I am writing an RSS reader. I want the user to be able to search the RSS feeds on the Internet for keywords and subscribe to them. I am currently using the Google Feed API, which allows you to send text requests and receive all relevant RSS feeds from the Internet. Then I can take the feed URL and parse it for the user to read / subscribe, keeping it / share / and more.
Are there any other services, for example, offered by Google? I'm going to collect some more RSS feed search providers, so the app will not rely solely on Google.
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