# Unisound Token Hub API

**Canonical:** https://apis.io/apis/unisound/unisound-token-hub-api/  
**Provider:** Unisound — https://apis.io/providers/unisound/  
**Base URL:** https://maas-api.unisound.com/v1  
**Documentation:** https://maas.unisound.com/docs/api/overview

Unisound Token Hub API is one of 3 APIs that [Unisound](https://apis.io/providers/unisound/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include LLM, Speech Recognition, Text-to-Speech, Voice Cloning, and OCR. The published artifact set on APIs.io includes API documentation and an API reference.

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, structured output, context caching, prefix continuation), WebSocket one-shot and real-time speech recognition, asynchronous long-audio transcription and long-text speech synthesis via task polling, voiceprint registration and lookup, voice cloning and timbre management, asynchronous document parsing and information extraction (U1-OCR), and file management. Authenticated with Bearer API keys.

## Machine-readable artifacts (3)

- **Documentation** — https://maas.unisound.com/docs
- **APIReference** — https://maas.unisound.com/docs/api/overview
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/unisound/refs/heads/main/apis.yml

## Other Unisound APIs (2)

- [Unisound Shanhai (UniGPT) LLM WebAPI](https://apis.io/apis/unisound/unisound-shanhai-unigpt-llm-webapi/)
- [Unisound AI Open Platform Speech WebAPI](https://apis.io/apis/unisound/unisound-ai-open-platform-speech-webapi/)

## Tags

LLM, Speech Recognition, Text-to-Speech, Voice Cloning, OCR

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/unisound/unisound-token-hub-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/unisound/.