SoundStat

SoundStat is an independent audio analysis API that returns detailed per-track features - tempo (BPM), key, mode, energy, danceability, valence, instrumentalness, acousticness, loudness, plus segment and beat structure - for music tracks referenced by Spotify track ID. Launched in early 2025 as an alternative after Spotify deprecated its public audio-features and recommendations endpoints, SoundStat has analyzed several million tracks and layers a rich recommendation engine (similar, feature-target, mixed-seed, mood, activity, time-of-day, cross-genre, DJ-compatible, contrast, hidden-gems, and more) plus genre-and-feature search on top of its analysis corpus. The REST API is authenticated with an x-api-key header and billed per unique track analyzed.

SoundStat publishes 5 APIs on the APIs.io network, including Genres API, Recommendations API, Stats API, and 2 more. Tagged areas include Music, Audio Analysis, Audio Features, Recommendations, and Track Analysis.

SoundStat’s developer surface includes authentication, documentation, signup flow, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

42.1/100 developing ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

5 APIs

Music Audio Analysis Audio Features RecommendationsTrack AnalysisSpotify Alternative

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 42.1/100 · developing

Contract Quality 13.7 / 25

Developer Ergonomics 4.3 / 20

Access Clarity 12.6 / 20

Operational Transparency 4.1 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/soundstat: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Soundstat Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: soundstat
url: https://raw.githubusercontent.com/api-evangelist/soundstat/refs/heads/main/apis.yml
name: SoundStat
kind: company
description: SoundStat is an independent audio analysis API that returns detailed per-track features - tempo (BPM), key, mode,
  energy, danceability, valence, instrumentalness, acousticness, loudness, plus segment and beat structure - for music tracks
  referenced by Spotify track ID. Launched in early 2025 as an alternative after Spotify deprecated its public audio-features
  and recommendations endpoints, SoundStat has analyzed several million tracks and layers a rich recommendation engine (similar,
  feature-target, mixed-seed, mood, activity, time-of-day, cross-genre, DJ-compatible, contrast, hidden-gems, and more) plus
  genre-and-feature search on top of its analysis corpus. The REST API is authenticated with an x-api-key header and billed
  per unique track analyzed.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/soundstat.png
tags:
- Music
- Audio Analysis
- Audio Features
- Recommendations
- Track Analysis
- Spotify Alternative
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: soundstat:soundstat-genres-api
  name: SoundStat Genres API
  description: The Genres API from SoundStat — 1 operation(s) for genres.
  humanURL: https://soundstat.info/api/v1/docs
  baseURL: https://soundstat.info/api/v1
  tags:
  - Genres
  properties:
  - type: OpenAPI
    url: openapi/soundstat-genres-api-openapi.yml
  - type: Documentation
    url: https://soundstat.info/api/v1/docs
  - type: APIReference
    url: https://soundstat.info/api/v1/docs
  - type: PostmanCollection
    url: collections/soundstat.postman_collection.json
  - type: OpenCollection
    url: collections/soundstat.opencollection.json
  - type: Documentation
    url: https://soundstat.info/article/New-Horizons-in-Music-Recommendations.html
- aid: soundstat:soundstat-recommendations-api
  name: SoundStat Recommendations API
  description: The Recommendations API from SoundStat — 15 operation(s) for recommendations.
  humanURL: https://soundstat.info/api/v1/docs
  baseURL: https://soundstat.info/api/v1
  tags:
  - Recommendations
  properties:
  - type: OpenAPI
    url: openapi/soundstat-recommendations-api-openapi.yml
  - type: Documentation
    url: https://soundstat.info/api/v1/docs
  - type: APIReference
    url: https://soundstat.info/api/v1/docs
  - type: PostmanCollection
    url: collections/soundstat.postman_collection.json
  - type: OpenCollection
    url: collections/soundstat.opencollection.json
  - type: Documentation
    url: https://soundstat.info/article/New-Horizons-in-Music-Recommendations.html
- aid: soundstat:soundstat-stats-api
  name: SoundStat Stats API
  description: The Stats API from SoundStat — 1 operation(s) for stats.
  humanURL: https://soundstat.info/api/v1/docs
  baseURL: https://soundstat.info/api/v1
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/soundstat-stats-api-openapi.yml
  - type: Documentation
    url: https://soundstat.info/api/v1/docs
  - type: APIReference
    url: https://soundstat.info/api/v1/docs
  - type: PostmanCollection
    url: collections/soundstat.postman_collection.json
  - type: OpenCollection
    url: collections/soundstat.opencollection.json
  - type: Documentation
    url: https://soundstat.info/article/New-Horizons-in-Music-Recommendations.html
- aid: soundstat:soundstat-track-api
  name: SoundStat Track API
  description: The Track API from SoundStat — 2 operation(s) for track.
  humanURL: https://soundstat.info/api/v1/docs
  baseURL: https://soundstat.info/api/v1
  tags:
  - Track
  properties:
  - type: OpenAPI
    url: openapi/soundstat-track-api-openapi.yml
  - type: Documentation
    url: https://soundstat.info/api/v1/docs
  - type: APIReference
    url: https://soundstat.info/api/v1/docs
  - type: PostmanCollection
    url: collections/soundstat.postman_collection.json
  - type: OpenCollection
    url: collections/soundstat.opencollection.json
  - type: Documentation
    url: https://soundstat.info/article/New-Horizons-in-Music-Recommendations.html
- aid: soundstat:soundstat-tracks-api
  name: SoundStat Tracks API
  description: The Tracks API from SoundStat — 1 operation(s) for tracks.
  humanURL: https://soundstat.info/api/v1/docs
  baseURL: https://soundstat.info/api/v1
  tags:
  - Tracks
  properties:
  - type: OpenAPI
    url: openapi/soundstat-tracks-api-openapi.yml
  - type: Documentation
    url: https://soundstat.info/api/v1/docs
  - type: APIReference
    url: https://soundstat.info/api/v1/docs
  - type: PostmanCollection
    url: collections/soundstat.postman_collection.json
  - type: OpenCollection
    url: collections/soundstat.opencollection.json
  - type: Documentation
    url: https://soundstat.info/article/New-Horizons-in-Music-Recommendations.html
common:
- type: AgenticAccess
  url: agentic-access/soundstat-agentic-access.yml
- type: DomainSecurity
  url: security/soundstat-domain-security.yml
- type: Authentication
  url: authentication/soundstat-authentication.yml
- type: Website
  url: https://soundstat.info
- type: Documentation
  url: https://soundstat.info/api/v1/docs
- type: SignUp
  url: https://soundstat.info/auth.html
- type: TermsOfService
  url: https://soundstat.info/terms.html
- type: Plans
  url: plans/soundstat-plans-pricing.yml
- type: RateLimits
  url: rate-limits/soundstat-rate-limits.yml
- type: FinOps
  url: finops/soundstat-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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