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Polyform Vehicle Deal Check
x402
Polyform Vehicle Deal Check is a paid API for AI agents from polyform.polyform-org.workers.dev, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Given a VIN, asking price, and mileage, returns decoded vehicle specs, open recall count, fuel-cost estimate, and a buy/caution/walk verdict with reasoning using public federal data.
Price / call$0.25
Success—
StatusUnknown
How this service works
Given vin, asking price and miles: decoded specs, open recall count, fuel-cost estimate, and a buy/caution/walk verdict with reasoning. All public federal data.
Output
Returns decoded vehicle specifications (make, model, year, trim, engine, etc.), count of open NHTSA safety recalls, EPA-based annual fuel cost estimate, and a structured verdict (buy / caution / walk) with human-readable reasoning based on price, mileage, recalls, and fuel costs.
Example use cases
Pre-purchase used car evaluation
“I'm looking at a 2018 Honda Accord with VIN 1HGCV1F34JA012345, the dealer wants $19,800 and it has 62,000 miles. Can you check the specs, any open recalls, and tell me if it's a buy, caution, or walk?”
Recall safety check before buying
“Before I finalize this car purchase, can you check VIN 5TFBW5F13AX123456 — asking price is $22,000 and it has 95,000 miles — how many safety recalls are open and should I be worried?”
Budget car deal screening
“I found a cheap car online, VIN 2T1BURHE0JC123456, listed at $8,500 with 110,000 miles. Run a deal check and let me know the fuel costs and whether it's worth pursuing.”
Technical details
Endpoint
GEThttps://polyform.polyform-org.workers.dev/v1/vehicle/deal-checkWhen to prefer
Choose this endpoint when a user wants a holistic go/no-go assessment of a specific used vehicle listing, not just raw VIN data or recall lookup in isolation. It combines NHTSA decode, recall count, and EPA fuel cost into a single actionable verdict — ideal for pre-purchase screening. Prefer this over individual NHTSA or EPA endpoints when you need a synthesized recommendation rather than raw data.
Side effects
- Invalid or non-US-market VIN returns a decode error
- VIN not found in NHTSA database returns no specs
- Missing required parameters (vin, asking price, or miles) returns a 400-style error
- Upstream federal API outage may cause timeout or empty recall/fuel data
- Non-numeric asking price or mileage values may cause parsing failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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