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Demonstrator to explore the post-monetary design space
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FIN4Xplorer is a decentralised design for a bottom-up and multidimensional finance system with the aim of making communities healthier, more social, and sustainable. It is part of the FLAG-ERA-funded project FuturICT 2.0.

ℹ️ Explanatory video


FIN4Xplorer allows any person, organisation, and public institution to create tokens, which stand for a positive action. Users can claim and prove these actions, for which they receive said tokens. By designing the system to be open to markets tailored to the respective actions, incentives are generated. The main characteristics of this system are its decentralization, immutability, rewards, and bottom-up approach.

Quick start

Install dependencies

# the basics
sudo apt-get install git build-essential python

# node v10
curl -o- | bash
source ~/.bashrc
nvm install 10.0.0
nvm use 10.0.0

# on macOS, to prevent gyp related errors
npm explore npm -g -- npm install node-gyp@latest

# truffle
npm install -g truffle
npm install -g ganache-cli

# project
npm install # requires apparently more than 1GB of memory to run

For deployment

Add and fill this file: src/config/deployment-config.json

    "MNEMONIC": "",
    "INFURA_API_KEY": "",
    "FAUCET_URL": ""

The mnemonic gets used for deploying (e.g. truffle migrate --network rinkeby), therefore the account has to have sufficient funds on the respective network. The infura API key can be obtained by creating a project on it is the "Project ID" under "View Project".

Mapping port 3000 to 80 (optional)

To serve your application on the default port 80 (and therefore have the port number dissapear in the browser) instead of 3000, you can use nginx in the following way (copied from here):

sudo apt-get install nginx
sudo rm /etc/nginx/sites-enabled/default
sudo nano /etc/nginx/sites-available/fin4x

Paste this in:

server {
  listen 80;
  server_name fin4x;
  location / {
    proxy_set_header  X-Real-IP  $remote_addr;
    proxy_set_header  Host       $http_host;
sudo ln -s /etc/nginx/sites-available/fin4x /etc/nginx/sites-enabled/fin4x
sudo service nginx restart

Compile and migrate the smart contracts

  1. truffle compile
  2. ganache-cli --port=7545 --allowUnlimitedContractSize
  3. truffle migrate to place the smart contract on the local blockchain
  4. install the MetaMask browser extension, paste the MNEMONIC from Ganache into the seed input and create a network with as custom RPC

Use the app

npm start


Our documentation is located at in English and German.

To update the .po files for the German translation in docs/locales/de run:

sphinx-intl update -p _build/gettext -l de

If you haven't done so before or if it doesn't update properly, delete the _build folder and run this build command:

sphinx-build -b gettext . _build/gettex

Then run the update command again.

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