Smule

Smule is an American consumer music technology company whose flagship social singing and karaoke app lets people perform solos, duets, and group songs and collaborate with other singers around the world in real time. Launched on iOS in 2012 and on Android in 2013 under the name "Sing! Karaoke," the app grew to tens of millions of monthly active users. Smule Inc. is headquartered in San Francisco and is backed by Bessemer Venture Partners and Shasta Ventures. Smule publishes no official public developer API; this profile tracks the company for the API Evangelist network.

Smule is profiled on the APIs.io network. Tagged areas include Company, Consumer, Music, Karaoke, and Singing.

Smule’s developer surface includes engineering blog and 2 more developer resources.

🌐 Visit website 📡 Source on GitHub
7.2/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyConsumerMusicKaraokeSingingMobileSocialEntertainment

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 7.2/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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/smule: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Smule Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: smule
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/smule.png
name: Smule
description: Smule is an American consumer music technology company whose flagship social singing and karaoke app lets people
  perform solos, duets, and group songs and collaborate with other singers around the world in real time. Launched on iOS
  in 2012 and on Android in 2013 under the name "Sing! Karaoke," the app grew to tens of millions of monthly active users.
  Smule Inc. is headquartered in San Francisco and is backed by Bessemer Venture Partners and Shasta Ventures. Smule publishes
  no official public developer API; this profile tracks the company for the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/smule/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
- shasta-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Consumer
- Music
- Karaoke
- Singing
- Mobile
- Social
- Entertainment
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/smule-domain-security.yml
- type: Website
  url: https://www.smule.com/
- type: Blog
  url: https://blog.smule.com/
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1