C.H. Robinson Authentication API
C.H. Robinson uses OAuth v2.0 to secure connections to its APIs. oAuth v2 works by delegating user authentication to the service that hosts the user account and authorizing third-party applications to access the user account. For a user to authenticate and use any of C.H. Robinson's APIs, the user must [generate a token](https://developer.chrobinson.com/api-reference#operation/Generate%20Token). **Special Note** Generated tokens are valid for 24 hours. Users should only be hitting the C.H. Robinson authentication endpoint once every 24 hours. Calling the authentication endpoint multiple times within the same 24 hour period may result in users being subjected to rate limiting. Click the image to open it in a new tab to resize it.