Solutions/Art Valuation API

Art Valuation API

Generate defensible artwork valuations from real auction evidence. The valuation endpoints combine comparable sales, dimension-normalized pricing, and an artist’s market trajectory into low/average/high estimates.

Use the basic valuation for fast estimates, or the analysis endpoint to get the estimate together with the comparable lots that produced it — the same evidence an appraiser would cite.

Example

# Value a 65×54cm painting by a given artist

curl -X POST "https://api.artmarketapi.com/api/v1/valuation" \
  -H "Authorization: Bearer amapi_live_your_key" \
  -H "Content-Type: application/json" \
  -d '{"artist":"{artistId}","width":65,"height":54,"category":"painting"}'

Key endpoints

  • POST /valuationLow/average/high estimate from artist + dimensions
  • POST /valuation_analysisEstimate plus the comparable sales behind it
  • POST /analytics/predict1/3/5-year price projections
  • GET /comparable_salesThe underlying comparable-sales evidence

Evidence-based

Every estimate is computed from actual hammer prices of dimensionally and categorically similar works.

Transparent

The analysis endpoint returns the comparable lots, so you can show clients why the number is the number.

Portfolio-ready

Batch analytics endpoints value whole collections with appreciation and diversification metrics.

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