ue-mcp vs other Unreal MCP servers

First-party baseline

Unreal 5.8 ships its own MCP server.

Epic's official plugin is Experimental in 5.8 and embedded in the editor: enable it and an HTTP+SSE MCP server binds to localhost, no C++ project required. It is deliberately minimal by design, spawning actors, configuring lighting, creating material instances, inspecting Slate widgets, and running automation tests, fronted by a tool-search registry with clean custom-tool extension.

It is not a column in the matrix because ue-mcp does not replace it. On 5.8 ue-mcp reaches that same registry in-process and re-surfaces all 830 of its official tools as first-class actions inside the matching category, so you get the first-party surface and everything below it.

Every wrapped tool →Epic's 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
Flop	flopperam/unreal-engine-mcp + hosted	Python + C++ plugin	Hosted Streamable HTTP, FastMCP
chongdashu	chongdashu/unreal-mcp	Python + C++ plugin	TCP socket to plugin
GenOrca	GenOrca/unreal-mcp	Python (uv) + C++ plugin	TCP/JSON to plugin, embedded Python
runreal	runreal/unreal-mcp	Node.js (npx)	Python Remote Execution, no plugin
mcp-unreal	remiphilippe/mcp-unreal	Go (single binary)	HTTP Remote Control + plugin
ChiR24	ChiR24/Unreal_mcp	TS + C++ plugin	Native MCP transport from plugin
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 services	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	Drop plugin folder	Plugin + hosted URL	Clone + uv	Plugin + uv	npx	go install / release	Clone + npm	Clone + npm	Copy plugin folder	Clone into Plugins	Fab / clone into Plugins
Requires C++ project	yes	no	yes	yes	yes	no	yes	yes	no	no (compiles on open)	yes	no
Precompiled binaries	no	yes	yes (hosted)	no	no	N/A	yes	no	no	no	no	yes (Fab)
UE versions	5.4-5.8	5.7+	5.5-5.7	5.5	5.4+	5.4+	5.7	5.x	Source only	5.7 only	5.5+	5.8+
Platform	Win/Mac/Linux	Windows only	Win/Mac/Linux	Win/Mac/Linux	Win/Mac	Win/Mac/Linux	Win/Mac/Linux	Win/Mac	Cross-platform	Win/Linux	Windows only	Windows only
Hosted option	no	no	yes (paid tiers)	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
License	MIT	MIT	Mixed (hosted SaaS)	MIT	MIT	MIT	MIT	MIT	MIT	MIT	MIT	MIT
Offline (no editor)	yes	no	no	no	no	no	partial (docs)	no	yes	no	no	no
Native action count	500+	218	~64 (46 free + 18 paid)	~40	~50	~25	49	22 (broad mode)	~10	37 tools / 200+ ops	600+	11 tools / 32 services

Blueprints

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Read blueprint structure	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes
Full graph (nodes, pins, connections)	yes	yes	yes	partial	yes	partial	yes	yes	no	yes	yes	yes
Variable CRUD	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes
Function CRUD	yes	yes	yes	partial	yes	partial	yes	yes	no	yes	yes	yes
Node CRUD + connect	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes
Component CRUD	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes
Batch connect (single compile)	yes	no	yes	no	no	no	no	no	no	no	no	yes
Auto-layout graph	yes	no	no	no	no	no	no	no	no	yes	no	no
Bulk graph rewrite (T3D/JSON)	yes	no	no	no	no	no	no	no	no	no	no	partial
Set CDO property	yes	no	no	no	no	no	no	no	no	no	no	no
Compile / batch compile	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	yes	yes

Materials

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Create material / instance	yes	yes	yes	partial	yes	partial	yes	yes	no	partial	no	yes
Expression graph CRUD	yes	yes	yes	no	yes	partial	yes	yes	no	no	no	yes
Connect expressions	yes	yes	yes	no	yes	partial	yes	yes	no	no	no	yes
Build graph from JSON	yes	yes	no	no	no	no	no	no	no	no	no	no
Instance parameter set	yes	yes	yes	yes	yes	partial	yes	yes	no	yes	no	yes
Custom HLSL node	yes	yes	no	no	no	partial	no	no	no	no	no	partial
Recompile cascade	yes	yes	yes	no	yes	partial	yes	yes	no	no	no	yes
Render preview PNG	yes	yes	yes	no	no	no	no	no	no	no	no	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	partial	partial	no	partial	no	yes	yes	yes
State machine CRUD	yes	yes	yes	no	no	partial	no	no	no	yes	partial	yes
Anim sequence read/write	yes	yes	yes	no	no	partial	no	no	no	yes	yes	yes
Bone track keys	yes	yes	partial	no	no	partial	no	no	no	yes	no	yes
Curves CRUD	yes	yes	partial	no	no	partial	no	no	no	yes	no	yes
Montage CRUD	yes	yes	yes	no	no	partial	no	no	no	yes	yes	yes
Blendspace CRUD	yes	yes	yes	no	no	partial	no	no	no	yes	yes	partial
IK rig / retargeter	yes	no	yes	no	no	partial	no	no	no	yes	no	yes
Pose Search	yes	yes	no	no	no	partial	no	no	no	no	no	no
Live PIE bone reads	yes	no	yes	no	no	no	no	no	no	no	no	no

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	no	partial	partial
Emitter CRUD	yes	yes	yes	no	partial	partial	no	yes	no	no	partial	partial
Module CRUD	yes	yes	yes	no	no	partial	no	yes	no	no	no	partial
User parameters	yes	yes	yes	no	no	partial	no	yes	no	no	no	no
Renderer CRUD	yes	yes	yes	no	no	partial	no	yes	no	no	no	no
HLSL module create	yes	yes	no	no	no	partial	no	no	no	no	no	yes
Spawn VFX in level	yes	no	yes	no	no	partial	no	yes	no	no	no	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	no	partial	yes	yes	no	yes	no	no
Build errors / log search	yes	yes	yes	no	partial	partial	yes	yes	no	yes	no	partial
Console command	yes	no	yes	yes	yes	yes	yes	yes	no	yes	partial	yes
Execute Python	yes	no	yes	partial	yes	yes	partial	yes	no	yes	yes	yes
Editor start/stop/restart	yes	no	no	no	no	no	no	no	no	yes	no	no
PIE control	yes	no	yes	no	partial	partial	partial	partial	no	yes	yes	partial
Screenshot capture	yes	no	yes	no	no	partial	yes	yes	no	yes	yes	yes
Viewport camera	yes	no	yes	no	no	partial	yes	yes	no	partial	no	partial
Sequencer	yes	no	yes	no	no	partial	no	no	no	no	yes	no
Build / cook / HLODs	yes	no	no	no	no	partial	yes	partial	no	partial	partial	partial
Read/write project C++	yes	no	no	no	no	no	no	no	partial	no	no	no
Create C++ class	yes	no	no	no	no	no	no	no	no	no	no	no
Engine source FTS search	yes	yes	no	no	no	no	no	no	yes	no	no	partial
Engine call graphs	yes	yes	no	no	no	no	no	no	yes	no	no	no
Bundled API docs corpus	no^†	no	yes	no	no	no	yes	no	yes	no	no	partial
Generate project files	yes	no	no	no	no	no	yes	no	no	yes	no	no
Headless UBT build	yes	no	no	no	no	no	yes	no	no	yes	no	partial
Auto-updater	no	yes	yes	no	no	partial	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	no	no	no	partial	yes	yes	no	yes	partial	no

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

Config / INI

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Read INI	yes	yes	no	no	no	partial	no	no	no	no	no	partial
Write INI	yes	no	no	no	no	partial	no	no	no	no	no	partial
Resolve effective value	yes	yes	no	no	no	no	no	no	no	no	no	no
Diff vs engine defaults	yes	yes	no	no	no	no	no	no	no	no	no	no

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	yes	yes	yes	partial
Asset CRUD (move/rename/delete)	yes	no	yes	no	partial	yes	yes	yes	no	yes	partial	yes
Import mesh / texture / anim	yes	no	yes	no	no	partial	yes	yes	no	yes	no	partial
DataTable row CRUD	yes	no	no	no	no	partial	no	no	no	partial	yes	yes
World Partition rename	yes	no	no	no	no	no	no	no	no	no	no	no

Levels & Actors

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Place / delete / move actors	yes	no	yes	yes	yes	yes	yes	yes	no	yes	yes	yes
Actor details / bounds	yes	no	yes	yes	yes	yes	yes	yes	no	yes	yes	yes
Set UPROPERTY (dotted path)	yes	no	yes	partial	partial	partial	yes	yes	no	yes	partial	yes
Bulk batch spawn / translate	yes	no	yes	no	no	partial	no	yes	no	yes	no	partial
Line trace / snap to floor	yes	no	yes	no	no	partial	no	no	no	no	no	no
Level CRUD	yes	no	yes	no	no	partial	no	yes	no	yes	no	partial
World settings / sublevels	yes	no	yes	no	no	partial	no	no	no	no	no	no
Build lighting	yes	no	no	no	no	partial	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	no	yes	partial	partial	partial	no	yes	no	partial	no	partial
Navigation (rebuild/query)	yes	no	no	no	no	partial	no	no	no	no	no	no
Behavior Tree full read/auth	yes	no	yes	yes	yes	partial	no	yes	no	no	yes	no
Blackboard CRUD	yes	no	yes	yes	yes	partial	no	yes	no	no	yes	no
EQS	yes	no	no	no	no	partial	no	no	no	no	yes	no
StateTree	yes	no	no	no	no	partial	no	no	no	no	yes	yes
Smart Objects	yes	no	no	no	no	partial	no	no	no	no	no	no
GAS (abilities / effects)	yes	no	no	no	no	partial	no	no	no	no	partial	no
Networking / replication	yes	no	no	no	no	partial	no	yes	no	no	no	no
Multi-client PIE	yes	no	no	no	no	no	no	no	no	no	no	no
GameMode / PlayerController auth	yes	no	yes	no	no	partial	no	yes	no	partial	no	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	no	no	no	no	no	no	no	no	yes	no	no
Per-frame drift report (JSON)	yes	no	no	no	no	no	no	no	no	partial	no	no
Tracked reflection paths	yes	no	no	no	no	no	no	no	no	no	no	no
Tracked actor sampling	yes	no	no	no	no	no	no	no	no	no	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	no	no	no
Monitor mode (manual vs ref)	yes	no	no	no	no	no	no	no	no	no	no	no
Offline diff (no PIE)	yes	no	no	no	no	no	no	no	no	no	no	no
Per-frame PNG capture	yes	no	no	no	no	no	no	no	no	no	no	no
Actor snapshot (full UProperty)	yes	no	no	no	no	no	no	no	no	no	no	no
CPU throttle suppression	yes	no	no	no	no	no	no	no	no	no	no	no
Determinism contract documented	yes	no	no	no	no	no	no	no	no	no	no	no

Landscape / PCG / Foliage

Feature	ue-mcp	Monolith	Flop	chongdashu	GenOrca	runreal	mcp-unreal	ChiR24	unreal-analyzer	Soverance	Claireon	vibeue
Landscape CRUD	yes	no	yes	no	no	partial	no	no	no	no	partial	yes
Heightmap import/export	yes	no	yes	no	no	partial	no	no	no	no	no	yes
PCG graph CRUD	yes	no	yes	no	no	partial	no	no	no	no	partial	partial
Foliage scatter	yes	no	yes	no	no	partial	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	no	yes	no	no	partial	no	no	no	no	no	yes
MetaSound graph authoring	yes	no	no	no	no	partial	no	no	no	no	partial	yes
Play sound / ambient	yes	no	yes	no	no	partial	no	no	no	no	yes	partial
Widget Blueprint CRUD	yes	no	yes	yes	yes	partial	no	yes	no	yes	yes	yes
UMG animation CRUD	yes	no	yes	no	no	partial	no	no	no	partial	yes	yes
MVVM bindings	partial	no	no	no	no	partial	no	no	no	no	no	yes
Spawn / inspect widget in PIE	yes	no	yes	no	no	partial	partial	no	no	partial	partial	yes

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	no	no	no	no	no	no	no	no	no	partial
Per-handler idempotency	yes	no	no	no	no	no	no	no	no	no	no	no
Sibling C++ plugin pattern	no^†	yes	no	no	no	no	no	no	no	no	no	no
Embedded in-editor agent UI	no	no	yes	no	no	no	no	no	no	no	yes	yes
Domain knowledge / skills	Embedded	9 skills	Hosted	no	no	no	no	no	Genre patterns	Domain system	Workflow scripts	35 skills

†ue-mcp doesn't use the sibling-plugin pattern, but reaches the same end differently: custom tasks via a UeMcpTask extension in ue-mcp.yml, plus full override / extension / new native C++ handlers through its plugin-install system (see the Extensibility table).

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	no	no	no	no	no	no	no	no	no	no	partial
Provide new top-level categories	yes	no	no	no	no	no	no	no	no	no	yes	yes
Ship native C++ handlers (versioned ABI)	yes	no	no	no	no	no	no	no	no	no	partial	partial
Runtime introspection (list / describe)	yes	no	no	no	no	no	no	no	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

Summary

The one-paragraph read on each.

ue-mcp

Leads on breadth, orchestration, and extensibility. Only tool with a YAML flow engine, per-step 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). Covers the full editor surface including levels, gameplay systems (AI, GAS, StateTree, networking), landscape, PCG, foliage, audio, and UI. Ships a first-class PIE Record/Replay system with per-frame drift reports, multi-client recording, Take Recorder lockstep, offline diff, and per-frame PNG capture.

Monolith

The cleanest drop-in: precompiled, Blueprint-only friendly, auto-updater. Strong on Blueprints, materials, animation, Niagara, and engine source. No level or gameplay authoring.

Flop

The only commercial hosted option with an in-editor agent panel. Solid scene and Blueprint coverage and 15k API docs lookup. Paid tiers gate the higher-value tools.

chongdashu

The original community reference, explicitly marked experimental. Coverage stops at basic actors, Blueprints, and a thin slice of materials.

GenOrca

One tier above chongdashu with broader Blueprint, material, and Behavior Tree coverage.

runreal

The no-plugin option: anything Python can do in UE, this can do, but everything routes through Python Remote Execution rather than typed tools.

mcp-unreal

Go single-binary option focused on headless builds, tests, and docs lookup. Editor coverage exists but is narrower than C++ plugin tools.

ChiR24

Condenses actions onto 22 parent tools to save context. Mid-breadth on engine systems, no gameplay framework depth.

unreal-analyzer

Source analysis only. Cannot drive the editor. Useful alongside any of the above.

Soverance

Forked HTTP REST plugin (37 tools, 200+ operations) with deep animation, montage, blend space, and IK retargeter coverage plus a built-in PIE record/replay system for deterministic debugging. 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 600+ tools behind a deliberately minimal surface — tool_search plus python_execute plus a restart-surviving proxy — to save agent context. Strong on Blueprints, animation, State Tree, Behavior Trees / EQS, widgets, Data Tables, and PIE testing, with a built-in AI chat panel, Unreal Insights trace analysis, and a nine-stage workflow state machine that survives editor restarts and recompiles. Windows-focused, UE 5.5+. No material graph, GAS, networking, or record/replay coverage, and terrain/Niagara depth is thin.

vibeue

A C++ plugin that expands Unreal 5.8's own native MCP endpoint (ToolsetRegistry + AgentSkill) rather than running a separate server, so it inherits Epic's zero-server install and layers 32 Python services (1000+ unreal.* methods) plus ~35 domain skill packs on top. Flagship strengths are terrain and world building (landscape sculpting, heightmaps, splines, auto-materials, foliage, procedural FPS blockout, real-world GPS terrain), animation (sequences, montages, state machines, retargeting), audio (MetaSound + SoundCue), UMG with MVVM bindings, and performance profiling (CPU vs GPU frame timing, Unreal Insights traces). Ships an in-editor chat client and connects external agents through the editor terminal. Windows only, UE 5.8+, MIT. No graph-from-JSON authoring, gameplay-framework depth (Behavior Trees, GAS, networking), or PIE record/replay.

Plus...

A few novel features that pull ue-mcp ahead even further.

Feedback System

When the AI hits a missing tool or an incomplete action, the feedback loop catches it and files the gap automatically. Tool coverage doesn't wait for a maintainer to notice — it closes itself.

Flow Engine

Deterministic YAML flows let you lock down multi-step operations into repeatable sequences. The model follows the script instead of improvising — fewer hallucinations, less token waste, predictable results every run.

Plugin Framework

Build custom tools on top of ue-mcp without forking or touching core. Ship a plugin that injects new actions, adds entire categories, or registers native C++ handlers — and install it with a single CLI command.

Want the broadest surface?

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

Get Started →Read the docs

How ue-mcp compares.