Search Blocket.se for second-hand listings. The location filter is REGIONAL (län), not a precise km radius. Pass locations (region names from list_blocket_locations()) to narrow the search; if omitted it uses the BLOCKET_LOCATIONS env default, or all of Sweden if that is unset. Each result includes the ad's text location plus coordinates/distance so you can apply a precise 'within X min drive' filter yourself. Use list_blocket_categories() first if you want to filter by category.

List valid category names to pass into search_blocket()'s category argument.

List valid region (län) names to pass into search_blocket()'s locations argument.

Search Tradera.com (official API) for second-hand listings/auctions. Requires TRADERA_APP_ID and TRADERA_APP_KEY to be configured — register at https://api.tradera.com/ if you haven't.

Fetch Tradera's category tree, to find category_id values for search_tradera().

Fetch Tradera's county list (id -> name) for search_tradera()'s optional county_id filter. Tradera is national with shipping, so this is rarely needed.

Search Facebook Marketplace. DISABLED BY DEFAULT — this requires an unofficial method that violates Facebook's Terms of Service. Returns an explanatory error unless ENABLE_FACEBOOK_SEARCH=1 is set and the stub in src/facebook_client.py has been implemented. See its docstring.

Search Klaravik.se, a Swedish online auction house — strong for undervalued tools, machinery, and house-clearance goods. Prices are the current bid (SEK) and can rise before the auction ends. Swedish search terms work best.

Search Vinted.se, a second-hand fashion marketplace — good for genuine leather/wool and branded clothing. National (ships anywhere). Unofficial and the most fragile source (bot-protected); may occasionally be rate-limited.

Search Blocket + Tradera + Klaravik + Vinted (+ Facebook Marketplace if enabled) in one call and return combined, normalized results. Use this for the weekly sourcing sweep instead of calling each source separately.