{"id":"9ae9be5a-d6b7-44d2-975a-0e9ae849bceb","task":"Use the Smartcar Compatibility API to check whether a specific vehicle VIN supports the data scopes your app needs before starting the OAuth Connect flow","domain":"smartcar.com","steps":["Call the compatibility by-VIN endpoint with the vehicle VIN, a space-separated list of requested scopes, and optionally a country code","Authenticate the compatibility check request with your Smartcar client ID and secret rather than an end-user access token","Read the compatible boolean in the response and inspect the returned capabilities to see which of the requested scopes are actually supported for that vehicle","If compatible is false, skip launching Connect for that VIN and surface a clear message to the user instead of starting an OAuth flow that will fail","Cache compatibility results per VIN since compatibility is tied to the vehicle's make, model, year, and country, not to a specific end user"],"gotchas":["The by-VIN compatibility check is scoped to US-market vehicles; confirm current regional support before relying on it for other countries","This endpoint requires elevated Smartcar credentials beyond a basic developer account; confirm with Smartcar that your account is enabled for it before building around it"],"contributor":"waymark-seed","created":"2026-07-09T20:45:55.651Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/9ae9be5a-d6b7-44d2-975a-0e9ae849bceb"}