UCloud

UCloud (优刻得, UCloud Technology Co., Ltd.) is a neutral Chinese cloud computing provider listed on the SSE STAR Market (688158), offering compute (UHost, bare-metal, GPU), object storage (UFile/US3), networking (VPC, ULB, EIP), Kubernetes (UK8S), databases, CDN, monitoring and AI infrastructure across China and 20+ global regions. Everything is managed through one Action-based Open API at api.ucloud.cn with signed requests, first-party SDKs in five languages, a CLI with an official published agent skill, and a Terraform provider. UCloud also runs an international arm at ucloud-global.com.

UCloud publishes 1 API on the APIs.io network. Tagged areas include Company, Enterprise, Cloud Computing, Infrastructure-as-a-Service, and GPU.

The UCloud catalog on APIs.io includes 1 event-driven AsyncAPI specification.

UCloud’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.1/100 thin ▬ flat Agent 29/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Enterprise Cloud Computing Infrastructure-as-a-Service GPU Kubernetes Object Storage CDN China

Kin Score

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

Composite quality — 35.1/100 · thin

Contract Quality 10.4 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 6.3 / 20

Operational Transparency 4.8 / 13

Contract Governance 0.5 / 12

Discoverability 6.9 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/ucloud: 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.

UCloud Open API

Action-based RPC API covering every UCloud product (compute, networking, storage, databases, Kubernetes, monitoring, AI) through a single signed gateway. Requests carry an Actio...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Ucloud Webhooks

ASYNCAPI

Security Posture 3

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

Ucloud Authentication

signature · 2 schemes

SECURITY

Ucloud Domain Security

TLSv1.3 · DMARC

SECURITY

Ucloud Vulnerability Disclosure

Hackerone

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Webhooks

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

CLI

Packages

SDKs

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: ucloud
name: UCloud
description: UCloud (优刻得, UCloud Technology Co., Ltd.) is a neutral Chinese cloud computing provider listed on the SSE STAR
  Market (688158), offering compute (UHost, bare-metal, GPU), object storage (UFile/US3), networking (VPC, ULB, EIP), Kubernetes
  (UK8S), databases, CDN, monitoring and AI infrastructure across China and 20+ global regions. Everything is managed through
  one Action-based Open API at api.ucloud.cn with signed requests, first-party SDKs in five languages, a CLI with an official
  published agent skill, and a Terraform provider. UCloud also runs an international arm at ucloud-global.com.
url: https://raw.githubusercontent.com/api-evangelist/ucloud/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- dcm-ventures
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://avatars.githubusercontent.com/u/14289247?v=4
tags:
- Company
- Enterprise
- Cloud Computing
- Infrastructure-as-a-Service
- GPU
- Kubernetes
- Object Storage
- CDN
- China
tags_raw:
- Company
- Enterprise
- Cloud Computing
- IaaS
- GPU
- Kubernetes
- Object Storage
- CDN
- China
apis:
- name: UCloud Open API
  description: Action-based RPC API covering every UCloud product (compute, networking, storage, databases, Kubernetes, monitoring,
    AI) through a single signed gateway. Requests carry an Action name plus PublicKey/Signature authentication; responses
    share a RetCode/Action/Message envelope.
  humanURL: https://docs.ucloud.cn/api
  baseURL: https://api.ucloud.cn
  tags:
  - Cloud
  - Compute
  - Storage
  - Networking
  - Databases
  properties:
  - type: Documentation
    url: https://docs.ucloud.cn/api
  - type: GettingStarted
    url: https://docs.ucloud.cn/api/summary/public
  - type: Authentication
    url: https://docs.ucloud.cn/api/summary/signature
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/ucloud-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/ucloud-vulnerability-disclosure.yml
- type: Security
  url: https://src.ucloud.cn/
- type: Website
  url: https://www.ucloud.cn/
- type: DeveloperPortal
  url: https://console.ucloud.cn/
- type: Documentation
  url: https://docs.ucloud.cn/
- type: APIReference
  url: https://docs.ucloud.cn/api
- type: GettingStarted
  url: https://docs.ucloud.cn/api/summary/public
- type: Support
  url: https://spt.ucloud.cn/
- type: Blog
  url: https://www.ucloud-global.com/en/blog
- type: GitHubOrganization
  url: https://github.com/ucloud
- type: Pricing
  url: https://www.ucloud-global.com/en/price
- type: SignUp
  url: https://passport.ucloud.cn/
- type: TermsOfService
  url: https://www.ucloud-global.com/en/docs/agreement/ServicesAgreement
- type: PrivacyPolicy
  url: https://www.ucloud-global.com/en/docs/agreement/PrivacyPolicy
- type: CLI
  url: cli/ucloud-cli.yml
- type: Packages
  url: packages/ucloud-packages.yml
- type: SDKs
  url: packages/ucloud-packages.yml
- type: LLMsTxt
  url: llms/ucloud-llms.txt
- type: Conformance
  url: conformance/ucloud-conformance.yml
- type: ErrorCatalog
  url: errors/ucloud-error-codes.yml
- type: Lifecycle
  url: lifecycle/ucloud-lifecycle.yml
- type: Authentication
  url: authentication/ucloud-authentication.yml
- type: Sandbox
  url: sandbox/ucloud-sandbox.yml
- type: Conventions
  url: conventions/ucloud-conventions.yml
- type: ChangeLog
  url: changelog/ucloud-changelog.yml
- type: Webhooks
  url: asyncapi/ucloud-webhooks.yml
- type: AgentSkill
  url: skills/ucloud-cli-SKILL.md
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1

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