Newsdata.io provides free access to news, articles, and blog data from various sources. It offers Canada News API that can be used to retrieve news articles published in Canada.

They also provide a sub-category of APIs which are mentioned below:
1. Canada Top News API,
2. Canada Sports News API,
3. Canada Technology News API,
4. Canada Business News API,
5. Canada Science News API,
6. Canada Entertainment News API,
7. Canada Health News API,
8. Canada World News API,
9. Canada Politics News API,
10. Canada Environment News API,
11. Canada Food News API.

To access Canada news articles, you would need to make a request to Canada News API with the parameter 'CA' which can then be integrated into your website or application.