How do I get Reddit API keys?

Reddit API keys are the OAuth 2.0 client ID and secret you create by registering an app at reddit.com/prefs/apps. You exchange them for a bearer token, then send that token on every request. New commercial apps must also be approved under Reddit's Responsible Builder Policy before they get access. Non-commercial use is free under standard limits; commercial use is priced at $0.24 per 1,000 calls. Reddit also enforces a descriptive User-Agent on every request. SocialCrawl reads public Reddit data with just an x-api-key: no OAuth app to register, no token refresh loop, and no Responsible Builder review. The subreddit endpoint returns posts in the unified schema.