21Vianet

21Vianet (VNET Group, Inc.) is the largest carrier-neutral internet and data center services provider in China, operating more than 50 data centers across over 20 cities with tens of thousands of cabinets and multi-terabit network port capacity. The company delivers hosting, managed hosting, interconnectivity, cloud, and hybrid IT infrastructure services to enterprise customers, and is the exclusive operator of Microsoft Azure, Microsoft 365, Dynamics 365, and Power Platform in mainland China through its Blue Cloud subsidiary. 21Vianet trades on Nasdaq under the ticker VNET. This profile was added to the API Evangelist network as a portfolio lead; 21Vianet does not publish a public first-party developer API program, so most API artifacts are legitimately not applicable.

21Vianet is profiled on the APIs.io network. Tagged areas include Company, Infrastructure, Data Center, Cloud, and Hosting.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyInfrastructureData CenterCloudHostingColocationChinaManaged Services

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 4/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/21vianet: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

21Vianet Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 4

The organization behind the API

Website
Website
 Website
Website
 InvestorRelations
InvestorRelations
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: 21vianet
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/21vianet.png
name: 21Vianet
description: 21Vianet (VNET Group, Inc.) is the largest carrier-neutral internet and data center services provider in China,
  operating more than 50 data centers across over 20 cities with tens of thousands of cabinets and multi-terabit network port
  capacity. The company delivers hosting, managed hosting, interconnectivity, cloud, and hybrid IT infrastructure services
  to enterprise customers, and is the exclusive operator of Microsoft Azure, Microsoft 365, Dynamics 365, and Power Platform
  in mainland China through its Blue Cloud subsidiary. 21Vianet trades on Nasdaq under the ticker VNET. This profile was added
  to the API Evangelist network as a portfolio lead; 21Vianet does not publish a public first-party developer API program,
  so most API artifacts are legitimately not applicable.
url: https://raw.githubusercontent.com/api-evangelist/21vianet/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Infrastructure
- Data Center
- Cloud
- Hosting
- Colocation
- China
- Managed Services
apis: []
common:
- type: DomainSecurity
  url: security/21vianet-domain-security.yml
- type: LLMsTxt
  url: llms/21vianet-llms.txt
- type: WellKnown
  url: well-known/21vianet-well-known.yml
- type: Website
  url: https://www.21vianet.com/
- type: Website
  url: https://www.vnet.com/en/
- type: InvestorRelations
  url: https://ir.vnet.com/
- type: LinkedIn
  url: https://cn.linkedin.com/company/21vianet-group-limited
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence