The source of u/anti-gif-bot, a bot which provides an mp4 link/mirror for gif submissions.

You can find an FAQ here: https://reddit.com/r/anti_gif_bot/wiki/index  

Some technical stuff; this bot is written in JavaScript and runs on Node.js. It uses the library snoowrap for every interaction with Reddit and the official gfycat-sdk to upload to gfycat. Every 15 seconds the bot fetches /r/all/new to get the newest submissions and filters all gif submissions. If the gif domain is known for providing an mp4 version the gif url gets converted to an mp4 link, otherwise a request to gfycat is made containing the gif url. After an mp4 link is generated (or gfycat is done converting the gif) a reply containing that link gets posted. That's it basically. There are a few more things such as a domain blacklist (the gifv-bot already covers gifs from imgur) and an internal stats counter that keeps track of the amount of submissions the bot scraped, the amount of gifs, domains that host gifs etc. Maybe I'll eventually create a website where I make these stats available. Until then I'll keep them private (well, I accidentally committed a dev version once but whatever, it's no secret) to enhance the bot and for my own curiosity.

If you find any bugs or want to submit an enhancement feel free to open an issue or submit a pull request and I'll look into it!