Cloudflare KV
UnclaimedCreate a global, low-latency, key-value data storage for dynamic and performant applications.
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TL;DR - Cloudflare KV
- Global, low-latency key-value data storage.
- Optimized for high read volumes and caching.
- Integrates with Cloudflare Workers and offers a REST API.
Pricing: Free plan available
Best for: Growing teams
Pros & Cons
Pros
- Extremely low latency for reads, especially for hot keys.
- Globally distributed for high availability and performance.
- Cost-effective with a generous free tier.
- Seamless integration with Cloudflare Workers.
- Suitable for caching, configuration, and session data.
Cons
- Eventually consistent, not suitable for applications requiring strong immediate consistency.
- Limited write rate per unique key (1 write RPS).
- Operations via dashboard or CLI count as billable usage.
Key Features
Global data distributionLow-latency data retrievalKey-value storageWorkers Bindings for Cloudflare Workers integrationREST API for external applicationsPer-object time-to-live (TTL)Internal caching for frequently accessed keysWrangler CLI integration
Pricing
Freemium
Cloudflare KV offers a generous free tier with optional paid upgrades for advanced features.
About Cloudflare KV
By Toolradar Team·
Cloudflare Workers KV is a globally distributed, eventually consistent key-value data store designed for high-read volumes and low-latency access. It allows developers to store and retrieve data across Cloudflare's global network, making it ideal for building dynamic APIs and websites that require fast data access from anywhere in the world.
This product is particularly useful for scenarios like caching API responses, storing user configurations and preferences, or managing user authentication details. Its architecture is optimized for frequently read keys, which benefit from an internal cache, leading to typical latencies between 500µs and 10ms for "hot" keys. Developers can interact with Workers KV using Workers Bindings for direct integration with Cloudflare Workers or via a REST API for external applications, with SDKs available for TypeScript, Python, and Go.
Cloudflare Workers KV is part of a suite of Cloudflare storage options, complementing services like R2 for large object storage, Durable Objects for consistent stateful serverless workloads, and D1 for lightweight SQL databases. It's specifically recommended for session data, credentials, and configuration data that are read at high rates and do not require immediate consistency.
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Cloudflare KV FAQ
What is Cloudflare KV?
Cloudflare Workers KV is an eventually consistent key-value data store that caches on the Cloudflare global network. It's designed for storing and retrieving data globally with low latency, especially for high volumes of reads.
How much does Cloudflare KV cost?
Cloudflare KV is included in both Free and Paid Workers plans. The Paid plan offers higher limits for keys read (10 million/month), keys written (1 million/month), keys deleted (1 million/month), list requests (1 million/month), and stored data (1 GB, with additional GBs at $0.50/GB-month). Exceeding these limits incurs additional charges.
Is Cloudflare KV free?
Yes, Cloudflare KV has a free tier included with the Workers Free plan. This free tier includes 100,000 keys read/day, 1,000 keys written/day, 1,000 keys deleted/day, 1,000 list requests/day, and 1 GB of stored data.
Who is Cloudflare KV for?
Cloudflare KV is for developers building dynamic and performant APIs and websites that require global, low-latency access to data. It's ideal for use cases like caching API responses, storing user configurations/preferences, managing user authentication details, and storing session data or credentials.
Source: developers.cloudflare.com