AI Stem Splitter API review
A developer-focused API for six-stem separation with flexible job handling and SDK support.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
AI Stem Splitter API separates uploaded or remotely hosted audio into vocals, drums, bass, guitar, piano, and other stems. It is aimed at developers adding stem separation to applications, workflow automations, and other software products. The service supports both direct URL input and presigned uploads, while a browser-based product provides direct audio uploads and downloads. Results are available in WAV, MP3, and FLAC, giving teams several output choices for downstream workflows.
Pricing uses credit packs rather than a recurring subscription. The Free trial requires no credit card, and its free minutes do not expire. The 50 minutes plan costs $6.99 per 50 minutes, the 150 minutes plan costs $15 per 150 minutes, and the 500 minutes plan costs $39.99 per 500 minutes. Paid packs are pay-as-you-go, and minutes do not expire. For automated processing, the REST API creates split jobs, polling endpoints report job status, and HMAC-signed webhooks can notify applications when jobs are complete. Bearer-token API-key authentication and Idempotency-Key support address common API workflow needs.
The product’s main strength is its integration surface: first-party SDKs cover Node.js, Python, Java, Go, PHP, Swift, and Lua, with additional workflow connections through n8n, GitHub Actions, Docker/CLI, and Pipedream. That combination suits teams building repeatable six-stem processing into software or automation pipelines. It is less suited to buyers seeking a conventional standalone desktop tool, a subscription plan, or a broader audio-production suite. Choose it when programmable access, six-stem output, and workflow integration matter most; choose an alternative when direct, non-API use is the primary requirement.
AI Stem Splitter API pros and cons
- Where it wins
- Separates vocals, drums, bass, guitar, piano, and other
- Supports REST jobs, polling, signed webhooks, and idempotency
- Offers first-party SDKs for seven programming languages
- Where it doesn't
- No free plan beyond the available free trial
- Designed primarily for API-based integrations
- Six-stem separation is an optional model
AI Stem Splitter API fact sheet, pricing and score →
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