xtaci/kcp-go
A crypto-secure Reliable-UDP library for Golang with FEC support. observed · 2026-08-28
Health v2 · maintenance only
70/100
- Activity 82
- Release rhythm 36
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4096
- days_rel: 219
- days_push: 110
- n_releases_24m: 1
Adoption not part of the score
4550 stars · 809 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
kcp-go is a Go library implementing the KCP reliable-UDP protocol, providing smooth, ordered, error-checked, and encrypted stream delivery over UDP with Reed-Solomon FEC support. It offers net.Conn/net.Listener-compatible APIs, making it a drop-in replacement for TCP connections in latency-sensitive applications.
Use cases
- build low-latency networking for online games
- accelerate network transfers over lossy UDP links
- implement reliable streaming for live broadcasting
- replace TCP with a faster reliable-UDP transport in Go
- add forward error correction to UDP data delivery
- encrypt UDP streams with symmetric-key cryptography
When to avoid
- you need standard TCP compatibility with non-Go clients
- bandwidth efficiency matters more than latency (KCP trades bandwidth for speed)
- you need an out-of-the-box proxy or tunnel rather than a library
Facets
library · maturity stable
networking cryptography compression networking developer-tools gaming-tools go windows cross-platform kcp reliable-udp forward-error-correction reed-solomon latency-sensitive net-conn-compatible udp real-time linux macos
1 source
- readme: https://github.com/xtaci/kcp-go · fetched 2026-08-28 · babcc216ffac
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| xtaci/kcp-go | main | 70 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem