one-hollar

Arbitrage bot trading Hollar with USDT, USDC, sUSDS and sUSDe on Hydration chain.

Run

• node.js version v22.14.0 or newer
• npm ci --ignore-scripts
• npm run start
• npm run test

Configuration

• configs/config.json - main configuration file.
• configs/account.json - encrypted file holding account's seed. File can be created e.g. by exporting account from polkadot.js extension.
• .env - environment file with password to unlock account.json

configs/config.json

• url - hydration RPC url that will be used to get chain state and submit transactions.
• cooldown - number of blocks between trades. e.g. 1 means that bot can submit tx on every second block. Bot creates forceBatch with all trades in a block.
• assets - assets to be arbed against Hollar. Assets can be removed or supported assets can be added. Supported assets: USDT, USDC, sUSDe, sUSDS.
• assets.{XXX}.assetId - asset id on Hydation chain.
• assets.{XXX}.{buy|sell}.threshold - price volatility bot accepts in %. e.g. buy.threshold = 0.999 for pair with target price 1.0$ means bot will not buy Hollar until its' price is <= 0.999$.
• assets.{XXX}.{buy|sell}.minTrade - min. traded amount per opportunity.
• assets.{XXX}.{buy|sell}.maxTrade - max. traded amount per opportunity. This walue can be set bigger than acount balance and in that case bot will trade whole asset balance in single trade if possible.
• coinGecko.url - coinGecko api url, only public api is supported.
• coinGecko.sUSDe - coinGecko's sUSDe asset id.
• coinGecko.sUSDS - coinGecko's sUSDS asset id.
• coinGecko.precision - precision of prices returned by coinGecko api.
• coinGecko.cooldown - number of blocks between price update.

Attribution

CoinGecko oracle is powerd by CoinGecko API