Cloudflare Queues

Cloudflare Queues is a flexible, scalable message queue service built into the Cloudflare Workers ecosystem. It provides guaranteed message delivery with a REST API for creating and managing queues, sending individual or batched messages, configuring push-based Worker consumers and HTTP pull consumers, managing dead letter queues, and monitoring queue metrics. Queues supports delivery delays, message retention up to 14 days, throughput up to 5,000 messages per second per queue, and event subscriptions for reactive workflows.

Cloudflare Queues publishes 4 API contracts indexed on the APIs.io network, including Consumer API, Messages API, Metrics API, and 1 more. Tagged areas include Messaging, Message Queue, Serverless, Workers, and Cloudflare.

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

Cloudflare Queues’ developer surface includes authentication, documentation, getting-started guide, API reference, engineering blog, pricing, changelog, and 20 more developer resources.

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53.0/100 developing ▬ flat Agent 28/100 agent aware open core · Apache-2.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Messaging Message Queue Serverless Workers Cloudflare Async Dead Letter Queue Event-Driven

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 53.0/100 · developing

Contract Quality 9.4 / 16

Developer Ergonomics 5.7 / 13

Access Clarity 5.1 / 13

Operational Transparency 4.7 / 8

Contract Governance 0.8 / 8

Discoverability 4.3 / 7

Regulatory Posture 3.4 / 15

Open Source Surface 10.0 / 10

Create-or-Update Ergonomics 1.1 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 39.5 — up to +12.1 composite points
Developer Ergonomics scores 44.0 — up to +11.2 composite points
Contract Governance scores 9.8 — up to +10.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/cloudflare-queues/apis.yml: open an issue on github.com/api-evangelist/cloudflare-queues to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

Cloudflare Queues Consumer API

Operations for managing queue consumers (Worker push or HTTP pull)

Cloudflare Queues Messages API

Operations for sending, receiving, and acknowledging messages

Cloudflare Queues Metrics API

Operations for retrieving queue metrics

Cloudflare Queues Queue API

Operations for managing Cloudflare Queues and their configuration

Postman Collections 4

Ready-to-run Postman collections for exercising this provider's APIs.

Cloudflare Queues Consumer API

POSTMAN

Cloudflare Queues Consumer Messages API

POSTMAN

Cloudflare Queues Consumer Metrics API

POSTMAN

Cloudflare Queues Consumer Queue API

POSTMAN

Open Collections 4

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

Cloudflare Queues Consumer API

OPEN COLLECTION

Cloudflare Queues Consumer Messages API

OPEN COLLECTION

Cloudflare Queues Consumer Metrics API

OPEN COLLECTION

Cloudflare Queues Consumer Queue API

OPEN COLLECTION

Cloudflare Queues API pricing

Prices published by Cloudflare Queues, read 2026-10-28 from developers.cloudflare.com/queues/platform/pricing/.

Plan	Price
Workers Free	10,000 operations/day included Includes: 10,000 operations/day included; message retention 24 hours (non-configurable)
Workers Paid	1,000,000 operations/month included + $0.40/million operations Includes: 1,000,000 operations/month; 4 days default retention, configurable up to 14 days

Plan details, limits and sources →

Billed by: operations · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Cloudflare Queues Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cloudflare Queues Rate Limits

20 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Cloudflare Queues

SLA

FinOps 1

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

Cloudflare Queues Finops

FINOPS

Semantic Vocabularies 1

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

Cloudflare Queues Context

4 classes · 50 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Cloudflare Queues — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

Cloudflare Queue Consumer

0 properties

JSON SCHEMA

Cloudflare Queue Message

1 properties

JSON SCHEMA

Cloudflare Queue

9 properties

JSON SCHEMA

Examples 4

Example request and response payloads for these APIs.

Cloudflare Queues Create Consumer

3 fields

EXAMPLE

Cloudflare Queues Create Queue

4 fields

EXAMPLE

Cloudflare Queues Pull Messages

4 fields

EXAMPLE

Cloudflare Queues Push Message

4 fields

EXAMPLE

Security Posture 3

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

Cloudflare Queues Authentication

apiKey/http · 3 schemes

SECURITY

Cloudflare Queues Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Cloudflare Queues Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

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

Cloudflare Queues Agentic Access

20 operations · 14 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 4

Reference material describing how the API behaves

ContributionGuide

Documentation

APIReference

OpenAPI

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 4

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

PostmanWorkspace

GitHubOrg

GitHubRepo

Access & Security 4

Authentication, authorization, and security posture

SecurityPolicy

SecurityPolicy

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

IssueTracker

Releases

StatusPage

ChangeLog

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

License

Pricing

Plans

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: cloudflare-queues
name: Cloudflare Queues
description: Cloudflare Queues is a flexible, scalable message queue service built into the Cloudflare Workers ecosystem.
  It provides guaranteed message delivery with a REST API for creating and managing queues, sending individual or batched
  messages, configuring push-based Worker consumers and HTTP pull consumers, managing dead letter queues, and monitoring queue
  metrics. Queues supports delivery delays, message retention up to 14 days, throughput up to 5,000 messages per second per
  queue, and event subscriptions for reactive workflows.
type: Index
deliveryModel:
  model: open-core
  license: Apache-2.0
  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: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cloudflare-queues.png
url: https://raw.githubusercontent.com/api-evangelist/cloudflare-queues/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Messaging
- Message Queue
- Serverless
- Workers
- Cloudflare
- Async
- Dead Letter Queue
- Event-Driven
tags_raw:
- Messaging
- Message Queue
- Serverless
- Workers
- Cloudflare
- Async
- Dead Letter Queue
- Event Driven
apis:
- aid: cloudflare-queues:cloudflare-queues-consumer-api
  name: Cloudflare Queues Consumer API
  description: Operations for managing queue consumers (Worker push or HTTP pull)
  humanURL: https://developers.cloudflare.com/api/resources/queues/
  baseURL: https://api.cloudflare.com/client/v4
  tags:
  - Consumer
  properties:
  - type: OpenAPI
    url: openapi/cloudflare-queues-consumer-api-openapi.yml
  - type: Documentation
    url: https://developers.cloudflare.com/queues/
- aid: cloudflare-queues:cloudflare-queues-messages-api
  name: Cloudflare Queues Messages API
  description: Operations for sending, receiving, and acknowledging messages
  humanURL: https://developers.cloudflare.com/api/resources/queues/
  baseURL: https://api.cloudflare.com/client/v4
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/cloudflare-queues-messages-api-openapi.yml
  - type: Documentation
    url: https://developers.cloudflare.com/queues/
- aid: cloudflare-queues:cloudflare-queues-metrics-api
  name: Cloudflare Queues Metrics API
  description: Operations for retrieving queue metrics
  humanURL: https://developers.cloudflare.com/api/resources/queues/
  baseURL: https://api.cloudflare.com/client/v4
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/cloudflare-queues-metrics-api-openapi.yml
  - type: Documentation
    url: https://developers.cloudflare.com/queues/
- aid: cloudflare-queues:cloudflare-queues-queue-api
  name: Cloudflare Queues Queue API
  description: Operations for managing Cloudflare Queues and their configuration
  humanURL: https://developers.cloudflare.com/api/resources/queues/
  baseURL: https://api.cloudflare.com/client/v4
  tags:
  - Queues
  tags_raw:
  - Queue
  properties:
  - type: OpenAPI
    url: openapi/cloudflare-queues-queue-api-openapi.yml
  - type: Documentation
    url: https://developers.cloudflare.com/queues/
common:
- type: IssueTracker
  url: https://github.com/cloudflare/workers-sdk/issues
- type: Releases
  url: https://github.com/cloudflare/workers-sdk/releases
- type: SecurityPolicy
  url: https://github.com/cloudflare/workers-sdk/blob/main/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/cloudflare/workers-sdk/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/cloudflare/workers-sdk/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/cloudflare/workers-sdk/blob/main/LICENSE
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/cloudflare-queues/overview
- type: AgenticAccess
  url: agentic-access/cloudflare-queues-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/cloudflare-queues-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cloudflare-queues-domain-security.yml
- type: Authentication
  url: authentication/cloudflare-queues-authentication.yml
- type: Website
  url: https://www.cloudflare.com/developer-platform/queues/
- type: Documentation
  url: https://developers.cloudflare.com/queues/
- type: GettingStarted
  url: https://developers.cloudflare.com/queues/get-started/
- type: APIReference
  url: https://developers.cloudflare.com/api/resources/queues/
- type: GitHubOrg
  url: https://github.com/cloudflare
- type: GitHubRepo
  url: https://github.com/cloudflare/workers-sdk
- type: OpenAPI
  url: https://raw.githubusercontent.com/cloudflare/api-schemas/main/openapi.yaml
- type: LinkedIn
  url: https://www.linkedin.com/company/cloudflare
- type: Blog
  url: https://blog.cloudflare.com/tag/cloudflare-queues/
- type: Pricing
  url: https://developers.cloudflare.com/queues/platform/pricing/
- type: StatusPage
  url: https://www.cloudflarestatus.com/
- type: X
  url: https://x.com/Cloudflare
- type: ChangeLog
  url: https://developers.cloudflare.com/changelog/product/queues/
- type: Plans
  url: plans/cloudflare-queues-plans-pricing.yml
- type: RateLimits
  url: rate-limits/cloudflare-queues-rate-limits.yml
- type: FinOps
  url: finops/cloudflare-queues-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Cloudflare Queues API — frequently asked questions

Does Cloudflare Queues have an API?

Yes. APIs.io lists 4 APIs from Cloudflare Queues, including Cloudflare Queues Consumer API, Cloudflare Queues Messages API and Cloudflare Queues Metrics API, and 1 more.

Is there an OpenAPI specification for the Cloudflare Queues API?

Yes. APIs.io indexes 4 OpenAPI specifications for Cloudflare Queues, each linked for download from this page.

How do I authenticate with the Cloudflare Queues API?

Cloudflare Queues uses bearer-token authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Cloudflare Queues Authentication.

How much does the Cloudflare Queues API cost?

Cloudflare Queues publishes its prices; its Workers Free plan is 10,000 operations/day included as of 2026-10-28. APIs.io lists 2 pricing plans for Cloudflare Queues, with each plan's price, limits and inclusions under Pricing on this page.

Is the Cloudflare Queues API ready for AI agents?

Cloudflare Queues has a Kin Score of 53.0 out of 100 (developing) and an Agent Readiness score of 27.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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