Artsy

Artsy (art.sy) is the online marketplace and platform for discovering, buying, and selling fine art, connecting collectors with galleries, museums, art fairs, and auction houses worldwide. Artsy operates a public developer program: the Artsy Public API (v2) is a HAL hypermedia REST API exposing Artsy's database of artists, artworks, genes (the Art Genome Project's classification of artistic characteristics), gallery and museum shows, partners, art fairs, and auction sales. Authentication uses an application-level X-Xapp-Token minted by exchanging a client_id and client_secret. Artsy also runs the Metaphysics GraphQL API that powers its own web and mobile apps. Artsy has announced that the public REST API is being retired and may be taken down without notice; the Partner API remains available to approved partners. Surfaced as a slow-ventures portfolio company and enriched by the API Evangelist pipeline from Artsy's live API and docs.

Artsy publishes 25 APIs on the APIs.io network, including Applications API, Artists API, Artworks API, and 22 more. Tagged areas include Art, Marketplace, Culture, Museums, and Galleries.

Artsy’s developer surface includes documentation, API reference, authentication, engineering blog, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.6/100 emerging ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Art Marketplace Culture Museums Galleries Auctions Media Hypermedia Company

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 25.6/100 · emerging

Contract Quality 3.0 / 23

Developer Ergonomics 5.9 / 18

Access Clarity 3.8 / 18

Operational Transparency 3.7 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/art: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 25

Individual APIs this provider publishes, each with its own machine-readable definition.

Artsy Applications API

The Applications API from Artsy — 2 operation(s) for applications.

Artsy Artists API

The Artists API from Artsy — 2 operation(s) for artists.

Artsy Artworks API

The Artworks API from Artsy — 2 operation(s) for artworks.

Artsy Authentication API

The Authentication API from Artsy — 1 operation(s) for authentication.

Artsy Bidder Positions API

The Bidder Positions API from Artsy — 2 operation(s) for bidder positions.

Artsy Bidders API

The Bidders API from Artsy — 2 operation(s) for bidders.

Artsy Collection Items API

The Collection Items API from Artsy — 2 operation(s) for collection items.

Artsy Collections API

The Collections API from Artsy — 2 operation(s) for collections.

Artsy Collector Profiles API

The Collector Profiles API from Artsy — 2 operation(s) for collector profiles.

Artsy Devices API

The Devices API from Artsy — 2 operation(s) for devices.

Artsy Editions API

The Editions API from Artsy — 1 operation(s) for editions.

Artsy Fairs API

The Fairs API from Artsy — 2 operation(s) for fairs.

Artsy Genes API

The Genes API from Artsy — 2 operation(s) for genes.

Artsy Images API

The Images API from Artsy — 1 operation(s) for images.

Artsy Partner Communications API

The Partner Communications API from Artsy — 2 operation(s) for partner communications.

Artsy Partner Contacts API

The Partner Contacts API from Artsy — 2 operation(s) for partner contacts.

Artsy Partners API

The Partners API from Artsy — 2 operation(s) for partners.

Artsy Profiles API

The Profiles API from Artsy — 2 operation(s) for profiles.

Artsy Sale Artworks API

The Sale Artworks API from Artsy — 2 operation(s) for sale artworks.

Artsy Sales API

The Sales API from Artsy — 2 operation(s) for sales.

Artsy Search API

The Search API from Artsy — 1 operation(s) for search.

Artsy Shows API

The Shows API from Artsy — 2 operation(s) for shows.

Artsy Status API

The Status API from Artsy — 1 operation(s) for status.

Artsy User Fair Actions API

The User Fair Actions API from Artsy — 2 operation(s) for user fair actions.

Artsy Users API

The Users API from Artsy — 3 operation(s) for users.

Scroll for all 25

Open Collections 26

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Artsy Public Applications API

OPEN COLLECTION

Artsy Public Applications Artists API

OPEN COLLECTION

Artsy Public Applications Artworks API

OPEN COLLECTION

Artsy Public Applications Authentication API

OPEN COLLECTION

Artsy Public Applications Bidder Positions API

OPEN COLLECTION

Artsy Public Applications Bidders API

OPEN COLLECTION

Artsy Public Applications Collection Items API

OPEN COLLECTION

Artsy Public Applications Collections API

OPEN COLLECTION

Artsy Public Applications Collector Profiles API

OPEN COLLECTION

Artsy Public Applications Devices API

OPEN COLLECTION

Artsy Public Applications Editions API

OPEN COLLECTION

Artsy Public Applications Fairs API

OPEN COLLECTION

Artsy Public Applications Genes API

OPEN COLLECTION

Artsy Public Applications Images API

OPEN COLLECTION

Artsy Public Applications Partner Communications API

OPEN COLLECTION

Artsy Public Applications Partner Contacts API

OPEN COLLECTION

Artsy Public Applications Partners API

OPEN COLLECTION

Artsy Public Applications Profiles API

OPEN COLLECTION

Artsy Public Applications Sale Artworks API

OPEN COLLECTION

Artsy Public Applications Sales API

OPEN COLLECTION

Artsy Public Applications Search API

OPEN COLLECTION

Artsy Public Applications Shows API

OPEN COLLECTION

Artsy Public Applications Status API

OPEN COLLECTION

Artsy Public Applications User Fair Actions API

OPEN COLLECTION

Artsy Public Applications Users API

OPEN COLLECTION

Scroll for all 26

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

Find an artist and list their artworks

Mint an XApp token, search for an artist, then list that artist's artworks.

ARAZZO

Rate Limits 1

Documented rate limits and quota policies.

Art Rate Limits

1 limits

RATE LIMITS

Security Posture 2

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

Art Authentication

apiKey · 1 scheme

SECURITY

Art Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Art Agentic Access

46 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

GraphQL

GraphQL

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Arazzo

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

Deprecation

Deprecation

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: art
name: Artsy
description: 'Artsy (art.sy) is the online marketplace and platform for discovering, buying, and selling fine art, connecting
  collectors with galleries, museums, art fairs, and auction houses worldwide. Artsy operates a public developer program:
  the Artsy Public API (v2) is a HAL hypermedia REST API exposing Artsy''s database of artists, artworks, genes (the Art Genome
  Project''s classification of artistic characteristics), gallery and museum shows, partners, art fairs, and auction sales.
  Authentication uses an application-level X-Xapp-Token minted by exchanging a client_id and client_secret. Artsy also runs
  the Metaphysics GraphQL API that powers its own web and mobile apps. Artsy has announced that the public REST API is being
  retired and may be taken down without notice; the Partner API remains available to approved partners. Surfaced as a slow-ventures
  portfolio company and enriched by the API Evangelist pipeline from Artsy''s live API and docs.'
url: https://raw.githubusercontent.com/api-evangelist/art/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- slow-ventures
x-tier: enriched
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://github.com/artsy.png
tags:
- Art
- Marketplace
- Culture
- Museums
- Galleries
- Auctions
- Media
- Hypermedia
- Company
apis:
- aid: art:art-applications-api
  name: Artsy Applications API
  description: The Applications API from Artsy — 2 operation(s) for applications.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Application
  tags_raw:
  - Applications
  properties:
  - type: OpenAPI
    url: openapi/art-applications-api-openapi.yml
- aid: art:art-artists-api
  name: Artsy Artists API
  description: The Artists API from Artsy — 2 operation(s) for artists.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Artists
  properties:
  - type: OpenAPI
    url: openapi/art-artists-api-openapi.yml
- aid: art:art-artworks-api
  name: Artsy Artworks API
  description: The Artworks API from Artsy — 2 operation(s) for artworks.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Artworks
  properties:
  - type: OpenAPI
    url: openapi/art-artworks-api-openapi.yml
- aid: art:art-authentication-api
  name: Artsy Authentication API
  description: The Authentication API from Artsy — 1 operation(s) for authentication.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/art-authentication-api-openapi.yml
- aid: art:art-bidder-positions-api
  name: Artsy Bidder Positions API
  description: The Bidder Positions API from Artsy — 2 operation(s) for bidder positions.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Bidder Positions
  properties:
  - type: OpenAPI
    url: openapi/art-bidder-positions-api-openapi.yml
- aid: art:art-bidders-api
  name: Artsy Bidders API
  description: The Bidders API from Artsy — 2 operation(s) for bidders.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Bidders
  properties:
  - type: OpenAPI
    url: openapi/art-bidders-api-openapi.yml
- aid: art:art-collection-items-api
  name: Artsy Collection Items API
  description: The Collection Items API from Artsy — 2 operation(s) for collection items.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Collection Items
  properties:
  - type: OpenAPI
    url: openapi/art-collection-items-api-openapi.yml
- aid: art:art-collections-api
  name: Artsy Collections API
  description: The Collections API from Artsy — 2 operation(s) for collections.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Collection
  tags_raw:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/art-collections-api-openapi.yml
- aid: art:art-collector-profiles-api
  name: Artsy Collector Profiles API
  description: The Collector Profiles API from Artsy — 2 operation(s) for collector profiles.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Collector Profiles
  properties:
  - type: OpenAPI
    url: openapi/art-collector-profiles-api-openapi.yml
- aid: art:art-devices-api
  name: Artsy Devices API
  description: The Devices API from Artsy — 2 operation(s) for devices.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Devices
  properties:
  - type: OpenAPI
    url: openapi/art-devices-api-openapi.yml
- aid: art:art-editions-api
  name: Artsy Editions API
  description: The Editions API from Artsy — 1 operation(s) for editions.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Editions
  properties:
  - type: OpenAPI
    url: openapi/art-editions-api-openapi.yml
- aid: art:art-fairs-api
  name: Artsy Fairs API
  description: The Fairs API from Artsy — 2 operation(s) for fairs.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Fairs
  properties:
  - type: OpenAPI
    url: openapi/art-fairs-api-openapi.yml
- aid: art:art-genes-api
  name: Artsy Genes API
  description: The Genes API from Artsy — 2 operation(s) for genes.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Genes
  properties:
  - type: OpenAPI
    url: openapi/art-genes-api-openapi.yml
- aid: art:art-images-api
  name: Artsy Images API
  description: The Images API from Artsy — 1 operation(s) for images.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/art-images-api-openapi.yml
- aid: art:art-partner-communications-api
  name: Artsy Partner Communications API
  description: The Partner Communications API from Artsy — 2 operation(s) for partner communications.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Partner Communications
  properties:
  - type: OpenAPI
    url: openapi/art-partner-communications-api-openapi.yml
- aid: art:art-partner-contacts-api
  name: Artsy Partner Contacts API
  description: The Partner Contacts API from Artsy — 2 operation(s) for partner contacts.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Partner Contacts
  properties:
  - type: OpenAPI
    url: openapi/art-partner-contacts-api-openapi.yml
- aid: art:art-partners-api
  name: Artsy Partners API
  description: The Partners API from Artsy — 2 operation(s) for partners.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Partners
  properties:
  - type: OpenAPI
    url: openapi/art-partners-api-openapi.yml
- aid: art:art-profiles-api
  name: Artsy Profiles API
  description: The Profiles API from Artsy — 2 operation(s) for profiles.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Profiles
  properties:
  - type: OpenAPI
    url: openapi/art-profiles-api-openapi.yml
- aid: art:art-sale-artworks-api
  name: Artsy Sale Artworks API
  description: The Sale Artworks API from Artsy — 2 operation(s) for sale artworks.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Sale Artworks
  properties:
  - type: OpenAPI
    url: openapi/art-sale-artworks-api-openapi.yml
- aid: art:art-sales-api
  name: Artsy Sales API
  description: The Sales API from Artsy — 2 operation(s) for sales.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Sales
  properties:
  - type: OpenAPI
    url: openapi/art-sales-api-openapi.yml
- aid: art:art-search-api
  name: Artsy Search API
  description: The Search API from Artsy — 1 operation(s) for search.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/art-search-api-openapi.yml
- aid: art:art-shows-api
  name: Artsy Shows API
  description: The Shows API from Artsy — 2 operation(s) for shows.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Shows
  properties:
  - type: OpenAPI
    url: openapi/art-shows-api-openapi.yml
- aid: art:art-status-api
  name: Artsy Status API
  description: The Status API from Artsy — 1 operation(s) for status.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/art-status-api-openapi.yml
- aid: art:art-user-fair-actions-api
  name: Artsy User Fair Actions API
  description: The User Fair Actions API from Artsy — 2 operation(s) for user fair actions.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - User Fair Actions
  properties:
  - type: OpenAPI
    url: openapi/art-user-fair-actions-api-openapi.yml
- aid: art:art-users-api
  name: Artsy Users API
  description: The Users API from Artsy — 3 operation(s) for users.
  humanURL: https://developers.artsy.net/
  baseURL: https://api.artsy.net/api
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/art-users-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/art-openapi-overlay.yaml
- type: DeveloperPortal
  url: https://developers.artsy.net/
- type: Documentation
  url: https://developers.artsy.net/v2/docs
- type: APIReference
  url: https://developers.artsy.net/v2
- type: Authentication
  url: authentication/art-authentication.yml
- type: AgenticAccess
  url: agentic-access/art-agentic-access.yml
- type: Conventions
  url: conventions/art-conventions.yml
- type: ErrorCatalog
  url: errors/art-problem-types.yml
- type: Lifecycle
  url: lifecycle/art-lifecycle.yml
- type: StatusPage
  url: https://api.artsy.net/api/status/
- type: Deprecation
  url: https://developers.artsy.net/v2/docs
- type: RateLimits
  url: rate-limits/art-rate-limits.yml
- type: Conformance
  url: conformance/art-conformance.yml
- type: DataModel
  url: data-model/art-data-model.yml
- type: Components
  url: components/art-components.yml
- type: X-MCPServerCandidate
  url: mcp/art-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/art-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Arazzo
  name: Find an artist and list their artworks
  url: arazzo/art-find-artist-artworks.yml
- type: DomainSecurity
  url: security/art-domain-security.yml
- type: GraphQL
  url: https://github.com/artsy/metaphysics
- type: GitHubOrganization
  url: https://github.com/artsy
- type: Blog
  url: https://artsy.github.io/
- type: TermsOfService
  url: https://www.artsy.net/terms
- type: PrivacyPolicy
  url: https://www.artsy.net/privacy
- type: Website
  url: https://www.artsy.net
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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