To connect TriNet and TIDY you need your credentials, here's how to get them:

1. Fill out a request form. You can find instructions on filling this out here
2. After receiving confirmation, sign in to the TriNet developer portal
3. Click on your email address
4. Select Apps in the dropdown menu
5. Hover over an app in the My Apps table
6. Open the relevant row
7. Copy the API Key
8. Copy the Secret

Now that you have that information, head to TIDY: 

1. Click on Integrations on the left menu bar
2. Click on Add Integration
3. Search for TriNet
4. Paste your TriNet information into the correct fields
5. Done! Integration will begin and your TriNet information will be synced with TIDY.