws.amazon.com
Capacity modes
Tables can use on-demand or provisioned read and write capacity, and provisioned capacity can use auto scaling.Read 30 Sep 2026 · aws.amazon.com
Cassandra compatibility
It supports the Cassandra Query Language API, existing application code, Cassandra drivers, and developer tools.Read 30 Sep 2026 · aws.amazon.com
Change data capture
Keyspaces Streams provides change data capture through its Streams API or the Kinesis Client Library.Read 30 Sep 2026 · aws.amazon.com
Free tier limit
The free tier lasts for the first three months after creating the first Keyspaces resource and is limited to one free tier per payer account.Read 30 Sep 2026 · aws.amazon.com
Latency and scale
Amazon Keyspaces provides single-digit-millisecond read and write performance and tables have no limit on size or row count.Read 30 Sep 2026 · aws.amazon.com
Network and access controls
Amazon Keyspaces integrates with AWS Identity and Access Management and supports TLS and AWS PrivateLink connectivity to Amazon VPC.Read 30 Sep 2026 · aws.amazon.com
Serverless
The service is serverless, requires no infrastructure management, and scales automatically with application demand.Read 30 Sep 2026 · aws.amazon.com
TTL
Managed Time to Live settings expire rows and attributes and delete expired records without requiring users to manage tombstones or compaction.Read 30 Sep 2026 · aws.amazon.com
Use cases
AWS describes use cases including low-latency applications, Cassandra workload migration, IoT device data, game player profiles, and time-series data.Read 30 Sep 2026 · aws.amazon.com

Plans and prices

On-demand capacity Price not published Pay for reads and writes actually performed · Capacity adjusts to application traffic Read 20 Sep 2026 · aws.amazon.com
Provisioned capacity Price not published Specify read and write capacity in advance · Automatic scaling is available Read 20 Sep 2026 · aws.amazon.com
AWS Free Tier Free Available for the first three months; one free tier per payer account 30 million write request units · 30 million read request units · 1 GB storage Read 20 Sep 2026 · aws.amazon.com
Database Savings Plans Price not published Usage commitment over a 1-year term · Up to 18% savings stated by AWS Read 20 Sep 2026 · aws.amazon.com
Amazon Keyspaces — on-demand capacity Priced on request Pay for reads and writes performed, plus storage and other applicable usage; no per-month price stated. 30 million on-demand write request units/month · 30 million on-demand read request units/month · 1 GB storage free for first 3 months Read 30 Sep 2026 · aws.amazon.com
Amazon Keyspaces — provisioned capacity Priced on request Specify expected reads and writes per second; charged for provisioned capacity, storage, and other applicable usage. Capacity can be adjusted with auto scaling · AWS Free Tier: 30 million on-demand write request units/month, 30 million on-demand read request units/month, and 1 GB storage for first 3 months Read 30 Sep 2026 · aws.amazon.com

Every Amazon Keyspaces plan and price →

Strong points and limits

Strong points

  • Supports Cassandra Query Language API and existing application code.
  • Offers on-demand or provisioned capacity.
  • Point-in-time recovery covers the preceding 35 days.
  • Data is encrypted at rest by default.
  • Multi-Region deployments offer up to 99.999% availability.

Limits

  • Free tier lasts only the first three months.
  • Free tier is limited to one per payer account.
  • No monthly price is listed for capacity modes.
  • Maximum row size is 1 MB.

Who it suits

It suits teams migrating Cassandra workloads or building low-latency applications that need managed, automatically scaled database capacity. Its listed use cases also include IoT device data, game player profiles, and time-series data.

Verdict

Keyspaces combines Cassandra compatibility with serverless scaling, multiple capacity modes, and managed recovery and security features. The free tier is time-limited, and the listed capacity options do not state a price.

Where Specifiction places it

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