# Yunpian

**Canonical:** https://apis.io/providers/yunpian/  
**Website:** https://www.yunpian.com/  
**APIs profiled:** 1

Yunpian (杭州云片网络科技有限公司) provides cloud communication services, offering SMS, voice, and WhatsApp messaging APIs for developers worldwide. Their platform supports domestic and international SMS, super SMS with multimedia, 5G smart messaging, and enterprise solutions like YCloud. They emphasize security with certifications such as ISO27001 and CMMI3, and provide extensive SDKs, documentation, and support for rapid integration.

## Kin Score — 12.3 / 100 (emerging)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 53.6 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 19.0 |
| Access Clarity | 23.7 |

Regulatory layer — **Telecommunications**: 5.0 (matched via tags).

## Agent readiness — 3.1 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |

## APIs (1)

- **Yunpian SMS API** — SMS, voice and messaging API documented at the developer docs.

## Security (1)

- **Yunpian Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, SMS, Cloud Communications, API Platform, China

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