- Home
- AI Voice Isolators
- Sencial API
Sencial API
What it is
Sencial API provides REST endpoints for audio processing in applications and services. The API can split audio into two, four, or six stems with lossless export, classify acoustic environments in real time, and isolate or suppress selected sound sources. Its voice-isolation endpoint enhances voices and reduces background noise. Speaker tools separate and label multiple speakers, while voice embeddings return 512-dimensional vectors for matching and clustering. WebSocket endpoints support low-latency streaming, and the Jobs API handles asynchronous work through polling or webhook notifications. Developers can consult API documentation, a quick-start guide, and examples in Python, JavaScript, and cURL. The free tier includes 10 minutes of processing each month, all endpoints, and 128 kbps MP3 output without a credit card. The Developer plan costs $49 a month and includes 300 minutes, WebSocket processing, WAV or FLAC output, priority support, an SLA, and $0.20 a minute for overages. Enterprise pricing is custom.
For and against
For
- Separates audio into two, four, or six stems
- Provides scene detection and sound isolation endpoints
- Supports speaker labeling and 512-dimensional voice embeddings
- Offers WebSocket streaming and webhook job notifications
- Free tier includes 10 processing minutes monthly
Against
- Developer beta access requires approval
- Free tier is limited to 10 minutes monthly
- Developer overages cost $0.20 a minute
The verdict
Sencial API covers separation, detection, isolation, speaker analysis, and voice matching through documented REST endpoints. Its free tier supports experimentation, while the $49 monthly Developer plan adds more processing and streaming features.
Who it suits
It suits developers building hearing apps, music tools, meeting assistants, or scene-understanding software. The API is intended for services that need upload processing, streaming, or asynchronous audio jobs.
Plans and prices
Starter
10 minutes of audio processing/month · All API endpoints · 128 kbps MP3 output · Email support
Read 7 Oct 2026 · sencial.com
Developer
300 minutes/month included · WebSocket real-time processing · WAV/FLAC lossless output · Priority support & SLA
Read 7 Oct 2026 · sencial.com
Enterprise
Volume discounts available · On-premise deployment options · Custom model training · Dedicated support team
Read 7 Oct 2026 · sencial.com
On the record
- Async jobs
- The Jobs API lets clients poll asynchronous tasks or receive webhook notifications.sencial.com · read 7 Oct 2026
- Beta access
- Developer beta access is subject to approval, with a stated response time of 2–3 business days.sencial.com · read 7 Oct 2026
- Developer resources
- The page offers API documentation, a quick-start guide, and Python, JavaScript, and cURL code examples.sencial.com · read 7 Oct 2026
- Free tier terms
- The free tier includes 10 minutes of processing per month and requires no credit card.sencial.com · read 7 Oct 2026
- Purpose
- Sencial API provides REST endpoints for sound separation, scene detection, sound and voice isolation, multi-speaker diarization, and voice embeddings.sencial.com · read 7 Oct 2026
- Scene detection
- The /v1/scene-detect endpoint classifies acoustic environments in real time.sencial.com · read 7 Oct 2026
- Security
- API requests use a bearer API key in the Authorization header, as shown in the page's cURL example.sencial.com · read 7 Oct 2026
- Sound isolation
- The /v1/isolate endpoint focuses or suppresses specific sound sources.sencial.com · read 7 Oct 2026
- Speaker tools
- The /v1/diarize endpoint separates and labels multiple speakers, while /v1/voice-embed returns 512-D vectors for voice matching and clustering.sencial.com · read 7 Oct 2026
- Stem separation
- The /v1/separate endpoint splits audio into 2, 4, or 6 stems with lossless export.sencial.com · read 7 Oct 2026
- Streaming
- The /v1/rt endpoint offers WebSocket endpoints for low-latency streaming.sencial.com · read 7 Oct 2026
- Use cases
- The page describes hearing apps, music tools, meeting assistants, and scene-understanding applications as things developers can build.sencial.com · read 7 Oct 2026
- Voice processing
- The /v1/voice-isolate endpoint enhances voices and reduces background noise.sencial.com · read 7 Oct 2026
