# Moore Threads AIBook Speech Recognition API

**Canonical:** https://apis.io/apis/moore-threads/moore-threads-aibook-speech-recognition-api/  
**Provider:** Moore Threads — https://apis.io/providers/moore-threads/  
**Base URL:** https://aibook-api.mthreads.com:62220/api/v1/asr  
**Documentation:** https://docs.mthreads.com/asr/recording-recognition/introduction

Moore Threads AIBook Speech Recognition API is one of 4 APIs that [Moore Threads](https://apis.io/providers/moore-threads/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Speech Recognition, Voice, and Transcription. The published artifact set on APIs.io includes API documentation and an API reference.

Speech-to-text in two shapes. A realtime WebSocket at /api/v1/asr accepts 16 kHz mono audio and returns SentenceBegin / SentenceChanged / SentenceEnd events with optional punctuation, ITN, disfluency removal, speaker diarization, confidence and word-level timing. A recording-file HTTP API on the same base submits a job by URL or chunked upload, then polls for the transcript or receives it on a callback URL; audio up to 512 MB / 5 hours, results retained 72 hours. Bearer token authentication.

## Machine-readable artifacts (2)

- **Documentation** — https://docs.mthreads.com/asr/recording-recognition/introduction
- **APIReference** — https://docs.mthreads.com/asr/realtime-recognition/introduction

## Other Moore Threads APIs (3)

- [Moore Threads AIBook Text-to-Speech API](https://apis.io/apis/moore-threads/moore-threads-aibook-text-to-speech-api/)
- [Moore Threads AIBook Streaming Voice Conversion API](https://apis.io/apis/moore-threads/moore-threads-aibook-streaming-voice-conversion-api/)
- [KUAE Cloud Coding Plan API](https://apis.io/apis/moore-threads/kuae-cloud-coding-plan-api/)

## Tags

Speech Recognition, Voice, Transcription

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