Video Switchers & Live Production
vMix Control Software
Full vMix control via the TCP API (port 8099). Real-time PGM/PVW tally, audio, media, overlay and transport feedback — reacts instantly even when you switch directly on vMix. Uses input GUIDs so buttons keep working after a vMix restart or…
Handlers run inside Fantago — the file is a plugin, not a standalone program. Start with the free 60-day trial.
How to connect vMix to Fantago
- Open the Fantago Dashboard and click Add Device.
- Pick the vMix handler from the device type list (internal id
vmix). - Enter the IP address of your vMix, then set protocol TCP and port
8099. - Save and connect. Fantago starts polling the device and publishes its feedback variables, ready to use in panels, sequences and logic flows.
- Drag the actions below onto a panel button, a Stream Deck key, a schedule or a logic flow node.
| Protocol | TCP |
|---|---|
| Default port | 8099 |
| Handler version | 2.0.1 |
| Author | Fantago |
| Internal ID | vmix |
Description & Instruction
Setup: Enter the IP of the PC running vMix, port 8099, and enable Persistent Connection. Run Sync Inputs once to load your sources.
Feedback variables (device shown as
devicename): {{devicename_pgm_input_guid}} / {{devicename_pvw_input_guid}} (program/preview by GUID), {{devicename_input_<guid>_muted}}, {{devicename_input_<guid>_status}} (PLAY/PAUSE), {{devicename_overlay_1_active}}…_4_active, and {{devicename_recording}}, {{devicename_streaming}}, {{devicename_external}}, {{devicename_multicorder}}, {{devicename_ftb}}.
Command Integration Guide
This guide explains how to send specific commands to the vMix handler.
Generic Command Format (vMix Function API):
The handler sends vMix Function API commands, which are text-based commands followed by parameters (if any).
FUNCTION Cut Input=1(Perform a Cut to Input 1)FUNCTION Fade Duration=1000(Perform a Fade transition with 1000ms duration)FUNCTION AudioMute Input=1(Toggle mute for Input 1)FUNCTION ScriptStart Value=MyScript(Start a vMix script named 'MyScript')
Integration Examples (assuming device name "VMIX_PRO"):
Via HTTP GET:
http://<FantaGo_IP>:<HTTP_PORT>/sendTo/VMIX_PRO?cmd=FUNCTION%20Cut%20Input=1
Via TCP/UDP Listener:
VMIX_PRO:FUNCTION Cut Input=1
Remember to URL-encode the command string for HTTP GET requests if it contains special characters.
vMix control — frequently asked questions
Does Fantago support vMix?
Yes. Fantago includes a ready-made vMix handler (version 2.0.1) that talks to the device over TCP, default port 8099. It is bundled with every licence and with the 60-day free trial — there is no per-device fee.
What protocol does the vMix handler use?
TCP, default port 8099. Fantago connects straight to the device over your production network, so no gateway, middleware or vendor software is needed in between.
Can I control vMix from a Stream Deck?
Yes. Every vMix action can be mapped to an Elgato Stream Deck key, to a button on a custom Fantago touch panel, to a timed schedule, or to a logic flow triggered by another device — including devices from a different manufacturer.
Can I modify the vMix handler?
Yes. The handler is a plain JavaScript file (vmix.js) that you can download from this page, edit and drop back into Fantago. You can also write your own handler from scratch — see the Developer Guide.
Control vMix from a single interface
Fantago drives vMix alongside 50+ other broadcast, lighting, audio and smart home devices — from custom touch panels, an Elgato Stream Deck, a schedule or a logic flow. One-time licence, no subscription, runs offline.