Housing market context: county listing price, inventory, days on market, ACS value and rent (estimate)

Returns county median listing price, active listings, and median days on market with year-over-year change, plus ACS median home value and gross rent at ZIP, county, and state. Listings are the monthly Realtor.com series on FRED, where published. Estimates only, never a parcel valuation or a ranking. For agents comparing places. Use this when you can call Locus free tools (REST tools/call or MCP). Use locus-market-context instead when your client can only call paid x402 routes; it returns the same records. Direct flat-body route for this one free resource; no API key, payment, or catalog wrapper. Return only the cited bounded evidence described here; this route never produces a paid brief or full report.