Search the analyzed track corpus by genre with pagination, filter on audio-feature ranges (tempo, energy, danceability, valence, instrumentalness, acousticness, popularity, key, mode), list the available genres, and read corpus-wide analysis statistics such as the total number of tracks analyzed.
openapi: 3.1.0
info:
title: SoundStat API
description: API for accessing music track audio analysis, features (tempo, key, mode, energy, danceability,
valence, instrumentalness, acousticness, loudness), search, and recommendations. SoundStat is an independent
audio-analysis alternative to the deprecated Spotify audio-features endpoints.
version: 1.0.0
paths:
/api/v1/track/{track_id}:
get:
summary: Get Track Analysis
description: "Get detailed audio analysis for a specific track.\n\nParameters:\n----------\n<b>track_id</b>\
\ : str (Spotify track ID)<br>\n<b>x_api_key</b> : str (API key for authentication)<br>\n\nReturns:\n\
-------\nTrackAnalysis<br>\n Basic track info (name, artists, genre)<br>\n Track duration\
\ in milliseconds<br>\n Audio features (tempo, key, mode, energy etc.)<br>\n\n\nNotes:\n-----\n\
If track hasn't been analyzed, initiates analysis and returns processing status."
operationId: get_track_analysis_api_v1_track__track_id__get
parameters:
- name: track_id
in: path
required: true
schema:
type: string
title: Track Id
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackAnalysis'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/track/{track_id}/status:
get:
summary: Track Status Updates
description: "Get real-time status updates for track analysis via Server-Sent Events (SSE).\n\n\
Parameters:\n----------\n<b>track_id</b> : str (Spotify track ID)<br>\n<b>x_api_key</b> : str\
\ (API key for authentication)<br>\n\nReturns:\n-------\nEventSourceResponse<br>\n Status updates\
\ as SSE events<br>\n Event types: status, complete, error<br>\n\nNotes:\n-----\nMaintains\
\ an active connection until analysis is complete or fails."
operationId: track_status_updates_api_v1_track__track_id__status_get
parameters:
- name: track_id
in: path
required: true
schema:
type: string
title: Track Id
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
responses:
'200':
description: Successful Response
content:
application/json:
schema: {}
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/tracks/search:
post:
summary: Search Tracks
description: "Search for analyzed tracks with filtering options.\n\nParameters:\n----------\n<b>x_api_key</b>\
\ : str (API key for authentication)<br>\n<b>genre</b> : str, optional (Filter by specific genre)<br>\n\
<b>limit</b> : int, default=50 (Maximum number of results, max 100)<br>\n<b>offset</b> : int,\
\ default=0 (Number of results to skip)<br>\n<b>filters</b> : AnalysisFilters, optional (Audio\
\ feature filters)<br>\n\nReturns:\n-------\nTrackIDList<br>\n List of matching track IDs<br>\n\
\nNotes:\n-----\nSupports pagination and complex audio feature filtering."
operationId: search_tracks_api_v1_tracks_search_post
parameters:
- name: genre
in: query
required: false
schema:
anyOf:
- type: string
- type: 'null'
title: Genre
- name: limit
in: query
required: false
schema:
type: integer
maximum: 100
default: 50
title: Limit
- name: offset
in: query
required: false
schema:
type: integer
minimum: 0
default: 0
title: Offset
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
content:
application/json:
schema:
anyOf:
- $ref: '#/components/schemas/AnalysisFilters'
- type: 'null'
title: Filters
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/genres:
get:
summary: Get Available Genres
description: "Get list of all available genres in the database.\n\nParameters:\n----------\n<b>x_api_key</b>\
\ : str (API key for authentication)<br>\n\nReturns:\n-------\nDict<br>\n genres: List[str]\
\ (List of unique genre names)<br>\n\nNotes:\n-----\nOnly returns genres that have at least one\
\ analyzed track."
operationId: get_available_genres_api_v1_genres_get
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
responses:
'200':
description: Successful Response
content:
application/json:
schema: {}
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/similar:
get:
summary: Get Similar Tracks
description: "Get track recommendations based on a seed track.\n\nParameters:\n----------\n<b>seed_track_id</b>\
\ : str (Spotify ID of the reference track)<br>\n<b>limit</b> : int, default=20 (Number of recommendations,\
\ max 100)<br>\n<b>min_popularity</b> : int, optional (Minimum popularity score 0-100)<br>\n<b>genre_match</b>\
\ : bool, default=False (Prioritize same genre)<br>\n<b>x_api_key</b> : str (API key for authentication)<br>\n\
\nReturns:\n-------\nTrackIDList<br>\n List of recommended track IDs<br>\n\nNotes:\n-----\n\
Uses audio features to find tracks with similar characteristics."
operationId: get_similar_tracks_api_v1_recommendations_similar_get
parameters:
- name: seed_track_id
in: query
required: true
schema:
type: string
title: Seed Track Id
- name: limit
in: query
required: false
schema:
type: integer
maximum: 100
minimum: 1
default: 20
title: Limit
- name: min_popularity
in: query
required: false
schema:
anyOf:
- type: integer
maximum: 100
minimum: 0
- type: 'null'
title: Min Popularity
- name: genre_match
in: query
required: false
schema:
type: boolean
default: false
title: Genre Match
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/by-features:
post:
summary: Get Recommendations By Features
description: "Get track recommendations matching specific audio features.\n\nParameters:\n----------\n\
<b>features</b> : TargetFeatures (Target audio characteristics)<br>\n - tempo: float, optional\
\ (Target BPM, 0-300)<br>\n - energy: float, optional (Target energy level, 0-1)<br>\n -\
\ danceability: float, optional (Target danceability, 0-1)<br>\n - duration_ms: int, optional\
\ (Target duration in ms, 30000-900000)<br>\n - other audio features...<br>\n<b>x_api_key</b>\
\ : str (API key for authentication)<br>\n\nReturns:\n-------\nTrackIDList<br>\n List of matching\
\ track IDs<br>\n\nNotes:\n-----\nFinds tracks that best match the specified audio characteristics."
operationId: get_recommendations_by_features_api_v1_recommendations_by_features_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/TargetFeatures'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/mixed:
post:
summary: Get Mixed Recommendations
operationId: get_mixed_recommendations_api_v1_recommendations_mixed_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/MixedRecommendationParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/stats:
get:
summary: Get Analysis Stats
description: "Get comprehensive statistics about analyzed tracks.\n\nParameters:\n----------\n<b>x_api_key</b>\
\ : str (API key for authentication)<br>\n\nReturns:\n-------\nDict<br>\n general: Dict (Overall\
\ statistics)<br>\n - total_tracks: int<br>\n - analyzed_tracks: int<br>\n \
\ - unique_genres: int<br>\n - avg_popularity: float<br>\n top_genres: List[Dict]\
\ (Most common genres)<br>\n audio_characteristics: Dict (Average audio features)<br>\n\nNotes:\n\
-----\nProvides a statistical overview of the analyzed music database."
operationId: get_analysis_stats_api_v1_stats_get
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
responses:
'200':
description: Successful Response
content:
application/json:
schema: {}
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/progression:
post:
summary: Get Progression Recommendations
description: Get tracks with progressively changing audio characteristics.
operationId: get_progression_recommendations_api_v1_recommendations_progression_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ProgressionParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/compatible:
post:
summary: Get Compatible Tracks
description: "Get tracks that are musically compatible with a reference track.\n\nParameters:\n\
----------\n<b>params</b> : CompatibleParams<br>\n - track_id: str (Reference track ID)<br>\n\
\ - compatibility_type: str, default=\"both\" (key, bpm, both)<br>\n - limit: int, default=20\
\ (Number of recommendations)<br>\n - min_popularity: int, optional (Minimum popularity score)<br>\n\
<b>x_api_key</b> : str (API key for authentication)<br>\n\nReturns:\n-------\nTrackIDList<br>\n\
\ List of tracks compatible with the reference track<br>\n\nNotes:\n-----\nUseful for DJ mixing,\
\ creating smooth transitions, or harmonic playlists."
operationId: get_compatible_tracks_api_v1_recommendations_compatible_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/CompatibleParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/contrast:
post:
summary: Get Contrast Recommendations
description: "Get tracks with characteristics contrasting to a reference track.\n\nParameters:\n\
----------\n<b>params</b> : ContrastParams<br>\n - track_id: str (Reference track ID)<br>\n\
\ - contrast_features: List[str], default=[\"energy\", \"valence\"] (Features to contrast)<br>\n\
\ - limit: int, default=20 (Number of recommendations)<br>\n<b>x_api_key</b> : str (API key\
\ for authentication)<br>\n\nReturns:\n-------\nTrackIDList<br>\n List of tracks with contrasting\
\ characteristics<br>\n\nNotes:\n-----\nCreates variety in playlists by finding tracks with opposite\
\ characteristics."
operationId: get_contrast_recommendations_api_v1_recommendations_contrast_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ContrastParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/cross-genre:
post:
summary: Get Cross Genre Recommendations
description: Get tracks from different genres with similar audio characteristics.
operationId: get_cross_genre_recommendations_api_v1_recommendations_cross_genre_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/CrossGenreParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/time-of-day:
post:
summary: Get Time Of Day Recommendations
description: "Get track recommendations suitable for a specific time of day.\n\nParameters:\n----------\n\
<b>params</b> : TimeOfDayParams<br>\n - time: str (One of: morning, afternoon, evening, night)<br>\n\
\ - genre: str, optional (Specific genre filter)<br>\n - limit: int, default=20 (Number\
\ of recommendations)<br>\n<b>x_api_key</b> : str (API key for authentication)<br>\n\nReturns:\n\
-------\nTrackIDList<br>\n List of recommended track IDs suitable for the time of day<br>\n\
\nNotes:\n-----\nDifferent times of day have different energy/mood profiles."
operationId: get_time_of_day_recommendations_api_v1_recommendations_time_of_day_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/TimeOfDayParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/hidden-gems:
post:
summary: Get Hidden Gems Recommendations
description: Get recommendations for lesser-known tracks with high-quality audio features.
operationId: get_hidden_gems_recommendations_api_v1_recommendations_hidden_gems_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/HiddenGemsParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/beat-structure:
post:
summary: Get Beat Structure Recommendations
description: "Get recommendations for tracks with specific beat structure characteristics.\n\nParameters:\n\
----------\n<b>params</b> : BeatStructureParams<br>\n - min_regularity: float, default=0.7\
\ (Minimum beat regularity score 0-1)<br>\n - tempo_min: float, optional (Minimum tempo in\
\ BPM)<br>\n - tempo_max: float, optional (Maximum tempo in BPM)<br>\n - genre: str, optional\
\ (Specific genre filter)<br>\n - limit: int, default=20 (Number of recommendations)<br>\n\
<b>x_api_key</b> : str (API key for authentication)<br>\n\nReturns:\n-------\nTrackIDList<br>\n\
\ List of recommended track IDs matching beat structure criteria<br>\n\nNotes:\n-----\nUseful\
\ for finding tracks with consistent, predictable beat patterns."
operationId: get_beat_structure_recommendations_api_v1_recommendations_beat_structure_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/BeatStructureParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/duration:
post:
summary: Get Duration Recommendations
description: Get track recommendations based on specific duration requirements.
operationId: get_duration_recommendations_api_v1_recommendations_duration_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/DurationParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/mood:
post:
summary: Get Mood Recommendations
description: Get track recommendations based on desired mood.
operationId: get_mood_recommendations_api_v1_recommendations_mood_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/MoodParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/activity:
post:
summary: Get Activity Recommendations
description: Get track recommendations suitable for specific activities.
operationId: get_activity_recommendations_api_v1_recommendations_activity_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ActivityParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/instrumental:
post:
summary: Get Instrumental Recommendations
description: Get recommendations for instrumental tracks.
operationId: get_instrumental_recommendations_api_v1_recommendations_instrumental_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/InstrumentalParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
/api/v1/recommendations/acoustic:
post:
summary: Get Acoustic Recommendations
description: Get recommendations for acoustic tracks.
operationId: get_acoustic_recommendations_api_v1_recommendations_acoustic_post
parameters:
- name: x-api-key
in: header
required: false
schema:
type: string
title: X-Api-Key
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/AcousticParams'
responses:
'200':
description: Successful Response
content:
application/json:
schema:
$ref: '#/components/schemas/TrackIDList'
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/HTTPValidationError'
components:
schemas:
AcousticParams:
properties:
min_acousticness:
type: number
maximum: 1.0
minimum: 0.0
title: Min Acousticness
description: Minimum acousticness score
default: 0.5
genre:
anyOf:
- type: string
- type: 'null'
title: Genre
description: Optional genre filter
limit:
type: integer
maximum: 100.0
minimum: 1.0
title: Limit
description: Number of recommendations
default: 20
type: object
title: AcousticParams
ActivityParams:
properties:
activity:
type: string
title: Activity
description: 'Activity type: workout, study, sleep, party, focus'
genre:
anyOf:
- type: string
- type: 'null'
title: Genre
description: Optional genre filter
limit:
type: integer
maximum: 100.0
minimum: 1.0
title: Limit
description: Number of recommendations
default: 20
type: object
required:
- activity
title: ActivityParams
AnalysisFilters:
properties:
tempo_min:
anyOf:
- type: number
minimum: 0.0
- type: 'null'
title: Tempo Min
tempo_max:
anyOf:
- type: number
maximum: 300.0
- type: 'null'
title: Tempo Max
energy_min:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Energy Min
energy_max:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Energy Max
danceability_min:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Danceability Min
danceability_max:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Danceability Max
valence_min:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Valence Min
valence_max:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Valence Max
instrumentalness_min:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Instrumentalness Min
instrumentalness_max:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Instrumentalness Max
acousticness_min:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Acousticness Min
acousticness_max:
anyOf:
- type: number
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Acousticness Max
popularity_min:
anyOf:
- type: integer
maximum: 100.0
minimum: 0.0
- type: 'null'
title: Popularity Min
popularity_max:
anyOf:
- type: integer
maximum: 100.0
minimum: 0.0
- type: 'null'
title: Popularity Max
key:
anyOf:
- type: integer
maximum: 11.0
minimum: 0.0
- type: 'null'
title: Key
mode:
anyOf:
- type: integer
maximum: 1.0
minimum: 0.0
- type: 'null'
title: Mode
type: object
title: AnalysisFilters
AudioFeatures:
properties:
tempo:
type: number
title: Tempo
description: Track tempo in BPM
key:
type: integer
title: Key
description: Track key (0-11)
mode:
type: integer
title: Mode
description: Mode (0 - minor, 1 - major)
key_confidence:
type: number
title: Key Confidence
description: Key detection confidence (0-1)
energy:
type: number
title: Energy
description: Energy level (0-1)
danceability:
type: number
title: Danceability
description: Danceability score (0-1)
valence:
type: number
title: Valence
description: Mood/positiveness (0-1)
instrumentalness:
type: number
title: Instrumentalness
description: Instrumentalness score (0-1)
acousticness:
type: number
title: Acousticness
description: Acousticness score (0-1)
loudness:
type: number
title: Loudness
description: Loudness level (0-1)
segments:
anyOf:
- additionalProperties: true
type: object
- type: 'null'
title: Segments
description: Segment analysis data
beats:
anyOf:
- additionalProperties: true
type: object
- type: 'null'
title: Beats
description: Beat analysis data
type: object
required:
- tempo
- key
- mode
- key_confidence
- energy
- danceability
- valence
- instrumentalness
- acousticness
- loudness
title: AudioFeatures
description: Public audio features response model
BeatStructureParams:
properties:
min_regularity:
type: number
maximum: 1.0
minimum: 0.0
title: Min Regularity
description: Minimum beat regularity (0-1)
default: 0.7
tempo_min:
anyOf:
- type: number
minimum: 0.0
- type: 'null'
title: Tempo Min
description: Minimum tempo (BPM)
tempo_max:
anyOf:
- type: number
maximum: 300.0
- type: 'null'
title: Tempo Max
description: Maximum tempo (BPM)
genre:
anyOf:
- type: string
- type: 'null'
title: Genre
description: Optional genre filter
limit:
type: integer
maximum: 100.0
minimum: 1.0
title: Limit
description: Number of recommendations
default: 20
type: obj
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# Full source: https://raw.githubusercontent.com/api-evangelist/soundstat/refs/heads/main/openapi/soundstat-openapi.yml