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Documentation Index

Fetch the complete documentation index at: https://smartcar.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

The Compatibility API tells you which signals and commands each vehicle supports. The data comes from real connections on the Smartcar platform and updates daily.

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Base URL

https://compatibility.api.smartcar.com/v3/compatible-vehicles

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Quick reference

  • No authentication required. The endpoint is public — no credentials or headers needed.
  • Filter with JSON:API bracket syntax: ?filter[make]=TESLA, ?filter[region]=US, ?filter[powertrainType]=PHEV. Flat parameters (e.g. ?make=TESLA) are silently ignored.
  • Returns the full matched dataset in a single response. Pagination parameters are not honored — cache results locally and refresh daily.
See Compatible Vehicles for the full parameter list, response schema, and examples.

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Browse on the web

If you’d rather not hit the API, you can browse the full dataset and download it as a CSV:

Compatible Vehicles on smartcar.com

Filter by make or region and export the full compatibility matrix.
If you need the previous Compatibility Matrix experience, use the legacy matrix.