# Masterworks

**Canonical:** https://apis.io/providers/masterworks/  
**Website:** https://www.masterworks.com/  
**APIs profiled:** 1

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.

## Kin Score — 32.5 / 100 (thin)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 32.5).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 43.2 |
| Governance | 3.1 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 17.4 |
| Commercial Clarity | 34.2 |

Regulatory layer — **Securities & Market Data**: 41.7 (matched via tags).

## Agent readiness — 32.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (1)

- **Masterworks GraphQL API** — 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,...

## Security (2)

- **Masterworks Authentication** — bearer-token · 2 schemes
- **Masterworks Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Art, Art Investing, Alternative Investments, Fintech, Investing, Securities, Fractional Ownership, Secondary Market, Wealth Management, Regulation A, GraphQL

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/masterworks/). Scores are computed from the provider's own public artifacts under a published rubric.