Deal Finder
Source best-priced vehicles for buyers with fair-price validation and negotiation leverage
Purpose
Deal Finder helps dealers source the best-priced vehicles for buyers — pulling the 10 cheapest matching units in the customer's market, scoring each on price vs market, miles vs median, DOM, and distance, then recommending the top 3-5 with a composite deal score. It arms both the dealer and the customer with market context before setting foot on a lot.
The Negotiation Leverage Report workflow is particularly powerful: it pulls listing history for the target VIN (how long has it been listed, has the price dropped?), decodes exact specs, gets ML market value, and finds competing units by name so the dealer can say 'I can get a comparable one at AutoNation for $1,200 less.'
How It Works
Execution flow. MCP tool calls are shown inline on each step.
search_active_carsSearch lowest-priced matching units by YMMT in customer's ZIP, sorted by price ascending. Pull market stats for context.
predict_price_with_comparablesRun ML price prediction on the candidate VIN to get predicted market value. Compare asking price: >3% below = favorable, ±3% = at market, >3% above = overpaying.
get_car_historyPull listing history (DOM, price drops, dealer hops). Find competing units by name. Calculate suggested offer price: predicted value minus 3-5% negotiation margin.
get_sold_summaryAssess months of supply from active count and 30-day sold velocity. Count price-drop listings as softening signal. Deliver buy-now vs wait recommendation.
MCP Tool Calls
| Tool | Calls | Purpose |
|---|---|---|
search_active_cars | 2-3 | Lowest-priced units + market stats + competing alternatives for negotiation |
predict_price_with_comparables | 1 | ML price prediction on candidate VIN for fair-price validation |
get_car_history | 1 | Listing history for DOM leverage and price-drop trajectory |
decode_vin_neovin | 1 | Confirm exact specs of candidate VIN for negotiation context |
get_sold_summary | 1 | 30-day sold velocity for market timing recommendation |
Example Output
DEAL FINDER RESULTS 2024 Toyota RAV4 XLE Premium AWD Customer ZIP: 85281 (Phoenix, AZ) | Radius: 100mi ════════════════════════════════════════════════ MARKET CONTEXT Total matching units: 34 | Median ask: $38,200 | Range: $35,999–$44,800 Avg mileage: 12,400 mi | Price-drop listings: 9 of 34 (26%) TOP DEALS (ranked by composite score) Rank Dealer Price Miles DOM Dist vs Median Score 1 CarMax Tempe $35,999 18,200 22 12mi -5.8% 91 ← BEST OVERALL 2 AutoNation Mesa $36,500 9,800 41 18mi -4.5% 87 3 Carvana Phoenix $36,999 14,100 8 — -3.1% 79 DEAL ASSESSMENTS #1 CarMax Tempe $35,999: Best overall value — 5.8% below market, avg miles, 22 DOM. Solid pick with room to negotiate to $35,500. #2 AutoNation Mesa $36,500: Good deal — very low miles (9,800), 41 DOM means the dealer is motivated. Offer $35,800. #3 Carvana $36,999: Fair price — only 8 days listed, little negotiation room. MARKET TIMING: BUY SOON 34 units supply / 18 units sold last 30d = 1.9 months supply. 26% of market has dropped price — softening slightly but still seller's market.
Cost Estimate
50 deal searches/month ≈ $1 – $5.50/month
Limitations
- US market only for full workflow. UK dealers can use search_uk_active_cars for deal search — fair price validation is comp-median based.
- Finance/lease comparison data availability varies by dealer — not all listings include structured finance terms.
- Market timing advice is based on supply/demand ratios — cannot predict future price movements.
- Negotiation leverage report requires a specific VIN from the target dealer — cannot be run on YMMT alone.