Post your inventory on SalesOrBuys. Free.
For licensed partnership dealerships that already have their own website and systems. Register your dealer licence, get verified, and list up to 50 cars at no cost — by hand or through your own API key.
What the account includes
Free to register and post
Up to 50 live listings. No subscription, no card required to start.
Licence-verified
We check your dealer licence before your first car goes live — that is what makes the marketplace worth listing on.
Your own API key
Push inventory from the system you already run. Post, update, mark sold — programmatically.
Leads land with you
Inquiries, test drives and trade-in offers on your cars come straight to your dashboard.
Boost only if you want
Save a card and pay per boost to reach the top of search or the homepage. Never a recurring charge.
Post from the system you already use
Every verified posting account can mint its own API key from the dashboard. Point your DMS, feed tool or website at it and your inventory stays in step automatically — no double entry.
# Post a car
curl -X POST https://salesorbuys.com/api/partner/v1/vehicles \
-H "x-api-key: sob_mpa_..." \
-H "Content-Type: application/json" \
-d '{
"vin": "1HGCM82633A004352",
"make": "Honda", "model": "Accord", "year": 2021,
"price": 18995, "mileage": 42100,
"imageUrls": ["https://your-site.com/accord-1.jpg"]
}'
# Drop the price, then mark it sold (id or VIN both work)
curl -X PATCH https://salesorbuys.com/api/partner/v1/vehicles/1HGCM82633A004352 \
-H "x-api-key: sob_mpa_..." \
-H "Content-Type: application/json" \
-d '{ "price": 17995 }'Full endpoint reference, scopes and your key live in the dashboard once your licence is verified.
Register your posting account
Free, and it takes a couple of minutes. A valid dealer licence is required — we verify it before your first listing goes live.