tf2-arbitrage

Bot for arbitraging TF2 items on different sites for profit.

This bot will find deals, request trades and notify tf2-express to accept.

Donate

• BTC: bc1qntlxs7v76j0zpgkwm62f6z0spsvyezhcmsp0z2
• Steam Trade Offer

You can reach me at Steam, my Discord server or Discord profile.

How does it work?

• Using a Firefox profile, login to the sites listed below
• Will check MongoDB for saved cookies
• If outdated, get new cookies using Selenium
• Save cookies, such that requests can imitate a legitimate internal API request
• Fetches prices from Prices.tf as a comparison basis
• Fetches prices from STN, taking stock into consideration
• Fetches prices from Quicksell.store
• Fetches prices from Sfuminator
• Compares prices between sites, and finds deals
• If a Prices.tf price is included in a deal, check Backpack.TF for buyers/sellers with a matching price
• If buyer/seller is from Backpack.TF, get their Trade URL
• Save up to 3 pages of classifieds for Trade URLs, so they can be used later (can skip fetching)
• Send deals using a TCP socket so tf2-express can act on the trades
• When tf2-express has accepted a "buy deal" trade offer, send the "sell deal" request to one of the trading sites (different for Backpack.TF)
• Repeat step 6-16 (fetching Prices.tf is uneccessary when we are connected to the websocket)

Supported sites

• Backpack.TF
• STNTrading.eu
• Quicksell.store
• Sfuminator.tf

Scrap.TF is not supported, due to their ToS.

Installation

• Clone the repo and install the packages pip install -r requirements.txt
• The bot uses MongoDB, so pymongo needs to work
• Install geckodriver

Setup

• Have a tf2-express bot setup and ready to go
• If geckodriver is not added to PATH, this needs to be specified in GECKODRIVER_EXECUTABLE_PATH in the config. If it is in PATH, do not change this value
• Create a new Firefox profile and login to all the sites listed above (STN is not neccessary). Copy the Root Directory of this Firefox profile. This is your FIREFOX_PROFILE_PATH in the config
• Register a STN API key at https://stntrading.eu/dev/apikey
• Make sure you have credits for your API calls. This can be increased at https://stntrading.eu/dev/credits

Configuration

• Specify STEAM_ID in the config, this has to match the SteamID64 for the owner of the STN API key
• Other optional modifications to the config

Running

• Start tf2-arbitrage by running python main.py
• Start a tf2-express instance