How many api requests?

[Archey]

Is there a limit to how many requests you can make before the API starts giving you a 503 error? If so, now many per minute(s)

[slazer2k5]

Don't know the requests per minute but it should be 100,000 per day:

You are limited to one hundred thousand (100,000) calls to the Steam Web API per day. Valve may approve higher daily call limits if you adhere to these API Terms of Use.

Source: http://steamcommunity.com/dev/apiterms

[heffebaycay]

Originally Posted by Archey

Is there a limit to how many requests you can make before the API starts giving you a 503 error? If so, now many per minute(s)

If you are talking about the Steam Community xml feeds, then yes, they are now rate limited. From what I read, Valve plans on deprecating these feeds and the new rate limit is there to reduce the load on Steam Community.

Unfortunately not all the community xml feeds have a matching WebAPI, so moving from community XMLs to webAPIs isn't always possible... but I guess they'll add the missing WebAPIs eventually. In the meantime, caching the information you need in these feeds is the way to go.

[Archey]

Originally Posted by heffebaycay

If you are talking about the Steam Community xml feeds, then yes, they are now rate limited. From what I read, Valve plans on deprecating these feeds and the new rate limit is there to reduce the load on Steam Community.

Unfortunately not all the community xml feeds have a matching WebAPI, so moving from community XMLs to webAPIs isn't always possible... but I guess they'll add the missing WebAPIs eventually. In the meantime, caching the information you need in these feeds is the way to go.

is the limit on the XML feeds public?

[Archey]

Is the amount of timer between each request avaliable?