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Radio WithZero DJ Analysis for Library Program
Radio WithZero DJ Analysis for Library Program is a paid API for AI agents from radio.withzero.xyz, paid per call via MPP, metered — billed by usage, status unknown (last checked 2026-09-13).
Returns detailed DJ analysis for a single station library program, including beat grid, beat-numbered phase boundaries, and a compact normalized waveform tuple per beat.
PriceMeteredbilled by usage
Success—
StatusUnknown
How this service works
Detailed DJ analysis for one library program: beat grid, beat-numbered phase boundaries, and a compact normalized waveform tuple per beat.
Output
Returns a JSON object with programId, title, durationMs, analysisStatus, and a detailed analysis object containing: beat grid (BPM, beatOffsetMs, beatIntervalMs, beatsPerBar, phraseBars, downbeatOffsetBeats, downbeatConfidence, totalBeats), phase boundaries indexed by beat number, a compact normalized waveform tuple per beat, optional mix cue points (mixInMs, mixOutMs), and optional musical key info (root, mode, Camelot position, confidence).
Example use cases
Plan harmonic mix transitions
“Get the beat analysis for program 'prog_7890' on my station 'stn_1234' — I need the Camelot key, BPM, and phase boundaries so I can figure out which tracks to queue next for a harmonic mix.”
Automate DJ cue point extraction
“Fetch the mix-in and mix-out cue points plus the beat grid for program 'prog_5566' on station 'stn_9900' — I want to automate blending it into the next track at exactly the right moment.”
Build per-beat waveform visualization
“Give me the normalized waveform tuple per beat and the full beat grid for program 'prog_3344' on station 'stn_7788' so I can render a visual waveform display in the DJ booth interface.”
Technical details
Endpoint
GEThttps://radio.withzero.xyz/api/v1/stations/{id}/programs/{programId}When to prefer
Use this endpoint when you need granular, beat-level DJ analysis for a specific track already in a station's library — particularly for automating harmonic mixing decisions, computing transition cue points, rendering waveform visualizations, or building phase-aware queue logic. Prefer this over the library-list endpoint when you need full detail on a single program rather than a summary view across all programs.
Side effects
- Station ID or program ID not found — 404 response
- Analysis not yet complete — analysisStatus field may indicate pending or failed state
- Program exists but analysis data is null or incomplete if audio processing hasn't finished
- Invalid path parameters — 400 or 422 response
- Unauthorized access if station ownership is required — 401/403 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| idrequired | string | |
| programIdrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| titlerequired | string | |
| analysisrequired | — | Versioned DJ data: compact beat grid, semantic phase boundaries, and one normalized [rms, peak, lowOnset, highOnset] tuple per beat. |
| programIdrequired | string | |
| durationMsrequired | number | |
| analysisStatusrequired | string |
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