# Engine API reference — Dola tools · Dola AI

Tools

# Engine API reference

Invented APIs are a common failure of general AI tools in Unreal. Dola looks up your engine's real classes and functions for Blueprint and editor work, can check them for C++ too, and you can ask it directly.

Last updated 10 October 2026

## [Tools in this category](#tools)

- [Search the Engine APILiveSearches Unreal Engine's C++ and Blueprint API by keyword, so you can find the class or function for a job without leaving chat.](https://dolaai.pro/docs/tools/engine-api/search-api)

- [Class functions and propertiesLiveLists the functions and properties of an Unreal class with what they do, so Dola can write correct calls in C++ or Blueprints.](https://dolaai.pro/docs/tools/engine-api/class-api)

- [Verify a symbol existsLiveChecks that a class, function, or property really exists in your engine version before Dola uses it, to avoid invented APIs.](https://dolaai.pro/docs/tools/engine-api/symbol-exists)

- [Blueprint-exposed functionsLiveShows which engine functions are available as Blueprint nodes, and under which names, for a class or topic you are working on.](https://dolaai.pro/docs/tools/engine-api/bp-nodes)

- [Class relationshipsLiveExplores how engine classes relate, such as parent classes and what each one adds, to help you choose the right base class.](https://dolaai.pro/docs/tools/engine-api/engine-graph)

## [What you need](#requirements)

- The Dola desktop app, signed in, with your Unreal project attached

## [Safety notes](#safety)

- Read-only: it looks at your project and does not change it.

## [Guides](#guides)

- [First Blueprint workflow](https://dolaai.pro/docs/first-blueprint) — How Dola edits Blueprints in the live Unreal Editor: what to have open, how to phrase the request, and how changes are compiled and saved.

- [First C++ assistance](https://dolaai.pro/docs/first-cpp) — How Dola writes and edits Unreal C++ in your project's Source folder, can check engine APIs, and leaves the build to you in Unreal.

[Try me on your project!](https://dolaai.pro/signup)