Package github.com/kuba--/cuckoo provides a Cuckoo Filter. Implementation is based heavily on "Cuckoo Filter: Better Than Bloom" by Bin Fan, Dave Andersen and Michael Kaminsky (https://www.cs.cmu.edu/~dga/papers/cuckoo-conext2014.pdf). It's pretty fast and pretty efficient with very low false positive rate.
Show HN: Cuckoo Filter implementation in Go (github.com/kuba--/cuckoo) | Heykuki News