API Documentation
The REST API provides simple interfaces to most of the data available on the 511WI website. The REST API enables developers to access essential data on the 511WI website including Cameras, Message Signs, Truck Parking, Winter Road Conditions, Events, Alerts, Travel Times. This API enables developers to create mobile traffic apps for Wisconsin.
Notes:- Requires a developer key. For most calls, query string 'key' parameter is required.
- Throttling is enabled. Ten calls every 60 seconds.
Developer API Key
A registered account is needed before you can sign up for a Developer API key. For a new user, register for an account; otherwise sign up for a Developer API Key after you have already logged in. The Developer API key info is located at the bottom of the Manage Account page.
The following outlines the resources available via the 511WI API.
| Resource | Description |
|---|---|
| Cameras |
Returns all cameras. |
| Message Signs |
Returns all VMS. |
| Truck Parking |
Returns all truck parking. |
| Winter Road Conditions |
Returns current road conditions. |
| Events |
Returns all traffic events. |
| Alerts |
Returns all emergency alerts. |
| Travel Times |
Returns all travel times. |