# 21Vianet

**Canonical:** https://apis.io/providers/21vianet/  
**Website:** https://www.21vianet.com/  
**APIs profiled:** 0

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.

## Kin Score — 5.7 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.7).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **21Vianet Domain Security** — TLSv1.3 · HSTS

## Tags

Company, Infrastructure, Data-Center, Cloud, Hosting, Colocation, China, Managed Service

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/21vianet/). Scores are computed from the provider's own public artifacts under a published rubric.