# tuic-protocol/tuic

Delicately-TUICed 0-RTT proxy protocol

Repository: https://github.com/tuic-protocol/tuic
Canonical: https://ross.abutalabs.com/products/tuic
License: GPL-3.0
License Family: copyleft
Last push: 2025-05-15T07:03:37+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 21, release rhythm 8, longevity 100
- inputs: {"age_days": 1715, "days_push": 475, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3263, forks 517 (observed 2026-08-28T04:07:52.841815+00:00)

## What it is
TUIC is a standardized, implementation-agnostic network proxy protocol specification for relaying TCP and UDP traffic over QUIC with 0-RTT connection establishment. This repository contains the protocol specification (latest version 0x05) and a list of third-party client and server implementations, not an official implementation itself.

## Use cases
- proxy tcp and udp traffic with 0-rtt handshake
- udp proxying with full cone nat support
- build a quic-based proxy client or server
- implement the tuic protocol in my own proxy tool
- multiplex proxy connections over quic
- circumvent network restrictions with a fast proxy protocol

## When to choose
- you need a QUIC-based proxy protocol with 0-RTT setup and full cone NAT UDP support
- you are implementing a proxy client or server and want a standardized, extensible protocol spec
- you need stream multiplexing and connection migration in a proxy

## When to avoid
- you need a ready-to-run proxy binary - this repo is only the specification, use mihomo, sing-box, or another listed implementation
- you need a simple TCP-only proxy without QUIC overhead
- you require guaranteed compatibility across protocol versions, since versions are not interoperable

## Facets
- artifact type: library
- maturity: active
- function: proxy, networking, security
- domain: networking, privacy, censorship-circumvention
- platform: cross-platform
- tags: quic, proxy-protocol, 0-rtt, udp-proxying, tcp-proxying, protocol-specification, nat-traversal

## Member repositories
- tuic-protocol/tuic (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:52.841815+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:12:50.229789+00:00, confidence not recorded.
  - readme: https://github.com/tuic-protocol/tuic (fetched 2026-08-28T04:07:52.841815+00:00, sha 43c03eca3c22)
- Data as of 2026-08-30T08:39:29.467469+00:00.