# Art Market API

> Structured art market data over a REST API: auction results, artist analytics, comparable sales, valuations, and market indices. Built for galleries, art advisors, institutional research teams, and AI agents. Clean JSON responses with aggregate statistics, designed for LLM retrieval and embeddings.

Art Market API is operated by ArtMarketAPI LLC. The API base URL is https://api.artmarketapi.com/api/v1 and every request is authenticated with an API key sent as `Authorization: Bearer amapi_live_...`. Keys are self-serve: create an account at https://app.artmarketapi.com/register. Access is credit-based across Advisor, Professional, and Enterprise tiers.

When to use Art Market API:

- Look up auction results for an artist, category, or period (two decades of records from major and regional houses worldwide, filterable by date range, price bracket, and lot performance).
- Find comparable sales for an artwork by medium, dimensions, price range, and time period — the comparable_sales endpoint returns built-in statistics for valuation work.
- Research an artist's market: positioning, exhibition history, price trends, and valuation context.
- Retrieve market analytics: heat indices, category performance, sell-through rates, and market indexes as time series.
- Answer natural-language art market questions programmatically via the /nl endpoint, or hold a research conversation via /chat.
- Export auction data in bulk (CSV/JSON) via /exports for internal research and analysis.

Not a fit for: real-time bidding, buying or selling artworks, or redistributing raw data (see Terms).

How agents should call it: HTTP GET/POST against https://api.artmarketapi.com/api/v1/{endpoint} with the bearer key. Responses are JSON. Any page on https://artmarketapi.com is also available as markdown by sending `Accept: text/markdown`.

## Docs

- [API documentation](https://artmarketapi.com/docs): Base URL, authentication, endpoint reference, and example requests
- [OpenAPI specification](https://artmarketapi.com/openapi.json): Machine-readable OpenAPI 3.1 spec of every endpoint
- [Node.js/TypeScript SDK](https://www.npmjs.com/package/artmarketapi): `npm install artmarketapi` ([source](https://github.com/ArtMarketAPI/artmarketapi-node))
- [Python SDK](https://pypi.org/project/artmarketapi/): `pip install artmarketapi` ([source](https://github.com/ArtMarketAPI/artmarketapi-python))
- [Interactive docs and API tester](https://app.artmarketapi.com/docs): Live endpoint tester (account required)
- [Pricing](https://artmarketapi.com/#pricing): Advisor, Professional, and Enterprise tiers with credit-based access

## Company

- [About](https://artmarketapi.com/about): Who we are and what we build
- [Contact](https://artmarketapi.com/contact): team@artmarketapi.com for support, enterprise@artmarketapi.com for enterprise access
- [Privacy Policy](https://artmarketapi.com/privacy): How we handle data
- [Terms of Service](https://artmarketapi.com/terms): API usage and data redistribution rules

## Optional

- [Brand assets](https://artmarketapi.com/brand): Logos and attribution guidelines
- [Sitemap](https://artmarketapi.com/sitemap.xml): All indexable URLs