Up and running in minutes
Evaluating the API costs nothing: a free key, 500 calls, full documentation and Postman collections. Here is the whole journey.
Request a free trial Speak to an expertThe path
Three steps to your first response
Request a trial
Sign up for a free trial and receive an API key with 500 calls. No card details, no contract, no sales call required.
Authenticate
Every request carries your key as a single query parameter. No OAuth dance, no token refresh, nothing to build before you start.
Query
Copy any example from the documentation or import the Postman collection. Your first real market answer arrives in milliseconds.
While you evaluate
What to try with 500 calls
Search your patch
Every car for sale within 25 miles of your office, faceted by make. One call.
Price a real car
Predict a value for a VRM you know, then pull its comparables and judge the evidence yourself.
Profile a competitor
A dealer’s full stock with days-on-market statistics. Two calls.
When you scale
From trial to production
Production plans are self-serve subscriptions with published pricing; see the pricing page for API tiers, or talk to us about volume and custom feeds.
If your use case outgrows per-call APIs, the same data is available as bulk feeds delivered to your warehouse on your schedule.
FAQ
Common questions
Does the trial really cost nothing?
Nothing, and it does not auto-convert. You get 500 API calls with no card details and no contract; when they run out you choose whether to subscribe.
How does authentication work?
A single api_key query parameter on every request. There is no OAuth flow or token refresh to build, which is why most developers make their first successful call within minutes of receiving a key.
What if I need more than the API offers?
High-volume use cases usually move to data feeds: the same data, delivered in bulk to your warehouse on your schedule. Trials are available for feeds too, ask us for a sample.
Where do I find the technical documentation?
Everything lives at docs.marketcheck.com, including full parameter references, example requests and Postman collections you can import and run against your trial key.
Partners & clients
Get started
Test our data.
Try the API for free or receive a test of the feed data.