Auto.dev vs CarsXE: dealer listings with a free MCP or vehicle data by VIN or plate
Auto.dev is a REST API for active vehicle listings from US dealers, part of a wider set of automotive APIs (VIN decode, photos, specs, recalls, payments). CarsXE is a vehicle data API for VIN specs, market value, history, recalls, plates and images; it has no cars-for-sale listings endpoint.
The short answer
- Auto.dev: Getting a small project or AI agent searching US dealer listings quickly, with a free tier and a ready-made MCP server.
- CarsXE: Looking up data about a specific vehicle (VIN, plate, value, recalls), not finding cars for sale.
Side by side
| Auto.dev | CarsXE | |
|---|---|---|
| Searches | Active listings from US physical and online dealers, filtered by make, model, year, price, mileage, state, CPO status and ZIP plus distance. | Vehicle data by VIN, plate or year/make/model; not listings for sale. |
| Returns | Listing records with VIN, year, make, price, location and created/updated dates; the full field schema was collapsed in the public docs, so dealer contact fields could not be confirmed. | Specs, market values (wholesale and retail by condition tier), history, recalls, images and related vehicle data. |
| Before the first call | An Auto.dev account and API key from the dashboard; the free plan needs only email verification, no card. | A CarsXE account and API key. |
| Free | Free plan with 1,000 API calls a month at 5 requests a second, no card required (listings capped at 20 per page). | Sandbox plan at $0 with up to 100 API calls for the life of the account. |
| Paid | Growth plan $299 a month; Scale plan $599 a month. | Starter plan $40.83 a month, billed annually; market value, history and lien checks are billed at overage rates. |
| Limits on keeping or showing results | Data is licensed solely for internal business purposes; no reselling or redistributing to third parties and no derivative databases or competing data products. No clause specifically on caching. | Not stated on its pages |
| Coverage | United States dealers. | Varies by endpoint; market values are strongest in the United States. |
| MCP server | Official MCP server at https://mcp.auto.dev/mcp (OAuth sign-in or API key); listing search tool available on the free plan. | Official hosted MCP server at https://mcp.carsxe.com/mcp (API key in an X-API-Key header). |
Where Openpath fits
Openpath has no car listings yet. Cars are on its roadmap, from sellers and dealers who list them themselves. Get listed.
Questions people ask
What do I need before I can use Auto.dev?
An Auto.dev account and API key from the dashboard; the free plan needs only email verification, no card.
Is Auto.dev free?
Free plan with 1,000 API calls a month at 5 requests a second, no card required (listings capped at 20 per page).
What do I need before I can use CarsXE?
A CarsXE account and API key.
Is CarsXE free?
Sandbox plan at $0 with up to 100 API calls for the life of the account.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Auto.dev, read on October 15, 2026:
- docs.auto.dev/v2/getting-started: “1,000 API calls per month, no card required”
- docs.auto.dev/v2/getting-started: “$299/month with unlimited calls”
- docs.auto.dev/v2/getting-started: “$599/month with enterprise features”
- docs.auto.dev/v2/getting-started: “Free needs no checkout — verify your email address and your API key is ready.”
- docs.auto.dev/v2/products/vehicle-listings: “Get comprehensive vehicle listings from U.S. physical & online dealers in seconds.”
- docs.auto.dev/v2/products/vehicle-listings: “filter by make, model, year, price, mileage, and more”
- docs.auto.dev/v2/mcp-quickstart: “claude mcp add --transport http auto-dev https://mcp.auto.dev/mcp”
- auto.dev/terms: “You receive a limited, non-exclusive license to use Automotive Data solely for your internal business purposes”
- auto.dev/terms: “You may not create derivative databases or competing data products”
- auto.dev/terms: “Resell, redistribute, or sublicense our Automotive Data to third parties”
- auto.dev/pricing: “Free $0 per month Get 1,000 API calls per month for evaluation and small projects”
CarsXE, read on October 15, 2026:
- carsxe.com/pricing: “Up to 100 API calls lifetime”
- carsxe.com/pricing: “Check overage pricing”
- carsxe.com/vehicle-market-value: “Wholesale and retail values by condition tier, each split into a base value plus mileage, option and regional adjustments”
- carsxe.com/vehicle-market-value: “Valuations are strongest in the United States.”
- carsxe.com: “Connect the hosted CarsXE Model Context Protocol (MCP) server at https://mcp.carsxe.com/mcp.”
- carsxe.com/pricing: “$40.83 /mo, billed annually”