Overview

V2Kit is a lightweight and extensible Python toolkit for working with V2Ray proxy configurations and subscriptions. It provides a clean API for common operations such as protocol detection, configuration validation, config relabeling, and subscription encoding/decoding. The project is designed with simplicity, predictability, and composability in mind, making it suitable for automation scripts, proxy pipelines, networking tools, and future extensions around V2Ray ecosystem utilities.

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Installation

Source Code

• Download Version 0.5 or Latest Source
• pip install .

PyPI

• Check Python Packaging User Guide
• pip install v2kit==0.5

Supported Protocols

V2Kit currently supports the following protocols:

Protocol	Detection	Parsing	Relabeling	Config Model
VMESS	✅	✅	✅	✅
VLESS	✅	✅	✅	✅
Trojan	✅	✅	✅	✅
Shadowsocks	✅	✅	✅	✅
SOCKS	✅	✅	✅	✅
HTTP	✅	✅	✅	✅

Usage

URI Utilities

from v2kit import (
    decode_subscription,
    encode_subscription,
    is_vmess,
    parse,
    relabel,
)

uri = "vmess://eyJhZGQiOiIxMjcuMC4wLjEiLCJwcyI6Im9sZCJ9"

new_uri = relabel(uri, "Germany-1")

if is_vmess(new_uri):
    print("VMESS URI detected")

config = parse(new_uri)

config.update_label("Germany-2")

subscription = encode_subscription([config])

uris = decode_subscription(subscription)

Configs

from v2kit import VMESSConfig

config = VMESSConfig(
    uuid="550e8400-e29b-41d4-a716-446655440000",
    address="example.com",
    port=443,
    label="Germany-1",
)

uri = config.to_uri()

Issues & Bug Reports

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• Please complete the issue template

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

0.5 - 2026-07-31

Added

• encoded_label property
• uri_label property

Changed

• encode_subscription function modified
• parse function modified
• extra property modified
• update_extra method modified
• to_uri method modified
• to_dict method modified
• Protocol enum updated
• Scheme bug fixed
• VMESS parser bug fixed
• Test system modified

0.4 - 2026-07-02

Added

• HttpConfig class

Changed

• parse function modified
• README.md updated
• Test system modified

0.3 - 2026-06-16

Added

• Logo
• SocksConfig class
• is_socks function

Changed

• README.md updated
• Test system modified
• Dependencies structure modified
• All config models moved to models folder

0.2 - 2026-06-04

Added

• VMESSConfig class
• VLESSConfig class
• TrojanConfig class
• ShadowsocksConfig class
• V2kitError class
• V2kitValidationError class
• V2kitParseError class
• parse function

Changed

• README.md updated
• Test system modified
• is_vmess function config parameter renamed to uri
• is_vless function config parameter renamed to uri
• is_trojan function config parameter renamed to uri
• is_shadowsocks function config parameter renamed to uri
• encode_subscription function configs parameter renamed to entries

0.1 - 2026-05-16

Added

• is_vmess function
• is_vless function
• is_trojan function
• is_shadowsocks function
• relabel function
• encode_subscription function
• decode_subscription function