Tumblr Integration: What is best practice for caching data from API?

I have a websites that has a blog section, which pulls the data using the Tumblr API.

My client just updates her Tumblr blog and the website would just access the Tumblr API to popula开发者_C百科te the blog page on the website. Also, any blog items tagged as news will show up on the home page.

I could be wrong, but I am sure there are limits to the rate of accessing the API, and so I am thinking I should somehow store the data in a database or even json file.

What would be a good way to "cache" the Tumblr API data so that I am not accessing the API everytime somebody views the website?

thank you!

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phpTumblr has a caching class (class.read.tublr.cache.php)