ue-mcp vs other Unreal MCP servers

First-party baseline

ue-mcp extends Epic's MCP.

And more...

Supports UE 5.4 to 5.8.

Documentation →

Compare columns (12/12)

Tool	Repo / URL	Language	Architecture
ue-mcp	ue-mcp.com	TS/Node + C++ bridge	WebSocket JSON-RPC to C++ plugin
Monolith	tumourlove/monolith	Pure C++	Embedded Streamable HTTP MCP server + native stdio proxy
Flop	flopperam/unreal-engine-mcp + hosted	Python + C++ plugin	Hosted Streamable HTTP to FlopAI plugin; OSS FastMCP over TCP
chongdashu	chongdashu/unreal-mcp	Python + C++ plugin	TCP socket to plugin
GenOrca	GenOrca/unreal-mcp	Python (uv) + C++ plugin	FastMCP stdio, 21 dispatcher tools, TCP/JSON to plugin with embedded Python
runreal	runreal/unreal-mcp	Node.js (npx)	Python Remote Execution, no plugin
mcp-unreal	remiphilippe/mcp-unreal	Go (single binary) + C++ plugin	HTTP to C++ plugin + Remote Control API
ChiR24	ChiR24/Unreal_mcp	TS + C++ plugin	Single 'unreal' gateway tool; native HTTP MCP in plugin or TS stdio over WebSocket
unreal-analyzer	ayeletstudioindia/unreal-analyzer-mcp	Node.js	Source code analysis only, no editor connection
Soverance	Soverance/UnrealAI	Pure C++	HTTP REST on localhost:3000, optional MCP bridge
Claireon	believer-oss/Claireon	Pure C++ (+ Python)	Embedded localhost HTTP MCP, tool_search + python_execute surface
vibeue	kevinpbuckley/VibeUE	C++ + Python skill loader	Expands UE 5.8 native MCP endpoint (ToolsetRegistry + AgentSkill)

Architecture & Install

Property	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Install method	npx ue-mcp init	Manual: zip or clone + .mcp.json	Plugin + hosted URL	Clone + uv	Release zip / Fab + uv	npx	go install + copy plugin	Copy plugin (+ npx)	Clone + npm	Copy plugin folder	Clone into Plugins	Fab / clone into Plugins
Requires C++ project	no (compiles on open)	no	no (hosted)	yes	no	no	yes	yes	no	no (compiles on open)	yes	no
Precompiled binaries	no	yes (Win64)	yes (hosted plugin)	no	yes	N/A	no	no	no	no	no	yes (Fab)
UE versions	5.4-5.8	5.7-5.8	5.3-5.8	5.5+	5.6-5.8	5.4+	5.7	5.0-5.8	Source only	5.7 only	5.5-5.8	5.8+
Platform	Win/Mac/Linux	Win/Mac/Linux	Win/Mac	Win/Mac/Linux	Windows only	Win/Mac/Linux	Win/Mac/Linux	Win/Mac/Linux	Cross-platform	Win/Linux	Windows only	Win/Mac/Linux
Hosted option	no	no	yes (free + paid)	no	no	no	no	no	no	no	no	no
API key required	no	no	yes (hosted tools)	no	no	no	no	no	no	no	no	no (free key for terrain)
License	MIT	MIT	Proprietary (hosted)	MIT	Apache-2.0	MIT	Apache-2.0	MIT	MIT	MIT	MIT	MIT
Offline (no editor)	yes	partial (index CLI)	no	no	no	no	partial (build/tests/INI)	no	yes	no	no	no
Native action count	1,103 (+830 Epic on 5.8)	~1,600	64 hosted (46 free + 18 paid)	32	253 (21 tools)	20	49	387 (1 gateway tool)	10	43 tools / ~300 ops	750+	~1,000 methods / 35 toolsets
Auto-writes MCP client config	yes	no	no	no	no	no	no	no	no	partial	partial	yes
One-command update (server + plugin)	yes	yes	no	no	no	no	no	no	no	no	no	no

CLI & Setup

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Interactive setup wizard	yes	no	no	no	no	no	no	no	no	no	no	no
Doctor diagnostics command	yes	no	no	no	no	no	partial	no	no	no	no	no
Deploy editor plugin command	yes	no	no	no	no	no	yes	no	no	no	no	no
Headless build command	yes	no	no	no	no	no	yes	partial	no	yes	yes	no
Client hook install/uninstall	yes	no	no	no	no	no	no	no	no	no	no	no
Install feasibility check	yes	no	no	no	no	no	partial	no	no	no	no	no

Blueprints

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Read blueprint structure	yes	yes	yes	no	yes	partial	yes	yes	no	yes	yes	yes
Full graph (nodes, pins, connections)	yes	yes	yes	no	yes	no	yes	yes	no	yes	yes	yes
Variable CRUD	yes	yes	yes	partial	partial	partial	partial	yes	no	yes	yes	yes
Function CRUD	yes	yes	yes	no	partial	partial	partial	yes	no	partial	partial	yes
Node CRUD + connect	yes	yes	yes	partial	yes	no	partial	yes	no	yes	yes	yes
Component CRUD	yes	yes	yes	partial	yes	partial	partial	yes	no	yes	yes	yes
Batch connect (single compile)	yes	yes	yes	no	partial	no	no	no	no	yes	yes	yes
Auto-layout graph	yes	yes	yes	no	yes	no	no	no	no	yes	partial	yes
Bulk graph rewrite (T3D/JSON)	yes	yes	yes	no	yes	no	no	no	no	no	yes	partial
Set CDO property	yes	yes	yes	yes	partial	partial	partial	yes	no	yes	yes	yes
Compile / batch compile	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes
Project-wide call-site search	yes	partial	partial	no	no	no	no	no	no	partial	yes	partial
Execution flow trace	yes	yes	yes	no	no	no	no	no	no	yes	no	partial
Validate without saving	yes	yes	yes	no	partial	partial	partial	yes	no	yes	yes	yes
Interfaces / dispatchers / macros	yes	yes	yes	no	partial	partial	no	partial	no	partial	yes	yes
Construction script preview	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

Materials

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Create material / instance	yes	yes	yes	no	yes	partial	yes	yes	no	partial	yes	yes
Expression graph CRUD	yes	yes	yes	no	yes	partial	no	yes	no	partial	yes	yes
Connect expressions	yes	yes	yes	no	yes	partial	no	yes	no	partial	yes	yes
Build graph from JSON	yes	yes	no	no	no	no	no	partial	no	no	yes	partial
Instance parameter set	yes	yes	yes	no	yes	partial	yes	yes	no	yes	yes	yes
Custom HLSL node	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	yes
Recompile cascade	yes	yes	yes	no	yes	partial	no	yes	no	partial	yes	yes
Render preview PNG	yes	yes	no	no	no	no	no	yes	no	no	partial	partial
Material function authoring	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	yes
Shader stats / graph validation	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial

Animation

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Anim Blueprint CRUD	yes	yes	yes	no	yes	partial	partial	yes	no	yes	yes	yes
State machine CRUD	yes	yes	yes	no	partial	no	partial	yes	no	yes	yes	yes
Anim sequence read/write	yes	yes	yes	no	yes	partial	no	yes	no	yes	yes	yes
Bone track keys	yes	yes	yes	no	partial	partial	no	yes	no	yes	partial	yes
Curves CRUD	yes	yes	yes	no	yes	partial	no	partial	no	partial	yes	yes
Montage CRUD	yes	yes	yes	no	partial	partial	no	yes	no	yes	yes	yes
Blendspace CRUD	yes	yes	yes	no	partial	partial	no	yes	no	yes	yes	partial
IK rig / retargeter	yes	yes	yes	no	yes	partial	no	yes	no	yes	partial	partial
Pose Search	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
Live PIE bone reads	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
Control Rig authoring	yes	yes	partial	no	yes	partial	no	partial	no	yes	partial	yes
Skin weights / cloth binding	yes	partial	partial	no	partial	partial	no	yes	no	partial	partial	partial
Non-destructive Control Rig sessions	yes	no	no	no	no	no	no	no	no	no	no	no
Contact constraints (hand/foot lock)	yes	no	no	no	no	no	no	no	no	no	no	no
Viewport pose capture + propagation	yes	no	no	no	no	no	no	no	no	no	no	partial
Deterministic animation analysis	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Skeleton edit sessions	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Locomotion speed measurement	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Batch retarget animations	yes	yes	yes	no	yes	partial	no	yes	no	yes	partial	partial
Curve-to-morph target check	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Live post-process AnimBP override	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Create skeleton from skeletal mesh	yes	no	no	no	no	no	no	no	no	no	no	partial

Niagara VFX

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Create system	yes	yes	yes	no	partial	partial	no	yes	no	partial	yes	yes
Emitter CRUD	yes	yes	yes	no	partial	partial	partial	yes	no	partial	yes	yes
Module CRUD	yes	yes	yes	no	no	no	no	yes	no	no	yes	yes
User parameters	yes	yes	yes	no	partial	partial	partial	yes	no	partial	yes	yes
Renderer CRUD	yes	yes	partial	no	no	no	no	yes	no	partial	yes	yes
HLSL module create	yes	yes	partial	no	no	no	no	no	no	no	no	yes
Spawn VFX in level	yes	partial	yes	no	partial	partial	yes	yes	no	yes	partial	partial
"Does it emit" validation	yes	partial	partial	no	no	no	no	partial	no	partial	partial	partial
Simulation stages / event handlers	yes	yes	no	no	no	no	no	partial	no	no	no	no
Compiled GPU script inspection	yes	yes	no	no	no	no	no	no	no	no	partial	no

Editor / Build / C++ Source

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Live Coding compile	yes	yes	yes	no	yes	partial	yes	partial	no	yes	yes	partial
Build errors / log search	yes	yes	yes	no	yes	partial	yes	partial	no	yes	yes	yes
Console command	yes	yes	partial	no	yes	yes	yes	yes	no	yes	yes	partial
Execute Python	yes	yes	yes	no	yes	yes	partial	yes	no	yes	yes	yes
Editor start/stop/restart	yes	no	no	no	no	no	no	partial	no	yes	partial	no
PIE control	yes	yes	yes	no	yes	partial	yes	yes	no	yes	yes	yes
Screenshot capture	yes	yes	yes	no	yes	yes	yes	yes	no	yes	yes	yes
Viewport camera	yes	partial	partial	yes	yes	yes	yes	yes	no	partial	partial	yes
Sequencer	yes	partial	yes	no	yes	partial	no	yes	no	partial	yes	yes
Build / cook / HLODs	yes	partial	partial	no	partial	partial	yes	partial	no	partial	partial	partial
Read/write project C++	yes	partial	yes	no	no	no	no	no	partial	no	partial	no
Create C++ class	yes	partial	yes	no	no	no	no	no	no	no	partial	no
Engine source FTS search	yes	yes	no	no	no	no	no	no	yes	no	no	no
Engine call graphs	yes	yes	no	no	no	no	no	no	partial	no	no	no
Bundled API docs corpus	no^†	no	yes	no	no	no	yes	no	partial	no	no	partial
Generate project files	yes	no	yes	no	no	no	yes	no	no	yes	partial	no
Headless UBT build	yes	no	no	no	no	no	yes	partial	no	yes	partial	no
Auto-updater	yes	yes	no	no	no	no	no	no	no	no	no	no
GIF capture	yes^‡	yes	no	no	no	no	no	no	no	no	no	no
Automation test runner	yes	yes	partial	no	partial	partial	yes	yes	no	partial	yes	yes
Unreal Insights trace / profiling	yes	yes	partial	no	partial	partial	no	yes	no	partial	yes	yes
C++ symbol verify / header lint	yes	yes	partial	no	no	no	no	no	partial	no	partial	no
Fab library import	yes	no	no	no	no	no	partial	yes	no	no	no	yes
Standalone game launch + trace	yes	no	no	no	no	no	no	no	no	no	no	yes
Frame timing with bottleneck verdict	yes	partial	no	no	no	no	no	partial	no	no	partial	yes
Hitch injection for testing	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
Scalability + CVar bulk set	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
Reflective UFUNCTION invocation	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
Live PIE actor manipulation	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
PIE configuration (net mode, clients)	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
What the user has open	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Dirty packages / world state read	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
Enable/disable engine plugins	yes	partial	partial	no	partial	partial	yes	yes	no	partial	partial	yes
Engine class hierarchy / usage examples	yes	yes	partial	no	partial	partial	partial	partial	partial	partial	partial	partial
Headless scripted editor utilities	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

†Covered via reflection(reflect_class/struct/enum) — returns the same tooltips, flags, and signatures live from the editor, without an indexed corpus to maintain.

‡Provided by the first-party pie-studio plugin.

Editor Safety & Session Control

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Dialog system: modal detection	yes	partial	no	no	no	no	no	yes	no	no	no	no
Dialog system: policy (auto / defer / ask)	yes	partial	no	no	no	no	no	partial	no	no	no	no
Multi-editor targeting	yes	no	no	no	no	no	no	no	no	no	no	no
Asset locking between agents	yes	no	no	no	no	no	no	partial	no	no	partial	no
Pre-call guards / policy hooks	yes	no	no	no	no	no	no	partial	no	no	no	no
On-demand tool discovery (lean context)	yes	yes	no	no	yes	no	no	yes	no	no	yes	yes
Auto-filed tool-gap feedback	yes	no	no	no	no	no	no	no	no	no	partial	no
Wraps Epic 5.8 native MCP tools	yes	no	no	no	no	no	no	no	no	no	no	yes
Dialog system: read full dialog + buttons	yes	no	no	no	no	no	no	no	no	no	no	partial
Dialog system: per-row checkbox answers	yes	no	no	no	no	no	no	no	no	no	no	partial
Dialog system: human-only answers via in-client form	yes	no	no	no	no	no	no	no	no	no	no	no
Dialog system: pre-armed pattern answers	yes	no	no	no	no	no	no	no	no	no	no	no
Dialog system: gates every call route	yes	no	no	no	no	no	no	partial	no	no	no	no
Guard scopes by declared effect	yes	no	no	no	no	no	no	partial	no	no	no	no
Python escape hatch gated by tool search	yes	no	no	no	no	no	no	no	no	no	partial	no
Approval for PIE with Blueprint errors	yes	partial	no	no	no	no	no	no	no	no	no	no
Safe editor shutdown (dirty check)	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Multi-editor write safety	yes	no	no	no	no	no	no	no	no	no	no	no
Bridge rejects browser origins	yes	partial	no	partial	partial	no	partial	yes	no	no	partial	partial
Protected engine roots	yes	no	partial	no	no	no	no	no	no	no	no	no
Undo transactions + history	yes	partial	partial	no	partial	partial	no	partial	no	partial	yes	yes

Agent Context & Discovery

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Selectable context modes (incl. single gateway)	yes	no	no	no	no	no	no	partial	no	no	partial	partial
Offline capability report	yes	no	no	no	no	no	partial	partial	no	no	no	no
Result field selection (select/omit)	yes	yes	no	no	no	no	no	no	no	no	partial	no
Cursor pagination on large reads	yes	yes	no	no	no	no	no	partial	no	partial	partial	no
Per-category enable/disable	yes	yes	no	no	no	no	no	partial	no	no	no	no
Client quirks handling	yes	no	no	no	no	no	no	partial	no	no	no	no
Upgrade notice in tool responses	yes	partial	no	no	no	no	no	no	no	no	no	no
Progress notifications on long calls	yes	no	no	no	no	no	no	yes	no	partial	no	no

Multi-project & Sessions

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Runtime project switch	yes	no	no	no	no	no	no	no	no	no	no	no
Add/drop editors at runtime	yes	no	no	no	no	no	no	no	no	no	no	no
Detect multiple editors on one project	yes	no	no	no	no	no	no	no	no	no	no	no
Per-project engine selection	yes	no	no	no	no	no	no	no	no	no	partial	no
Layered config cascade (global to local)	yes	no	no	no	no	no	no	no	no	no	no	no

Reliability & Diagnostics

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Timeouts report outcome unknown (no double-apply)	yes	no	no	no	no	no	no	partial	no	partial	no	partial
Plugin/server parity + stale build detection	yes	no	no	no	no	no	no	partial	no	no	partial	no
Protocol/ABI capability handshake	yes	no	no	no	no	no	partial	partial	no	no	partial	no
Out-of-process engine state probe	yes	no	no	no	no	no	no	partial	no	no	partial	partial
Crash report listing	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Asset registry health diagnostics	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

Privacy & Feedback

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Credential + identifier scrubbing on outbound text	yes	no	no	no	no	no	no	no	no	no	no	no
Deferred report review queue	yes	no	no	no	no	no	no	no	no	no	partial	no
Issue-to-PR automation	yes	no	no	no	no	no	no	no	no	no	no	no

Config / INI

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Read INI	yes	yes	partial	no	partial	partial	yes	partial	no	partial	partial	yes
Write INI	yes	partial	partial	no	partial	partial	yes	partial	no	partial	partial	yes
Resolve any INI key across layers	partial^†	yes	no	no	no	no	no	no	no	no	partial	no
Diff project INI vs engine defaults	partial	yes	no	no	no	no	no	no	no	no	no	no

†ue-mcp resolves the effective value of any config-backed setting through editor(get_object_properties) on its settings class default object, and of any console variable through editor(get_cvars), which also reports defaultValue, isDefault and the priority that set it. Raw INI keys with no backing property, and per-layer attribution, are not covered.

Project / Asset Management

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
FTS5 asset search	yes	yes	yes	no	yes	yes	yes	yes	no	yes	yes	yes
Find references	yes	yes	yes	no	yes	yes	yes	yes	no	yes	yes	yes
Asset CRUD (move/rename/delete)	yes	partial	partial	no	yes	partial	no	yes	no	yes	partial	yes
Import mesh / texture / anim	yes	yes	partial	no	yes	partial	partial	yes	no	yes	partial	yes
DataTable row CRUD	yes	yes	yes	no	yes	partial	yes	yes	no	yes	yes	yes
World Partition rename	yes	no	no	no	no	no	no	no	no	no	no	no
Semantic asset diff	yes	yes	yes	no	no	no	no	partial	no	partial	yes	yes
Content hygiene audit + fix	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Migrate assets to another project	yes	partial	partial	no	partial	partial	no	partial	no	yes	partial	partial
Atomic bulk data-asset upsert	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
CurveTable / StringTable authoring	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
User enum / struct authoring	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	yes
UV inspection and editing	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
Asset export to files	yes	yes	partial	no	yes	partial	no	partial	no	yes	partial	partial
Texture change detection	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Import pipeline assets	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

Levels & Actors

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Place / delete / move actors	yes	yes	yes	yes	yes	yes	yes	yes	no	yes	partial	yes
Actor details / bounds	yes	yes	yes	partial	yes	yes	partial	yes	no	yes	yes	yes
Set UPROPERTY (dotted path)	yes	partial	yes	partial	partial	partial	partial	yes	no	yes	yes	yes
Bulk batch spawn / translate	yes	yes	yes	no	partial	partial	no	partial	no	partial	partial	partial
Line trace / snap to floor	yes	yes	yes	no	yes	partial	no	partial	no	partial	partial	yes
Level CRUD	yes	yes	partial	no	yes	partial	yes	yes	no	yes	partial	partial
World settings / sublevels	yes	yes	partial	no	partial	partial	partial	yes	no	partial	partial	partial
Build lighting	yes	partial	yes	no	partial	partial	no	yes	no	partial	partial	partial
Spline editing	yes	partial	partial	no	partial	partial	no	yes	no	partial	partial	partial
Instanced mesh (HISM) instance CRUD	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
World Partition unloaded actor query	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Post-process settings	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Actor tags / folders / attach	yes	partial	partial	no	yes	partial	no	partial	no	partial	partial	yes
Actor motion telemetry	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

Spatial Instructions

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Frame-aware transforms (world/actor/parent)	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Viewpoint-aware rotation (clockwise from X)	yes	no	no	no	no	no	no	no	no	no	no	no
Quaternion deltas (no Euler drift)	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Spatial dry-run preview	yes	no	no	no	no	no	no	no	no	no	no	no
Attachment/socket-aware inspection	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
Relative transform between actors	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Aim actor at target	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
Captures with camera metadata + fixed settings	yes	partial	partial	no	yes	partial	no	partial	no	partial	partial	partial
Viewport pixel hit-test	yes	no	no	no	partial	no	no	no	no	no	no	partial
Non-savable verification actors	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Component overlap / penetration test	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Exact actor paths (duplicate labels refused)	yes	partial	no	no	partial	no	no	partial	no	no	partial	partial
Before/after transforms + rollback on edits	yes	no	no	no	no	no	no	no	no	no	partial	no
Spatial contract in every context mode	yes	no	no	no	no	no	no	no	no	no	no	no

Gameplay Systems

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Collision / physics	yes	yes	yes	partial	partial	partial	partial	yes	no	partial	partial	yes
Navigation (rebuild/query)	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	partial
Behavior Tree full read/auth	yes	yes	yes	no	yes	no	no	yes	no	no	yes	yes
Blackboard CRUD	yes	yes	yes	no	yes	partial	no	yes	no	partial	yes	yes
EQS	yes	yes	yes	no	partial	partial	no	yes	no	partial	yes	yes
StateTree	yes	yes	yes	no	partial	partial	no	yes	no	partial	yes	yes
Smart Objects	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	partial
GAS (abilities / effects)	yes	yes	yes	no	yes	partial	partial	yes	no	partial	yes	partial
Networking / replication	yes	yes	partial	no	partial	partial	no	yes	no	partial	partial	partial
Multi-client PIE	yes	no	no	no	no	no	no	partial	no	no	partial	no
GameMode / PlayerController auth	yes	partial	yes	no	partial	partial	no	yes	no	yes	partial	partial
Enhanced Input asset CRUD	yes	yes	yes	no	yes	partial	yes	yes	no	yes	yes	yes
Dialogue / Conversation graphs	partial	yes	no	no	no	no	no	partial	no	no	no	partial
Chooser tables	yes	yes	partial	no	partial	partial	no	partial	no	partial	yes	partial
Mass Entity / ZoneGraph	yes	yes	partial	no	partial	partial	no	yes	no	partial	partial	partial
AI perception authoring	yes	yes	yes	no	partial	partial	no	yes	no	partial	partial	partial
Live Behavior Tree execution path	yes	yes	yes	no	no	no	no	no	no	no	no	no
Live blackboard write (notifying)	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
Live StateTree events/transitions	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Live input action value	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Enhanced Input validation audit	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
GAS ability activation trace	yes	yes	no	no	no	no	no	no	no	no	partial	no
GAS state snapshot + diff	yes	yes	no	no	no	no	no	no	no	no	partial	partial
GAS live attribute get/set	yes	yes	partial	no	partial	partial	yes	partial	no	partial	partial	partial
GAS cue coverage / attribute audit	yes	yes	no	no	no	no	no	no	no	no	no	partial
SaveGame slot inspection	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Collision profile resolution	yes	no	partial	no	no	no	no	no	no	partial	no	no
Player-mappable input settings	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial

PIE Record / Replay

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Input recording (per-frame, 60 Hz)	yes^†	no	no	no	no	no	no	no	no	yes	no	no
Replay through Enhanced Input	yes	partial	no	no	no	no	no	no	no	yes	no	no
Per-frame drift report (JSON)	yes	no	no	no	no	no	no	no	no	no	no	no
Tracked reflection paths	yes	partial	no	no	no	no	no	no	no	no	no	no
Tracked actor sampling	yes	partial	no	no	no	no	no	no	no	partial	no	no
Multi-client record / replay	yes	no	no	no	no	no	no	no	no	no	no	no
Take Recorder lockstep	yes	no	no	no	no	no	no	no	no	yes	no	no
Monitor mode (manual vs ref)	yes	no	no	no	no	no	no	no	no	partial	no	no
Offline diff (no PIE)	yes	no	no	no	no	no	no	no	no	no	no	no
Per-frame PNG capture	yes	partial	no	no	no	no	no	no	no	yes	no	no
Actor snapshot (full UProperty)	yes	partial	no	no	no	no	no	partial	no	no	partial	no
CPU throttle suppression	yes	no	no	no	no	no	no	partial	no	no	no	yes
Determinism contract documented	yes	no	no	no	no	no	no	no	no	no	no	no
Recording-to-test scaffolding	yes	no	no	no	no	no	no	no	no	no	no	no
Temporal assertions over play data	yes	no	partial	no	no	no	no	no	no	no	no	no
Declarative play scenarios	yes	no	yes	no	no	no	no	no	no	partial	no	yes
Timed input tape injection	yes	partial	yes	no	no	no	no	partial	no	yes	no	yes
PIE session error capture	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial

†Every ue-mcp row in this table, and GIF capture in the Editor table, ships in pie-studio, ue-mcp's first-party plugin. Install with ue-mcp plugin install pie-studio.

Landscape / PCG / Foliage

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Landscape CRUD	yes	partial	yes	no	partial	partial	no	yes	no	partial	yes	yes
Heightmap import/export	yes	partial	yes	no	partial	partial	no	yes	no	partial	partial	yes
PCG graph CRUD	yes	partial	yes	no	partial	partial	partial	yes	no	partial	yes	yes
Foliage scatter	yes	partial	yes	no	partial	partial	no	yes	no	partial	yes	yes
Runtime Virtual Texture authoring	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
Real-world GPS terrain	yes	no	no	no	no	no	no	no	no	no	no	yes
Terrain analysis (slope/flat areas)	yes	partial	yes	no	no	no	no	no	no	no	no	yes
Erosion simulation	yes	no	yes	no	no	no	no	no	no	no	yes	yes
Height/weight region read-write	yes	no	partial	no	no	no	no	partial	no	no	partial	yes

Mesh & Geometry

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Mesh ops (UV, simplify, remesh, boolean)	yes	yes	partial	no	partial	partial	no	yes	no	partial	partial	partial
Collision generation	yes	yes	partial	no	yes	partial	no	yes	no	partial	partial	yes
Fracture / Dataflow graphs	yes	no	yes	no	no	no	no	no	no	no	no	yes

Audio / UI

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
SoundCue graph authoring	yes	yes	yes	no	partial	partial	no	yes	no	partial	yes	yes
MetaSound graph authoring	yes	yes	yes	no	partial	partial	no	yes	no	yes	yes	yes
Play sound / ambient	yes	yes	partial	no	partial	partial	no	yes	no	yes	yes	partial
Widget Blueprint CRUD	yes	yes	yes	partial	yes	partial	no	yes	no	yes	yes	yes
UMG animation CRUD	yes	yes	yes	no	no	no	no	yes	no	partial	yes	yes
MVVM bindings	partial	partial	yes	no	partial	partial	no	partial	no	partial	yes	yes
Spawn / inspect widget in PIE	yes	partial	yes	no	partial	partial	partial	partial	no	partial	partial	yes
Sound routing read	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Submix / class / mix authoring	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
Audio PCM decode	yes	no	no	no	no	no	no	no	no	no	no	no
Runtime widget interaction + delegates	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	yes
All live widget instances, per client	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
Runtime widget layout diagnostics	yes	partial	partial	no	partial	partial	partial	partial	no	partial	partial	partial
Live widget delegate bindings	yes	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
UI focus/navigation audit	yes	yes	partial	no	partial	partial	no	partial	no	partial	partial	partial
UI accessibility audit	yes	partial	no	no	no	no	no	no	no	no	no	no
CommonUI wiring audit	yes	yes	no	no	no	no	no	no	no	no	no	no
BindWidget contract report	yes	no	no	no	no	no	no	no	no	no	no	no
Extract widget subtree	yes	no	partial	no	no	no	no	no	no	no	partial	no

Workflow Infrastructure

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
YAML flow engine	yes	no	no	no	no	no	no	no	no	no	no	no
Per-step rollback / git snapshot	yes	no	partial	no	no	no	no	partial	no	no	partial	partial
Per-handler idempotency	yes	no	no	no	no	no	no	yes	no	no	no	no
Sibling C++ plugin pattern	yes	yes	no	no	no	no	no	no	no	no	yes	no
Embedded in-editor agent UI	no	no	yes	no	no	no	no	no	no	yes	yes	no
Domain knowledge / skills	Embedded + 6 skills	18 skills	140+ skills (paid)	no	no	no	no	6 workflow prompts	Best practices (6 concepts)	Domain docs + 10 contexts	8 MCP docs + 15 scripts	38 skills
Every action usable as a workflow step	yes	no	no	no	no	no	no	no	no	no	no	no
Nested workflows	yes	no	no	no	no	no	no	no	no	no	no	no
Step output references	yes	no	no	no	no	no	no	no	no	no	no	no
Runtime workflow parameters	yes	no	no	no	no	no	no	no	no	no	no	no
Per-step retry with backoff/filter	yes	no	no	no	no	no	no	no	no	no	no	no
Expected-failure steps	yes	no	no	no	no	no	no	no	no	no	no	no
Workflow lifecycle hooks	yes	no	no	no	no	no	no	no	no	no	no	no
Conditional steps	yes	no	no	no	no	no	no	no	no	no	no	no
Workflow dry-run / execution plan	yes	no	no	no	no	no	no	no	no	no	no	partial
Skip steps at call time	yes	no	no	no	no	no	no	no	no	no	no	no
Shell command steps	yes	no	no	no	no	no	no	no	no	no	no	no
Custom code tasks in workflows	yes	no	no	no	no	no	no	no	no	no	no	no
Partial-write rollback of failing step	yes	no	no	no	no	no	no	no	no	no	no	partial
Config and guard hot reload	yes	no	no	no	no	no	no	no	no	no	partial	no
Live workflow event stream (SSE)	yes	no	no	no	no	no	no	no	no	no	no	no
HTTP API to run workflows	yes	no	no	no	no	no	no	no	no	no	no	no
Session journal (auto-recorded runs)	yes	no	no	no	no	no	no	no	no	no	no	yes
Skill verification vs live surface	yes	no	no	no	no	no	no	no	no	no	no	no
Skill install/list/get via tools	yes	no	partial	no	no	no	no	no	no	no	partial	partial
Built-in reference workflows	yes	no	no	no	no	no	no	no	no	no	no	no
One-command end-to-end demo scene	yes	no	no	no	no	no	no	no	no	no	no	no

Extensibility (Plugin System)

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
plugin install CLI	yes	no	no	no	no	no	no	no	no	no	no	no
Inject actions into built-in categories	yes	partial	no	no	no	no	no	no	no	no	partial	partial
Provide new top-level categories	yes	yes	no	no	no	no	no	no	no	no	yes	yes
Ship native C++ handlers (versioned ABI)	yes	partial	no	no	no	no	no	no	no	no	partial	partial
Runtime introspection (list / describe)	yes	yes	no	no	partial	no	no	yes	no	no	yes	yes
UE-side dependency check (.uplugin)	yes	no	no	no	no	no	no	no	no	no	no	no
Knowledge files merged into AI docs	yes	no	no	no	no	no	no	no	no	no	no	partial
Reference plugin published to npm	yes	no	no	no	no	no	no	no	no	no	no	no
Public plugin registry / catalog	yes	no	no	no	no	no	no	no	no	no	no	no
Install a plugin by registry slug	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin publish CLI	yes	no	no	no	no	no	no	no	no	no	no	no
Registry login (device-flow auth)	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin scaffold generator	yes	no	no	no	no	no	no	no	no	no	no	no
Pre-publish plugin validator	yes	no	no	no	no	no	no	no	no	no	no	no
Plugins ship agent skills (namespaced)	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin skill action-reference lint	yes	no	no	no	no	no	no	no	no	no	no	no
Plugins ship workflows (flows)	yes	no	no	no	no	no	no	no	no	no	no	no
Plugins ship call guards	yes	no	no	no	no	no	no	no	no	no	no	no
Typed task SDK for plugin actions	yes	yes	no	no	no	no	no	no	no	no	partial	no
Declarative native handlers (no glue code)	yes	no	no	no	no	no	no	no	no	no	no	partial
Server-version gate for plugins	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin semver pin in project config	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin uninstall with clean removal	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin update command	yes	no	no	no	no	no	no	no	no	no	no	no
Degraded plugin loading, warnings to agent	yes	no	no	no	no	no	no	no	no	no	partial	no
Project-local custom tasks override built-ins	yes	no	no	no	no	no	no	no	no	no	no	no
Plugin-aware bug routing	yes	no	no	no	no	no	no	no	no	no	no	no
Per-project plugin sets (multi-editor)	yes	no	no	no	no	no	no	no	no	no	partial	no

First-party Plugins

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Source control (Perforce) integration	yes^†	partial	partial	no	partial	partial	no	partial	no	partial	partial	partial
Checkout-on-write guard	yes	no	no	no	no	no	no	partial	no	no	no	no
Per-agent changelist / workspace isolation	yes	no	no	no	no	no	no	no	no	no	no	no
Text/image-to-3D asset generation	yes	no	no	no	no	no	no	no	no	no	no	no
Contextual Animation scene authoring	yes	no	no	no	no	no	no	no	no	no	no	no
Voxel Plugin world/sculpt control	yes	no	no	no	no	no	no	no	no	no	no	no
Fab in-editor browser integration	partial	no	no	no	no	no	no	yes	no	no	no	yes

†Every ue-mcp row in this table ships as a first-party plugin installed with ue-mcp plugin install: ue-mcp-perforce, ue-mcp-meshy, ue-mcp-contextual-anim, ue-mcp-plugin-voxel-plugin and ue-mcp-fab-editor (alpha).

Summary

The one-paragraph read on each.

ue-mcp

Broadest coverage in this matrix: 1,103 typed actions of its own across 26 categories, plus all 830 of Unreal 5.8's native MCP tools wrapped in-process as first-class actions. Only tool with a YAML flow engine, per-step git rollback, and a three-shape plugin system (inject into built-ins, provide new top-level categories, or ship native C++ via a versioned bridge ABI). Its dialog guard catches modal dialogs that park the game thread, even while idle, and applies a configurable auto, defer or ask policy. Covers the full editor surface including levels, gameplay systems (AI, GAS, StateTree, networking), landscape, PCG, foliage, audio, UI, and project C++. Spatial edits are frame- and viewpoint-aware, so "clockwise from above" becomes an exact quaternion edit with a dry-run preview and before/after verification. First-party plugins add Perforce checkout-on-write, text-to-3D generation, Contextual Animation and Voxel Plugin control, and pie-studio adds PIE Record/Replay with per-frame drift reports, multi-client recording, Take Recorder lockstep, offline diff, and frame capture.

Monolith

Install is manual: clone or extract a per-engine zip into Plugins, then hand-write the MCP client config. The zips ship precompiled DLLs for UE 5.7 and 5.8, so Blueprint-only projects skip the compile, and a native proxy survives editor restarts. Around 1,600 namespaced actions span Blueprints, materials, animation and Motion Matching, Niagara, GAS, AI (Behavior Trees, StateTree, EQS, Smart Objects, navigation), audio, CommonUI, level blockout and actor placement, plus an offline engine source index. No dedicated landscape, PCG, or Sequencer authoring (Python only), and no PIE record/replay.

Flop

The only commercial hosted option with an in-editor agent panel, now owned by Aura after a mid-2026 acquisition. The free tier's 46 tools cover scenes, materials, Niagara, animation, AI, GAS, and audio; paid tiers add the Blueprint authoring surface, Python, and 15k API lookup.

chongdashu

The original community reference, explicitly marked experimental and untouched since April 2025. Its 32 tools cover basic actor placement, Blueprint creation with components and simple node wiring, and bare UMG widgets. No material, console, or Python tools.

GenOrca

A Python FastMCP server fronting a C++ plugin that runs embedded Python actions. 253 actions sit behind 21 namespace-dispatcher tools with list_actions discovery, so context cost stays flat. Coverage now reaches well past chongdashu: Blueprint graph rebuild from JSON with auto-layout, materials, Behavior Trees, GAS, Sequencer, IK retargeting, Control Rig, DataTables, UMG, and viewport captures returned as images. Precompiled Windows binaries for UE 5.6 to 5.8. No dedicated Niagara, audio, landscape, or PCG tools; those fall back to its Python action.

runreal

The no-plugin option: 20 small tools over Python Remote Execution, with typed actor spawning, asset search, screenshots and camera moves, and raw Python for everything else. No commits since June 2025.

mcp-unreal

Go single binary paired with a source-only C++ plugin and UE's Remote Control API. Strongest offline: headless UBT builds, cooking, automation tests, INI and .uproject editing, and a bundled UE 5.7 docs index. Editor coverage spans actors, Blueprint graphs, levels, DataTables, Enhanced Input, PCG, and PIE, but many handlers are thin and most AnimBP state machine edits are stubs. UE 5.7 only, no published releases, dormant since February 2026.

ChiR24

Hides 387 actions across 23 internal tools behind one 'unreal' gateway tool (search, describe, execute, configure) to save context, served from the plugin's native HTTP MCP endpoint or a TypeScript stdio bridge. Broad engine coverage: Blueprints, materials, animation authoring, Niagara, Sequencer, landscape, PCG, AI (Behavior Trees, EQS, StateTree, Smart Objects), GAS, and networking. No engine source search, config diffing, or input record/replay.

unreal-analyzer

Static C++ analyzer for engine or project source via tree-sitter: class lookup, inheritance, symbol references, regex search. Cannot drive the editor or read assets. Unmaintained since 2025, with open issues reporting it fails to launch.

Soverance

Standalone HTTP REST plugin (43 tools, about 300 operations) with deep animation blueprint, montage, blend space, and IK retargeter coverage, plus a PIE record/replay system with Take Recorder and frame capture. Adds MetaSound graph authoring, DataTable row editing, level blueprint editing, and an in-editor Claude Code panel. UE 5.7 only. Pitches itself as a debugging and analysis tool rather than a prompt-to-game generator.

Claireon

In-editor C++ plugin exposing 750+ tools behind a deliberately minimal surface (tool_search plus python_execute, with an optional restart-surviving proxy) to save agent context. Deep session-based authoring across Blueprints, materials, animation, Niagara, PCG, landscape, foliage, SoundCues, MetaSounds, State Tree, Behavior Trees and EQS, widgets with MVVM, and Data Tables, plus live PIE GAS tools, transaction-group rollback, Unreal Insights trace analysis, a built-in AI chat panel, and a nine-stage workflow. Windows only, UE 5.5 to 5.8. No record/replay, and no dedicated navigation, asset import, or actor and asset delete tools.

vibeue

A C++ plugin that expands Unreal 5.8's own native MCP endpoint (ToolsetRegistry + AgentSkill) rather than running a separate server. It registers 35 typed service toolsets (about 1,000 methods), 8 bridged tools and 38 skill packs, and deliberately leaves basic asset, actor, material, Niagara, PCG and Sequencer work to Epic's own toolsets on the same endpoint, which the matrix credits to it. Its depth sits where the engine is thin: terrain and world building (landscape sculpting, heightmaps, splines, auto-materials, foliage, procedural map blockout, real-world GPS terrain), animation assets, MetaSound and SoundCue graphs, UMG with MVVM bindings, Behavior Trees, Blackboards, EQS and StateTree, undo transactions, scripted PIE scenarios, and performance profiling (CPU vs GPU frame timing, Unreal Insights traces). No in-editor chat. Win/Mac/Linux, UE 5.8+, MIT. No one-call graph-from-JSON import, GAS authoring, dedicated networking tools, or PIE record/replay.

Want the broadest surface?

One command. Five minutes. Every category in the matrix.

Get Started →Read the docs

How ue-mcp compares.