ALT/FNDATA

ALT/FNDATA connects Claude to auction results — sold and unsold, with estimates and realized prices — from 100+ auction houses worldwide, normalized to USD. It covers 20 categories: watches; jewelry; loose gemstones; handbags; classic and collector cars; motorcycles; aircraft and private jets; wine and whisky; fine art; works of art; design and decorative arts; fashion and couture; shoes and sneakers; automobilia; rare books and manuscripts; coins and numismatics; other vehicles (boats, trucks, tractors); perfume and fragrance; accessories; musical instruments. Ask in plain language and Claude picks the right tool: search the whole market, pull a category's price statistics (median, 25th/75th percentiles, top houses), chart how prices moved over time, get a single item's fair-value range from comparable sales, or read a precomputed model-level price index for watches, handbags and cars. Built for valuation and research. Jewelry, watch, car and personal-property appraisers use it for auction comparables and insurance replacement-value work; analysts, insurers, wealth managers and academics use it for market reads. Every result carries the auction house, sale date, a source link and photos, so an answer can cite the exact sale it used. All 9 tools are read-only — the connector never places bids, moves funds, or modifies data. Authentication is OAuth; after connecting, a short sign-in page asks for your ALT/FNDATA API key. Docs: https://docs.altfndata.com