Is there a free trial?

Yes. Start a free 3-day trial from your account at codefizz.dev/account, no credit card required. The trial unlocks the full Pro plugin for UE 5.6, 5.7 and 5.8 on one machine. When it ends, upgrade to a paid plan and the same key keeps working with five machine seats. There is also a separate free, open-source community edition (Unreal MCP).

Which Unreal Engine versions are supported?

UE 5.6, 5.7 and 5.8 on Win64. Each release ships as a separate binary plugin matched to the engine ABI, and the cfa CLI downloads the build that matches the engine you point it at. Future engine versions are added as they release.

Which platforms are supported?

Right now, Windows 64-bit only. The plugin is built and tested on Windows for this first release. Linux and Mac support are on the roadmap and will be added when there is clear demand from paying customers. I would rather wait until I can properly test those builds end to end than ship binaries I have not run myself. If you are on Mac or Linux and would buy the plugin today, drop a note in Discord or send me an email. That is how the priority for adding those platforms gets set.

Do I need a license key, and how do I enter it?

Activate from the CLI with your CodeFizz website account. Install or update the free cfa CLI, run cfa login, and sign in in the browser. That machine is activated and the editor plugin reads the same sign in, with nothing to paste inside Unreal. Offline grace still applies. A license key remains under License and billing for recovery and older cfa builds (cfa login --key), but new setups should use browser login only.

What MCP clients work with the plugin?

Any MCP-compatible client. The plugin exposes a TCP bridge and the Go CLI ships separately, so Claude Code, Cursor, VS Code, Gemini, and other MCP hosts all work out of the box.

Can I cancel anytime?

Yes. Open your account at codefizz.dev/account and click Manage billing to open the Polar billing portal, then cancel in one click. You keep access through the end of your billing period and stop being charged afterward.

What happens to my installed plugin if I cancel?

You keep the version you installed and it keeps working. Your license stays valid after you cancel, so the plugin does not switch off. You stop receiving new releases and you lose access to the private Discord and roadmap. The plugin you paid for is yours to keep.

Do you offer refunds?

No refunds on subscriptions, since the plugin is downloadable software you get immediately. You can cancel any time and keep access through the end of the period you have already paid for. If you ran into a real bug or a feature you reasonably expected to be there, email me and we will figure it out. Full policy on the Refund Policy page in the footer.

Why is Patron more expensive when I get the same plugin?

Patron is for people who want to influence the direction of CodeFizz Editor Agent, with voting, a private roadmap, priority answers, and direct input on new APIs. If you just need the plugin and updates, stay on Pro.

Is there a free version?

Yes. There is a free, open-source community edition (Unreal MCP) that gives you the core bridge and a basic command set, which is great for trying the workflow. The paid Pro edition is the fully maintained build with the complete toolset (Niagara, PCG, StateTree, Insights, and more), regular updates, and support. The open-source edition is linked in the footer.

Studio / team licensing?

For studios needing multiple seats, an enterprise tier is available off-platform. Contact directly for pricing.

Data Assets

Every Data Assets command in CodeFizz Editor Agent, with parameters and examples.

5 commands. Each shows its parameters and an example, and has a copyable deep link, so you (or an AI agent) can jump straight to one.

list_data_asset_classes

List all loaded UDataAsset subclasses

Lists all C++ and Blueprint UDataAsset subclasses available in the project. Use to discover which class_name to pass to create_data_asset.

Parameter	Type	Required	Description
filter	string	No	Filter by class name substring
include_abstract	bool	No	Include abstract classes (not instantiable)

example

cfa list_data_asset_classes --filter "Recipe"

create_data_asset

Create a new UDataAsset subclass instance

Creates a new data asset of the specified class at the given path. Optionally sets initial property values. Call save_asset after to persist.

Parameter	Type	Required	Description
class_name	string	Yes	UDataAsset subclass name
asset_path	string	Yes	Content path to create at (e.g. /Game/Data/DA_MyAsset)
initial_properties	json	No	JSON object of initial property name-value pairs

example

cfa create_data_asset --class-name "RecipeData" --asset-path /Game/Data/DA_NewRecipe --initial-properties '{"CraftTime":5.0}'

get_property_valid_types

Query valid dropdown values for a property slot

Returns the list of valid values for instanced/dropdown properties (e.g. Mass Entity Fragments, Traits). IMPORTANT: Always use the filter parameter, without it, some properties return 200+ entries.

Parameter	Type	Required	Description
class_name	string	Yes	Class name that owns the property
property_path	string	Yes	Property path (e.g. Traits, Fragments)
filter	string	No	Filter results by name (strongly recommended to avoid huge responses)
include_abstract	bool	No	Include abstract (non-instantiable) types

example

cfa get_property_valid_types --class-name "MassEntityConfigAsset" --property-path "Traits" --filter "Miner"

search_class_paths

Search for class paths by filter

Searches for UClass paths matching a filter. Use to find the exact class path for a type you want to reference in properties or create instances of.

Parameter	Type	Required	Description
filter	string	No	Filter by class name substring
parent_class	string	No	Only show subclasses of this parent
max_results	int	No	Maximum results
include_properties	bool	No	Include property details for each class

example

cfa search_class_paths --filter "Miner" --parent-class "MassProcessor"

list_data_assets

List data assets by path/class

Lists all data asset instances in a directory, optionally filtered by class. Returns asset paths and class names.

Parameter	Type	Required	Description
path	string	No	Content path to search
class_filter	string	No	Filter by data asset class name
recursive	bool	No	Search subdirectories
max_results	int	No	Maximum results

example

cfa list_data_assets --path /Game/Data --class-filter "RecipeData"

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Parameter

Type

Required

Description

filter

string

Filter by class name substring

include_abstract

bool

Include abstract classes (not instantiable)

Parameter

Type

Required

Description

class_name

string

Yes

UDataAsset subclass name

asset_path

string

Yes

Content path to create at (e.g. /Game/Data/DA_MyAsset)

initial_properties

json

JSON object of initial property name-value pairs

Parameter

Type

Required

Description

class_name

string

Yes

Class name that owns the property

property_path

string

Yes

Property path (e.g. Traits, Fragments)

filter

string

Filter results by name (strongly recommended to avoid huge responses)

include_abstract

bool

Include abstract (non-instantiable) types

Parameter

Type

Required

Description

filter

string

Filter by class name substring

parent_class

string

Only show subclasses of this parent

max_results

int

Maximum results

include_properties

bool

Include property details for each class

Parameter

Type

Required

Description

path

string

Content path to search

class_filter

string

Filter by data asset class name

recursive

bool

Search subdirectories

max_results

int

Maximum results