decode_zip
ChatGPTDecode a US ZIP code to city, state, and coordinates. Use this when the user mentions a ZIP code and you need to narrow a search by location.
Overview
Search used vehicles from private sellers on PrivateAuto, explore listing photos and specifications, compare asking prices with valuation ranges, and view market and ZIP-code insights in ChatGPT. Continue on PrivateAuto to contact a seller, make an offer, or complete a transaction. The ChatGPT integration is read-only and does not require a PrivateAuto login.
Tools
get_listing_by_slug
ChatGPTGet full details of a single PrivateAuto listing by its URL slug. Returns all photos, specs, features, seller info, and condition. Use after search_listings when the user wants to see more detail on a specific result.
get_market_insights
ChatGPTGet market statistics for a specific vehicle (price range, average price and mileage, listing count). Returns a compact summary the model can reason about; the full per-listing dataset is attached to the widget response only.
get_retail_price
ChatGPTGet private-party, retail, and trade-in value ranges (clean / average / rough) for a specific vehicle listing, plus the seller's asking price. Use this to judge whether a listing is priced fairly against market comps.
get_similar_listings
ChatGPTFind comparable vehicles to a given listing, matched by make, model, year, and price. Pass the human-facing listing slug when the user identifies a listing by URL or slug. The MongoDB listing _id returned by search_listings or get_listing_by_slug is also supported. Provide either the slug (preferred) or the _id.
search_listings
ChatGPTSearch PrivateAuto vehicle listings. For natural-language vehicle queries — e.g. 'black Ford F-150 Raptor', 'red convertible under $20,000', 'Tesla near 46201' — use the
search field: it supports free-text matching and handles make, model, trim, color, and body style in a single query without requiring exact field values. Numeric and location filters (yearMin/Max, priceMin/Max, zip, radius, state, etc.) can be combined with search for precise narrowing. If a query returns 0 results the server automatically broadens it and returns the best available match with a searchNote explaining what changed.Capabilities
Interactive
Example Prompts
Click any prompt to copy it.
