Crafting minds for Minecraft with LLMs and Mineflayer!
FAQ | Discord Support | Blog Post | Contributor TODO
Warning
Do not connect this bot to public servers with coding enabled. This project allows an LLM to write/execute code on your computer. While the code is sandboxed, it is still vulnerable to injection attacks on public servers. Code writing is disabled by default, you can enable it by setting allow_insecure_coding
to true
in settings.js
. We strongly recommend running with additional layers of security such as docker containers. Ye be warned.
- Minecraft Java Edition (up to v1.21.1, recommend v1.20.4)
- Node.js Installed (at least v14)
- One of these: OpenAI API Key | Gemini API Key | Anthropic API Key | Replicate API Key | Hugging Face API Key | Groq API Key | Ollama Installed. | Mistral API Key | Qwen API Key [Intl.]/[cn] | Novita AI API Key |
-
Make sure you have the requirements above.
-
Clone or download this repository (big green button)
-
Rename
keys.example.json
tokeys.json
and fill in your API keys (you only need one). The desired model is set inandy.json
or other profiles. For other models refer to the table below. -
In terminal/command prompt, run
npm install
from the installed directory -
Start a minecraft world and open it to LAN on localhost port
55916
-
Run
node main.js
from the installed directory
If you encounter issues, check the FAQ or find support on discord. We are currently not very responsive to github issues.
You can configure project details in settings.js
. See file.
You can configure the agent's name, model, and prompts in their profile like andy.json
.
API | Config Variable | Example Model name | Docs |
---|---|---|---|
OpenAI | OPENAI_API_KEY |
gpt-4o-mini |
docs |
GEMINI_API_KEY |
gemini-pro |
docs | |
Anthropic | ANTHROPIC_API_KEY |
claude-3-haiku-20240307 |
docs |
Replicate | REPLICATE_API_KEY |
replicate/meta/meta-llama-3-70b-instruct |
docs |
Ollama (local) | n/a | llama3 |
docs |
Groq | GROQCLOUD_API_KEY |
groq/mixtral-8x7b-32768 |
docs |
Hugging Face | HUGGINGFACE_API_KEY |
huggingface/mistralai/Mistral-Nemo-Instruct-2407 |
docs |
Novita AI | NOVITA_API_KEY |
gryphe/mythomax-l2-13b |
docs |
Qwen | QWEN_API_KEY |
qwen-max |
Intl./cn |
Mistral | MISTRAL_API_KEY |
mistral-large-latest |
docs |
xAI | XAI_API_KEY |
grok-beta |
docs |
If you use Ollama, to install the models used by default (generation and embedding), execute the following terminal command:
ollama pull llama3 && ollama pull nomic-embed-text
To connect to online servers your bot will need an official Microsoft/Minecraft account. You can use your own personal one, but will need another account if you want to connect too and play with it. To connect, change these lines in settings.js
:
"host": "111.222.333.444",
"port": 55920,
"auth": "microsoft",
// rest is same...
Caution
The bot's name in the profile.json must exactly match the Minecraft profile name! Otherwise the bot will spam talk to itself.
To use different accounts, Mindcraft will connect with the account that the Minecraft launcher is currently using. You can switch accounts in the launcer, then run node main.js
, then switch to your main account after the bot has connected.
If you intend to allow_insecure_coding
, it is a good idea to run the app in a docker container to reduce risks of running unknown code. This is strongly recommended before connecting to remote servers.
docker run -i -t --rm -v $(pwd):/app -w /app -p 3000-3003:3000-3003 node:latest node main.js
or simply
docker-compose up
When running in docker, if you want the bot to join your local minecraft server, you have to use a special host address host.docker.internal
to call your localhost from inside your docker container. Put this into your settings.js:
"host": "host.docker.internal", // instead of "localhost", to join your local minecraft from inside the docker container
To connect to an unsupported minecraft version, you can try to use viaproxy
Bot profiles are json files (such as andy.json
) that define:
- Bot backend LLMs to use for chat and embeddings.
- Prompts used to influence the bot's behavior.
- Examples help the bot perform tasks.
By default, the program will use the profiles specified in settings.js
. You can specify one or more agent profiles using the --profiles
argument:
node main.js --profiles ./profiles/andy.json ./profiles/jill.json
LLM models can be specified as simply as "model": "gpt-4o"
. However, you can specify different models for chat, coding, and embeddings.
You can pass a string or an object for these fields. A model object must specify an api
, and optionally a model
, url
, and additional params
.
"model": {
"api": "openai",
"model": "gpt-4o",
"url": "https://api.openai.com/v1/",
"params": {
"max_tokens": 1000,
"temperature": 1
}
},
"code_model": {
"api": "openai",
"model": "gpt-4",
"url": "https://api.openai.com/v1/"
},
"embedding": {
"api": "openai",
"url": "https://api.openai.com/v1/",
"model": "text-embedding-ada-002"
}
model
is used for chat, code_model
is used for newAction coding, and embedding
is used to embed text for example selection. If code_model
is not specified, then it will use model
for coding.
All apis have default models and urls, so those fields are optional. Note some apis have no embedding model, so they will default to word overlap to retrieve examples.
The params
field is optional and can be used to specify additional parameters for the model. It accepts any key-value pairs supported by the api. Is not supported for embedding models.
Some of the node modules that we depend on have bugs in them. To add a patch, change your local node module file and run npx patch-package [package-name]
@misc{mindcraft2023,
Author = {Kolby Nottingham and Max Robinson},
Title = {MINDcraft: LLM Agents for cooperation, competition, and creativity in Minecraft},
Year = {2023},
url={https://github.com/kolbytn/mindcraft}
}