OEM Window Sticker API & VIN Data for Dealer Platforms

Window Sticker API at a glance

Original OEM Monroney PDFs

Stickers are pulled live from manufacturer systems, supplemented by a growing archive of previously retrieved documents — never reconstructed facsimiles. The API detects the placeholder "no sticker" PDFs some OEM systems return for unknown VINs and reports them as unavailable, so an available response always means a genuine Monroney document.

Supported vehicle brands

5 brands across five manufacturer systems:

• GM (Chevrolet, GMC, Buick, Cadillac)
• Stellantis (Chrysler, Dodge, Jeep, Ram)
• Ford / Lincoln
• Hyundai
• Genesis

Toyota, Lexus, and Kia retired public sticker access in 2026; the availability check identifies unsupported brands instantly so your UI can degrade gracefully.

Bulk VIN provisioning and availability checks

Built for nightly feed runs: POST a VIN list and get per-VIN support back. The instant WMI-level check handles up to 500 VINs per request; live OEM probing (up to 25 VINs per request) confirms an actual sticker exists before you render a button. Add decode=true for NHTSA-powered year/make/model/trim on every VIN. Single-VIN checks use format=check on the sticker endpoint, so your UI never shows a dead sticker link.

Authentication and integration

Key-based auth (x-api-key header) over plain JSON/HTTPS — no OAuth ceremony. A representative request:

curl -X POST "https://www.carwhere.com/api/dealer/v1/provision" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"vins": ["1GCUDGED5PZ123456", "5NMJBCDE6TH775381"], "decode": true}'

Response:

{
  "mode": "wmi",
  "results": [
    {
      "vin": "1GCUDGED5PZ123456",
      "status": "supported",
      "brand": "Chevrolet",
      "vehicle": { "year": "2023", "make": "CHEVROLET", "model": "Silverado 1500", "trim": "LT" }
    },
    {
      "vin": "5NMJBCDE6TH775381",
      "status": "supported",
      "brand": "Hyundai",
      "vehicle": { "year": "2026", "make": "HYUNDAI", "model": "Tucson", "trim": "SEL" }
    }
  ]
}

Full endpoint reference with request/response examples for every endpoint: developer docs → · Prefer not to handle PDFs? A two-line embeddable widget drops onto any vehicle detail page.

Data sources and verification

Partner licensing and pricing

Frequently asked questions