3-Day Pass
For creators trying it out.
$19.99/ 3 days
Renews every 3 days · cancel anytime
Get 3-Day Pass- Full access to the MCP
- Private Discord community
- Individual license · 1 machine
- Basic support
Now available · v1.0 for UEFN
Meet Plumby.
A plugin for your AI agent: MCP tools and skills that let it build UI, materials, models and Verse in UEFN.
Why Plumby
The official MCP connects. Plumby finishes.
Epic's free UEFN MCP gives your agent access to the editor. Plumby works alongside it and adds the build pipelines on top.
Official UEFN MCPby Epic
Plumbyon top of it
Connection
Connects your AI agent to the UEFN editor
Works with Claude Code, Codex and Cursor
Build pipelines
UI 1:1 from a screenshot
Materials matched to a reference
Models from a view sheet, imported with LODs
Rig and animation
VAT crowds
Niagara VFX templates
Verification
Renders and measures every result (IoU, colour ΔE)
Fixes what's off and measures again
Verse checked against your UEFN version, then compiled
Reliability & support
Large batches that resume after a crash
UEFN knowledge base, refreshed each release
Private Discord with the video course
Price
Free
From $19.99
Watch the demo
Watch it build.
Pricing
Pick a plan. Build without limits.
Monthly Most popular
For creators ready to grow.
$59.99/ month
Renews monthly · cancel anytime
Get Monthly- Full access to the MCP
- Private Discord community
- Individual license · 1 machine
- Priority support
- 1 call per week
Yearly Best value
For established creators.
$499.99/ year
Renews yearly · cancel anytime
Get Yearly- Full access to the MCP
- Private Discord community
- Individual license · 1 machine
- Premium support
- 3 calls per week
Lifetime updates
Secure checkout
FAQ
Questions, answered.
What is an MCP?
MCP (Model Context Protocol) is the standard way AI agents connect to external tools. Plumby is an MCP server that lets Claude Code, Codex or Cursor build inside UEFN.
What do I need?
Windows 10/11, UEFN with Python enabled, and Claude Code, Codex or Cursor on your own paid plan. Blender is only needed for modelling.
Does it work with Epic's official UEFN MCP?
Yes, they run side by side. Epic's MCP connects your agent to the editor, and Plumby adds the build pipelines on top.
Is it safe to use on my project?
Large changes run in crash-safe batches and imports are checked before they land. As with any editor tool, keep a backup or use version control.
What happens after I subscribe?
You get the installer and an invite to the private Discord, where a bot gives you the role that unlocks the course. After installing, run "plumby status" to confirm it is connected.
Do plans renew automatically?
Yes. Cancel anytime and keep access until the end of the period you paid for.
What happens when my plan ends?
Your access to the tools, the Discord and the course stops until you renew. Everything you built stays in your project.
How many computers can I use? Can my team share it?
Each license covers one person on one machine. For teams, contact sales for multi-seat licenses.
Not sure it fits your project?Book a free 20-minute call.
Book a call