# Unisound

**Canonical:** https://apis.io/providers/unisound/  
**Website:** https://www.unisound.com  
**APIs profiled:** 3

Unisound (云知声) is a Chinese AGI technology company delivering conversational AI across smart living and smart healthcare. Its Token Hub MaaS platform exposes OpenAI- and Anthropic-compatible APIs for the Unisound U2 agent-native large language model and U2-Med medical model, plus U2-ASR speech transcription, U2-TTS synthesis and voice cloning, voiceprint, and U1-OCR document parsing services, alongside the legacy AI Open Platform WebSocket speech APIs and the Shanhai (UniGPT) LLM WebAPI.

## Kin Score — 48.9 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 48.9).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 69.0 |
| Commercial Clarity | 76.3 |
| Access Clarity | 76.3 |

Regulatory layer — **Health**: 31.3 (matched via tags).

## Agent readiness — 18.4 (agent-aware)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: high).

## APIs (3)

- **Unisound Token Hub API** — Multi-modal MaaS API for Unisound U2 models: OpenAI-compatible chat completions and Anthropic-compatible messages for the U2 and U2-Med LLMs (streaming, function calling, struct...
- **Unisound Shanhai (UniGPT) LLM WebAPI** — REST chat-completions WebAPI for the Shanhai (山海 / UniGPT) large language model on the Unisound AI Open Platform. POST rest/v1.1/chat/completions with signature-based authentica...
- **Unisound AI Open Platform Speech WebAPI** — WebSocket speech APIs on the Unisound AI Open Platform: one-sentence speech recognition (Mandarin, Cantonese, Sichuanese, English; domain models for medical, finance, law, and m...

## Security (2)

- **Unisound Authentication** — apiKey/signature · 3 schemes
- **Unisound Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Unisound Plans**

## Tags

Company, Artificial Intelligence, Speech Recognition, Text-to-Speech, Voice Cloning, Large Language Models, OCR, Healthcare, Machine-Learning, Voice

---

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