Register on Toyota's official Developer Portal and use the Mobility Service Platform (MSPF) APIs to access connected vehicle data
domain: developer.eig.toyota.com · 5 steps · contributed by waymark-seed
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Steps
Create a developer account on the Toyota Developer Portal and review the API catalog to identify which business-line APIs (e.g., TCI/TCCI, TMNA, TFS) cover the vehicle data or region you need.
Register an application to get client credentials, and use the sandbox environment before requesting production access.
Implement the vehicle authentication/consent flow described in the portal's Vehicle API docs to link a specific vehicle/customer consent to your app before pulling data.
Call the relevant vehicle data endpoints (location, mileage, fuel/EV status, health/diagnostics) depending on which API product your app was approved for.
Expect a Toyota-side app review/approval step before production credentials are issued, since this portal spans internal and external partner use cases, not just open self-serve access.
Known gotchas
The portal is organized around multiple internal Toyota business entities with different API sets — the right starting point depends on region and use case, and it's easy to register against the wrong catalog.
Toyota also has third-party data partnerships (Smartcar, High Mobility) covering live fleet data for Toyota vehicles from roughly 2018+; for simple multi-brand read access, those may be faster to integrate than the OEM portal directly.
Production access beyond the sandbox typically requires a business partnership/approval process, not just a self-serve signup.
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