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Yield Protocol Liquidator

Yield Protocol Liquidator is a Rust command-line keeper that monitors fyDAI-ETH borrower health and liquidation auctions, triggers auctions for undercollateralized positions, and attempts to participate using Uniswap V2 flash-loan liquidity.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Yield Protocol Liquidator — OpenViST project profile in DeFi.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when you need a continuously polling command-line process to initiate auctions for undercollateralized fyDAI-ETH positions and attempt profitable participation.

Who it is for

  • Operators building or running a keeper for Yield Protocol liquidation auctions.
  • Developers familiar with Ethereum nodes, contract-address configuration and private-key-based transaction signing.

Documented uses

  • Track borrower debt health and auction data as new blocks arrive.
  • Trigger liquidation auctions for underwater positions.
  • Attempt auction participation using Uniswap V2 flash-loan funds when the minimum-profit condition is met.
  • Set a polling interval, persistence file and minimum profit per liquidation.
Before you choose

Requirements & limits

  • The tool requires an Ethereum node endpoint and a private key for signing transactions.
  • Its JSON configuration must identify the relevant Yield Protocol contracts, Uniswap V2 WETH/DAI pair and flash-loan contract.
  • The README describes an event loop that refreshes data on each block and bumps gas prices for pending transactions.
  • The README directs users to a test environment and recommends a 15-second polling interval for mainnet.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build the liquidator and prepare its configuration

Compile the Rust CLI and prepare the files and settings it requires before running it.

Before you start

  • Rust and Cargo
  • Contract addresses for Controller, Liquidations, the Uniswap V2 WETH/DAI pair and the Flash loan contract
  • An Ethereum node endpoint
  • A private-key file; the key must not have a 0x prefix

Steps

  1. Build a release binary with the command below.

    Documented command
    cargo build --release

  2. Create a JSON configuration file containing the required contract addresses.

  3. Prepare a private-key file without a 0x prefix and choose the node URL, polling interval, persistence file and minimum-profit setting.

Expected outcome

A release binary and the configuration inputs needed to launch the CLI.

Guide limitations

  • This covers documented build and configuration preparation, not successful execution or liquidation.
  • The README recommends a 15-second interval for mainnet.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
yieldprotocol/yield-liquidator · Official homepage title · retained in its source language
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