Cloudflare KV

Cloudflare Workers KV is a globally distributed key-value store that allows developers to store and retrieve data at low latency from Cloudflare's edge network. It provides a REST API for reading, writing, deleting, and listing key-value pairs across namespaces, making it ideal for caching, configuration management, session storage, API authorization, and dynamic routing. KV supports eventual consistency across Cloudflare's global network with read latencies under 5ms, and is accessible both via Workers bindings and external REST API calls.

Cloudflare KV publishes 1 API on the APIs.io network: Workers KV Namespace API. Tagged areas include Key-Value Store, Edge Computing, Cloudflare Workers, Distributed Storage, and Global Database.

The Cloudflare KV catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Cloudflare KV’s developer surface includes documentation, getting-started guide, engineering blog, pricing, release notes, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

42.9/100 developing ▬ flat Agent 23/100 agent aware open core · BSD-3-Clause Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs

Key-Value Store Edge ComputingCloudflare WorkersDistributed StorageGlobal DatabaseCache Configuration Management

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 42.9/100 · developing

Contract Quality 11.6 / 20

Developer Ergonomics 3.8 / 16

Access Clarity 6.3 / 16

Operational Transparency 7.1 / 10

Contract Governance 0.9 / 10

Discoverability 5.5 / 8

Open Source Surface 4.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/cloudflare-kv: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Cloudflare KV Workers KV Namespace API

The Workers KV Namespace API from Cloudflare KV — 8 operation(s) for workers kv namespace.

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Cloudflare Workers KV Workers KV Namespace API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Cloudflare Kv Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cloudflare Kv Rate Limits

21 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Cloudflare Kv Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Cloudflare Kv Context

0 classes · 23 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Cloudflare KV API Rules

5 rules · 4 warnings 1 info

SPECTRAL

0 properties

JSON SCHEMA

Scroll for all 27

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Cloudflare Kv Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Cloudflare Kv Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Cloudflare Kv Agentic Access

14 operations · 9 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

OpenAPI

OpenAPI

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 6

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

GitHubOrg

GitHubRepository

SDKTypeScript

SDKPython

SDKGo

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

IssueTracker

StatusPage

ReleaseNotes

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

License

Pricing

Plans

FinOps

Company 4

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

DeveloperBlog

DeveloperBlog

Other 2

Properties that don't map to a standard resource type

Limits

Limits

Source (apis.yml)

aid: cloudflare-kv
name: Cloudflare KV
description: 'Cloudflare Workers KV is a globally distributed key-value store that allows developers to store and retrieve
  data at low latency from Cloudflare''s edge network. It provides a REST API for reading, writing, deleting, and listing
  key-value pairs across namespaces, making it ideal for caching, configuration management, session storage, API authorization,
  and dynamic routing. KV supports eventual consistency across Cloudflare''s global network with read latencies under 5ms,
  and is accessible both via Workers bindings and external REST API calls.

  '
type: Index
deliveryModel:
  model: open-core
  license: BSD-3-Clause
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cloudflare-kv.png
url: https://raw.githubusercontent.com/api-evangelist/cloudflare-kv/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- Key-Value Store
- Edge Computing
- Cloudflare Workers
- Distributed Storage
- Global Database
- Cache
- Configuration Management
apis:
- aid: cloudflare-kv:cloudflare-kv-workers-kv-namespace-api
  name: Cloudflare KV Workers KV Namespace API
  description: The Workers KV Namespace API from Cloudflare KV — 8 operation(s) for workers kv namespace.
  humanURL: https://developers.cloudflare.com/kv/
  baseURL: https://api.cloudflare.com/client/v4
  tags:
  - Workers KV Namespace
  properties:
  - type: OpenAPI
    url: openapi/cloudflare-kv-workers-kv-namespace-api-openapi.yml
  - type: Documentation
    url: https://developers.cloudflare.com/kv/
common:
- type: IssueTracker
  url: https://github.com/cloudflare/api-schemas/issues
- type: CodeOfConduct
  url: https://github.com/cloudflare/.github/blob/master/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/cloudflare/.github/blob/master/CONTRIBUTING.md
- type: License
  name: BSD-3-Clause
  url: https://github.com/cloudflare/api-schemas/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/cloudflare-kv-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/cloudflare-kv-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cloudflare-kv-domain-security.yml
- type: Website
  url: https://www.cloudflare.com/products/kv/
- type: Documentation
  url: https://developers.cloudflare.com/kv/
- type: GettingStarted
  url: https://developers.cloudflare.com/kv/get-started/
- type: GitHubOrg
  url: https://github.com/cloudflare
- type: GitHubRepository
  url: https://github.com/cloudflare/api-schemas
- type: OpenAPI
  url: https://raw.githubusercontent.com/cloudflare/api-schemas/main/openapi.yaml
- type: SDKTypeScript
  url: https://github.com/cloudflare/cloudflare-typescript
- type: SDKPython
  url: https://github.com/cloudflare/cloudflare-python
- type: SDKGo
  url: https://github.com/cloudflare/cloudflare-go
- type: LinkedIn
  url: https://www.linkedin.com/company/cloudflare/
- type: Blog
  url: https://blog.cloudflare.com/
- type: DeveloperBlog
  url: https://blog.cloudflare.com/tag/developers/
- type: Pricing
  url: https://developers.cloudflare.com/kv/platform/pricing/
- type: StatusPage
  url: https://www.cloudflarestatus.com/
- type: X
  url: https://x.com/Cloudflare
- type: ReleaseNotes
  url: https://developers.cloudflare.com/kv/platform/release-notes/
- type: Limits
  url: https://developers.cloudflare.com/kv/platform/limits/
- type: Plans
  url: plans/cloudflare-kv-plans-pricing.yml
- type: RateLimits
  url: rate-limits/cloudflare-kv-rate-limits.yml
- type: FinOps
  url: finops/cloudflare-kv-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/cloudflare-kv"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/cloudflare-kv/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/cloudflare-kv/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.