UnitedMasters

UnitedMasters is an independent music distribution platform founded by Steve Stoute in 2017 and backed by Alphabet, Andreessen Horowitz (a16z), and Apple. Artists distribute music to 150+ streaming services while keeping full ownership of their master recordings, with real-time royalty payouts, Blueprint AI artist development tools, analytics, and brand and sync licensing partnerships with the NBA, ESPN, TikTok, and other major brands. UnitedMasters does not currently publish a public developer API, SDKs, or API documentation.

UnitedMasters is profiled on the APIs.io network. Tagged areas include Music, Music Distribution, Streaming, Royalties, and Creator Economy.

UnitedMasters’ developer surface includes support, engineering blog, pricing, signup flow, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
19.0/100 emerging ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
MusicMusic DistributionStreamingRoyaltiesCreator EconomyEntertainmentMedia

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 19.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · 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 4 / 4
Consent & Bot Identity 3 / 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/unitedmasters: 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 2

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

Unitedmasters Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Unitedmasters Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp
SignUp
 Login
Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 DomainSecurity
DomainSecurity
 SecurityTxt
SecurityTxt

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: unitedmasters
name: UnitedMasters
description: UnitedMasters is an independent music distribution platform founded by Steve Stoute in 2017 and backed by Alphabet,
  Andreessen Horowitz (a16z), and Apple. Artists distribute music to 150+ streaming services while keeping full ownership
  of their master recordings, with real-time royalty payouts, Blueprint AI artist development tools, analytics, and brand
  and sync licensing partnerships with the NBA, ESPN, TikTok, and other major brands. UnitedMasters does not currently publish
  a public developer API, SDKs, or API documentation.
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://avatars.githubusercontent.com/u/26073772
url: https://raw.githubusercontent.com/api-evangelist/unitedmasters/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Music
- Music Distribution
- Streaming
- Royalties
- Creator Economy
- Entertainment
- Media
apis: []
common:
- type: VulnerabilityDisclosure
  url: security/unitedmasters-vulnerability-disclosure.yml
- type: Security
  url: https://unitedmasters.com/.well-known/security.txt
- type: DomainSecurity
  url: security/unitedmasters-domain-security.yml
- type: Website
  url: https://unitedmasters.com
- type: Support
  url: https://support.unitedmasters.com
- type: Blog
  url: https://news.unitedmasters.com
- type: Pricing
  url: https://unitedmasters.com/plans
- type: SignUp
  url: https://unitedmasters.com/join/s/account-info
- type: Login
  url: https://unitedmasters.com/login
- type: TermsOfService
  url: https://unitedmasters.com/terms
- type: PrivacyPolicy
  url: https://unitedmasters.com/privacy
- type: GitHubOrganization
  url: https://github.com/tommyboytech
- type: WellKnown
  url: well-known/unitedmasters-well-known.yml
- type: SecurityTxt
  url: well-known/unitedmasters-security.txt
- type: LLMsTxt
  url: llms/unitedmasters-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 5
  pass: local-v1