Christian Heilmann

⚡️New API limit policy for Yahoo made easier with the rate limit calculator

Wednesday, April 1st, 2009 at 12:49 pm

Today the rate limitations of Yahoo APIs has been made much easier

The access allowance to the APIs is determined by your IP. Say you have the IP of 10.37.129.255 then you calculate your access like this:

  • Take the IP and remove all the dots, so 10.37.129.255 becomes 1037129255.
  • Divide the result by 2009
  • Divide this result by 4
  • Divide this result by 1 (this is to make it round up nicely, some computers have bugs when you don’t do this!)

To make this even easier, I’ve written a calculator API:

API limit calculator

You can use this to wrap it around the functionality you want to build:




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