Developer Documentation

Art Market API documentation

The Art Market API is a REST API that delivers structured art market data: auction results, artist analytics, comparable sales, valuations, and market indices. Responses are clean JSON with aggregate statistics, designed for research workflows, LLM retrieval, and embeddings.

Base URL

https://api.artmarketapi.com/api/v1

Authentication

All requests require an API key sent as a bearer token. Create and manage keys from your dashboard after creating an account.

Authorization: Bearer amapi_live_your_key_here

Endpoints

  • GET /artistsArtist profiles, market positioning, and exhibition history
  • GET /auctionsAuction sales and calendar data
  • GET /auction-housesAuction house directory and metadata
  • GET /auction-recordsIndividual lot records with prices, estimates, and sale outcomes
  • GET /searchFull-text search across artists, works, and sales
  • GET /price_databaseHistorical price database queries
  • GET /comparable_salesAI-optimized comparable sales with built-in statistics
  • GET /valuationAI-assisted valuation context for artworks
  • GET /valuation_analysisDeeper valuation analysis for a specific work
  • GET /describeAI-generated artwork descriptions
  • GET /analyticsMarket analytics and heat indices
  • GET /market_trendsCategory performance and price trends
  • GET /indexesMarket indexes and time series
  • GET /exportsCSV/JSON exports and bulk data
  • POST /nlNatural-language query endpoint
  • POST /chatConversational research endpoint

Example request

curl "https://api.artmarketapi.com/api/v1/auction-records?artist=Gerhard%20Richter&sold_after=2024-01-01" \
  -H "Authorization: Bearer amapi_live_your_key_here"

Official SDKs

OpenAPI specification

A machine-readable OpenAPI 3.1 specification of every endpoint is published at artmarketapi.com/openapi.json. Use it to generate clients, explore the API surface, or ground AI coding tools.

Interactive documentation

Full interactive docs with a live API tester are available at app.artmarketapi.com/docs (account required).

Plans and rate limits

Access is credit-based across Advisor, Professional, and Enterprise tiers, with monthly subscription credits and purchasable credit packs. Rate limits vary by tier. See pricing or contact enterprise@artmarketapi.com for enterprise access.

For AI agents

A machine-readable site guide is published at /llms.txt, and every page on this site can be fetched as markdown by sending an Accept: text/markdown header. Questions: team@artmarketapi.com