# DenchiSoft/VTubeStudio

VTube Studio API Development Page

Repository: https://github.com/DenchiSoft/VTubeStudio
Canonical: https://ross.abutalabs.com/products/vtubestudio
Language: C#
License: MIT
License Family: permissive
Last push: 2026-09-02T08:39:56+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 35, longevity 100
- inputs: {"age_days": 2488, "days_push": 0, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1285, forks 141 (observed 2026-09-03T02:15:05.519321+00:00)

## What it is
The official API development documentation for VTube Studio, a face-tracking VTuber application. It specifies the WebSocket-based plugin API (plus UDP discovery and blendshape data feeds) that lets developers build plugins to control models, trigger hotkeys, and read tracking data.

## Use cases
- build a VTube Studio plugin
- control a Live2D model programmatically
- get face tracking data from VTube Studio
- trigger hotkeys and expressions via API
- integrate Twitch or chat events with my VTuber model
- load and move VTS models from code
- authenticate with the VTube Studio API

## When to choose
- you are developing a plugin or integration for VTube Studio
- you need the authoritative API reference for model control, hotkeys, expressions, or events
- you want to receive tracking or blendshape data from the iOS app

## When to avoid
- you just want to use VTube Studio as a streamer without coding
- you need a ready-made plugin rather than API documentation
- you are building VTuber software for a different app like Animaze or Warudo

## Facets
- artifact type: learning-resource
- maturity: active
- function: api-framework, websocket, auth, documentation, plugin-system
- domain: developer-tools, apis, gaming-tools, entertainment, media
- platform: cross-platform, windows
- tags: vtuber, api-documentation, face-tracking, live2d, plugin-api, streaming, websocket-api, vtube-studio, macos, ios, web-server

## Member repositories
- DenchiSoft/VTubeStudio (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:05.519321+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 2026-08-30T05:02:53.332465+00:00, confidence not recorded.
  - readme: https://github.com/DenchiSoft/VTubeStudio (fetched 2026-09-03T02:15:05.519321+00:00, sha 6a6e39ab1b75)
- Data as of 2026-08-30T08:39:29.467469+00:00.