aid: masterworks
name: Masterworks
description: >-
  Masterworks is a New York fintech platform that securitizes blue-chip contemporary art. Founded in
  2017 and headquartered at 1 World Trade Center, it acquires paintings by artists such as Picasso,
  Basquiat, Warhol, Monet and Banksy, places each work in its own LLC, files it with the SEC as a
  separate Regulation A offering, and sells fractional shares to retail investors — who can also
  trade those shares with each other on a Masterworks-operated secondary market. The company runs a
  consumer web app, iOS/Android apps and an "Academy" education site, all backed by a single
  GraphQL endpoint at api.masterworks.com/graphql. Masterworks publishes no developer program,
  no OpenAPI, no API documentation and no SDKs: the GraphQL endpoint is the private backend for its
  own clients. It does, however, answer anonymous schema introspection, so the full machine-readable
  contract — 516 queries, 621 mutations, 5 subscriptions and 1,584 types — is publicly readable
  even though every data operation returns 401 invalidAuthentication without a user token.
image: https://www.masterworks.com/mwlogo-400x100.png
url: https://raw.githubusercontent.com/api-evangelist/masterworks/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-08-04'
modified: '2026-08-04'
tags:
- Art
- Art Investing
- Alternative Investments
- Fintech
- Investing
- Securities
- Fractional Ownership
- Secondary Market
- Wealth Management
- Regulation A
- GraphQL
apis:
- name: Masterworks GraphQL API
  description: >-
    The single GraphQL endpoint behind the Masterworks web and mobile apps, covering art offerings,
    artists, auction and repeat-sale data, contributions, agreements and e-signature, KYC and
    accreditation, payments and payouts, the secondary-market exchange, art events, activity feeds,
    referrals and internal notification tooling. It is an undocumented first-party backend, not a
    published developer API: anonymous schema introspection is enabled, but every data field is
    guarded by an @authenticate directive and returns HTTP 200 with an
    errors[].extensions.code of invalidAuthentication (status 401) when called without a token.
  humanURL: https://www.masterworks.com/
  baseURL: https://api.masterworks.com/graphql
  tags:
  - Art Investing
  - Alternative Investments
  - GraphQL
  - Securities
  - Fintech
  properties:
  - type: GraphQL
    url: graphql/masterworks-graphql.yml
  - type: Authentication
    url: authentication/masterworks-authentication.yml
  - type: ErrorCatalog
    url: errors/masterworks-error-codes.yml
  - type: Conventions
    url: conventions/masterworks-conventions.yml
  - type: DataModel
    url: data-model/masterworks-data-model.yml
  - type: Lifecycle
    url: lifecycle/masterworks-lifecycle.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/masterworks-domain-security.yml
- type: Website
  url: https://www.masterworks.com/
- type: GraphQL
  url: graphql/masterworks-graphql.yml
- type: Authentication
  url: authentication/masterworks-authentication.yml
- type: Conventions
  url: conventions/masterworks-conventions.yml
- type: ErrorCatalog
  url: errors/masterworks-error-codes.yml
- type: DataModel
  url: data-model/masterworks-data-model.yml
- type: Lifecycle
  url: lifecycle/masterworks-lifecycle.yml
- type: Conformance
  url: conformance/masterworks-conformance.yml
- type: LLMsTxt
  url: llms/masterworks-llms.txt
- type: Support
  url: https://knowledge.masterworks.com/en/knowledge
- type: Blog
  url: https://www.masterworks.com/academy/posts
- type: BlogRSS
  url: https://www.masterworks.com/academy/rss.xml
- type: GitHubOrganization
  url: https://github.com/MasterworksIO
- type: SignUp
  url: https://www.masterworks.com/wizard/membership/
- type: TermsOfService
  url: https://www.masterworks.com/about/terms-of-use
- type: PrivacyPolicy
  url: https://www.masterworks.com/about/privacy
- type: About
  url: https://www.masterworks.com/about/about-masterworks
- type: HowItWorks
  url: https://www.masterworks.com/about/how-it-works
- type: Disclosure
  url: https://www.masterworks.com/about/disclosure
- type: Careers
  url: https://masterworks.breezy.hr/
- type: SecondaryMarketListing
  url: https://forgeglobal.com/masterworks_stock/
x-enrichment:
  date: '2026-08-04'
  status: enriched
  artifacts_added: 11
  pass: local-v1
x-coverage:
  state: covered
  reason: covered
  detail: >-
    No developer program exists, but anonymous GraphQL introspection at
    https://api.masterworks.com/graphql returned the complete 1,584-type contract (516 queries,
    621 mutations, 5 subscriptions), which is the basis of this profile.
  evidence:
  - url: https://api.masterworks.com/graphql
    status: 200
  - url: https://api.masterworks.com/openapi.json
    status: 404
  - url: https://api.masterworks.com/.well-known/agent-card.json
    status: 404
  checked: '2026-08-04'