Language Detection - Modulate

Language detection identifies the spoken language of an audio file and returns a confidence-scored result. It is a pure classification endpoint — no transcription, diarization, or enrichment data is produced.

	Batch
Use case	Identify the spoken language of an audio file
Protocol	HTTP POST
Languages	100 spoken languages
Max file size	100 MB
Audio analyzed	First 30 seconds only
Output	ISO 639-1 code, display name, confidence score

For a side-by-side comparison with the other Modulate capabilities, see Which API should I use?.

Authentication

Uses the X-API-Key header. See Authentication and rate limits.