Turn any AI into an Unreal Engine developer. 1052 MCP tools + a token-optimized Blueprint format let Claude, Codex, Gemini, or any LLM build Blueprints, materials, VFX, UI, and whole levels — straight from your CLI.
BAIB v2 connects AI agents directly to the Unreal Editor. It ships a full MCP (Model Context Protocol) server inside the editor exposing 1052 automation tools across 22 domains, plus a token-optimized Blueprint text format (AIBP-RT2) that makes AI-driven Unreal development fast, cheap, and reliable. Whether you use Claude Code, OpenAI Codex, Gemini CLI, or your own agent framework — BAIB turns “describe what you want” into compiled, validated Unreal content.

LLM tokens are money. BAIB is built around spending as few of them as possible.
BAIB is built for the CLI-agent era.
Tools come in three tiers: surgical (one precise edit), batch/spec (whole structures in one call), and intent (describe the goal, get the assembly).
Create assets, place nodes, smart-connect with automatic type-conversion, variables, functions, macros, dispatchers, timelines, interfaces, RT2 apply, compile + validation.
Full designer-tree authoring, slots, styling, themes, focus/navigation, list views, live PIE widget inspection.
Expression graphs with stable IDs, instances, functions, layers, parameter collections, Substrate, one-call recipes (decal, post-process, translucent, landscape).
Systems, emitters, module stacks, renderers, simulation stages, intent-style presets (fire, smoke, sparks, explosion…), profiling and cost estimation.
Spawn/transform/properties (including component properties), lights, volumes, sky rigs, World Partition and Data Layers, streaming.
Level sequences, tracks, bindings, CineCamera, AnimBP, montages, blend spaces, notifies, Control Rig tracks.
Enhanced Input, AI Blackboards/Behavior Trees, GAS scaffolding, gameplay tags, save games, data tables, vehicles.
Physics assets and constraints, sound cues and MetaSounds, landscape sculpt/paint/splines, foliage types, PCG graphs.
Lumen, Nanite, VSM, upscalers, post-process presets, scalability, GPU diagnostics.
Config files, plugin management, asset validation, logs, DDC/shader stats, Horde/Zen probes.
Reflection-driven header/scaffold generators for classes, components, subsystems, modules, tests.
Import/export, data tables, collections, reference graphs, bulk rename, naming audits.
| Engine versions | UE 5.2 – 5.8 |
| Platform | Windows editor only (development-time tool; adds nothing to shipped builds) |
| Requirements | Python 3.x only for the optional standalone gateway; PythonScriptPlugin only for the optional run_python tools — the in-editor MCP server has no external dependencies |
| Includes | Full C++ source, user documentation, agent instruction guide, Python gateway + crash watchdog, MCP bridge configs, smoke-test suite |
BAIB does not include or require any AI subscription — bring your own agent. Works with any MCP-compatible client or any chat AI via the clipboard workflow.