How can I filter for specific source(s) only?

You can get the currently available sources by using https://data.neticle.com/22.09/sources endpoint (https://data.neticle.com/docs/22.09#sources:listing-content-sources).

You can check them in the documentation as well: https://data.neticle.com/docs/22.09#mentions:listing-mentions-request-sourcegroup

The most commonly used ones are (ID - Source):

• 6 - Forum
• 9 - Article
• 14 - Facebook
  • 31 - only Facebook page posts
  • 32 - only Facebook page post comments
  • 33 - only Facebook page post comment replies
• 18 - Twitter
• 25 - Instagram
• 26 - TikTok

You can have multiple sources set in a query, for example to have all Facebook and Twitter mentions, but nothing other than those for keywords ID 10001 and 10002:

https://data.neticle.com/22.09/mentions?filters[keywords][0]=10001&filters[keywords][1]=10002&filters[sources][0]=14&filters[sources][0]=18