January 25th, 2026

Weβve launched several new specialized APIs and powerful music-editing capabilities to help you build faster, save credits, and unlock advanced creative workflows.
/api/v1/sonic/bpm
Analyze audio tempo and get Average / Max / Min BPM.
Cost: 1 Credit
/api/v1/sonic/vox
Extract deep vocal characteristics from any track.
Supports: vocal_start_s, vocal_end_s
Cost: 1 Credit
/api/v1/sonic/upsample-tags
AI intelligently optimizes & refines music style tags for higher-quality generations.
Cost: 1 Credit
Added 5 new customizable parameters for deeper vocal & style control:
describe
styles
vox_audio_id
vocal_start_s
vocal_end_s
Cost: 1 Credit
/api/v1/sonic/mashup
Create a brand-new song by blending two existing clips into a unique mashup.
Key Highlights
Mix exactly 2 clip IDs into one new song
Supports custom lyrics or AI-generated lyrics
Full control over style, vocals, creativity & instrumentation
Compatible with sonic- and chirp- models**
Modes
Custom Mode (custom_mode: true)
β You provide exact lyrics (full control)
AI Description Mode (custom_mode: false)
β AI generates lyrics from a short description
Cost: 10 Credits
Polling: async task (recommended 15β25s interval)
/api/v1/sonic/replace-section
Replace a specific time-range + lyrics section inside an existing song and regenerate music with proper context awareness.
Perfect for
Fixing verses or choruses
Iterating lyrics without regenerating the full song
Professional editing & refinement workflows
How It Works
Define the time range: infill_start_s β infill_end_s
Provide:
Context lyrics (prompt)
New lyrics fragment (infill_lyrics)
AI regenerates the section with smooth transitions
π₯ Auto Concat (Optional)
Set auto_concat: true
Automatically returns:
replaced β new fragment
full β fully concatenated song
No manual concat calls needed
Cost: 10 Credits
Models: chirp-v4 β chirp-v5
Skip manual steps and simplify complex workflows:
upload-extend β Upload + Extend + Concat
upload-cover β Upload + Cover generation
auto_concat β Automatic audio merging
π° Efficiency
Only 10 Credits total
Save 4 Credits vs separate calls
π Docs
Weβve fully upgraded our documentation with clearer explanations and real-world request examples to ensure smoother integration.
π https://docs.aimusicapi.ai/
Happy Creating! πΉ