aid: arpeggi-labs
name: Arpeggi Labs
description: >-
  Arpeggi Labs is the company behind Kits AI, a studio-quality AI music and
  audio platform for musicians, producers, and developers. Kits AI provides
  voice cloning and conversion, an AI singing generator with 100+ royalty-free
  artist voice models, vocal isolation, stem separation, AI mastering, and a
  voice-model blender, alongside an ethically sourced "Earn" program that pays
  vocalists to license digital clones of their voice. The Kits AI API exposes
  these capabilities as asynchronous inference jobs over a REST interface at
  arpeggi.io/api/kits/v1, authenticated with a bearer API key: create a voice
  conversion, vocal separation, stem split, or voice-blend job, then poll for
  the signed output file URLs. Arpeggi Labs is an a16z portfolio company; its
  earlier product was Arpeggi Studio, a web3 in-browser music creation platform.
url: https://raw.githubusercontent.com/api-evangelist/arpeggi-labs/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kits.ai/opengraph-image
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: profiled
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Music
- Audio
- Artificial Intelligence
- Voice
- Machine Learning
- Generative AI
- Media
apis:
- aid: arpeggi-labs:arpeggi-labs-stem-splitter-api
  name: Arpeggi Labs Stem Splitter API
  description: Split an audio track into vocal and instrument stems.
  humanURL: https://docs.kits.ai/api-reference/introduction/getting-started
  baseURL: https://arpeggi.io/api/kits/v1
  tags:
  - Stem Splitter
  properties:
  - type: OpenAPI
    url: openapi/arpeggi-labs-stem-splitter-api-openapi.yml
  - type: Documentation
    url: https://docs.kits.ai
  - type: APIReference
    url: https://docs.kits.ai/api-reference/introduction/getting-started
- aid: arpeggi-labs:arpeggi-labs-vocal-separation-api
  name: Arpeggi Labs Vocal Separation API
  description: Isolate vocals from a mixed audio track.
  humanURL: https://docs.kits.ai/api-reference/introduction/getting-started
  baseURL: https://arpeggi.io/api/kits/v1
  tags:
  - Vocal Separation
  properties:
  - type: OpenAPI
    url: openapi/arpeggi-labs-vocal-separation-api-openapi.yml
  - type: Documentation
    url: https://docs.kits.ai
  - type: APIReference
    url: https://docs.kits.ai/api-reference/introduction/getting-started
- aid: arpeggi-labs:arpeggi-labs-voice-blender-api
  name: Arpeggi Labs Voice Blender API
  description: Blend two to four voice models into a new voice model.
  humanURL: https://docs.kits.ai/api-reference/introduction/getting-started
  baseURL: https://arpeggi.io/api/kits/v1
  tags:
  - Voice Blender
  properties:
  - type: OpenAPI
    url: openapi/arpeggi-labs-voice-blender-api-openapi.yml
  - type: Documentation
    url: https://docs.kits.ai
  - type: APIReference
    url: https://docs.kits.ai/api-reference/introduction/getting-started
- aid: arpeggi-labs:arpeggi-labs-voice-conversion-api
  name: Arpeggi Labs Voice Conversion API
  description: Convert an input performance to a target voice model.
  humanURL: https://docs.kits.ai/api-reference/introduction/getting-started
  baseURL: https://arpeggi.io/api/kits/v1
  tags:
  - Voice Conversion
  properties:
  - type: OpenAPI
    url: openapi/arpeggi-labs-voice-conversion-api-openapi.yml
  - type: Documentation
    url: https://docs.kits.ai
  - type: APIReference
    url: https://docs.kits.ai/api-reference/introduction/getting-started
- aid: arpeggi-labs:arpeggi-labs-voice-models-api
  name: Arpeggi Labs Voice Models API
  description: Browse and retrieve available voice models.
  humanURL: https://docs.kits.ai/api-reference/introduction/getting-started
  baseURL: https://arpeggi.io/api/kits/v1
  tags:
  - Voice Models
  properties:
  - type: OpenAPI
    url: openapi/arpeggi-labs-voice-models-api-openapi.yml
  - type: Documentation
    url: https://docs.kits.ai
  - type: APIReference
    url: https://docs.kits.ai/api-reference/introduction/getting-started
common:
- type: DomainSecurity
  url: security/arpeggi-labs-domain-security.yml
- type: Authentication
  url: authentication/arpeggi-labs-authentication.yml
- type: Website
  url: https://kits.ai
- type: DeveloperPortal
  url: https://app.kits.ai
- type: Documentation
  url: https://docs.kits.ai
- type: APIReference
  url: https://docs.kits.ai/api-reference/introduction/getting-started
- type: GettingStarted
  url: https://docs.kits.ai/api-reference/introduction/quick-start
- type: Support
  url: https://help.kits.ai/
- type: Blog
  url: https://www.kits.ai/blog
- type: GitHubOrganization
  url: https://github.com/arpeggi-labs
- type: Pricing
  url: https://app.kits.ai/subscriptions
- type: SignUp
  url: https://app.kits.ai
- type: TermsOfService
  url: https://www.kits.ai/terms-of-service
- type: PrivacyPolicy
  url: https://www.kits.ai/privacy-policy
- type: LLMsTxt
  url: llms/arpeggi-labs-llms.txt
- type: RateLimits
  url: rate-limits/arpeggi-labs-rate-limits.yml
- type: ErrorCatalog
  url: errors/arpeggi-labs-problem-types.yml
- type: Conventions
  url: conventions/arpeggi-labs-conventions.yml
- type: Lifecycle
  url: lifecycle/arpeggi-labs-lifecycle.yml
- type: DataModel
  url: data-model/arpeggi-labs-data-model.yml
- type: Conformance
  url: conformance/arpeggi-labs-conformance.yml
- type: MCPServer
  url: mcp/arpeggi-labs-mcp.yml
- type: Packages
  url: packages/arpeggi-labs-packages.yml
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence