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Chainlink Architecture Basic Request Model Decentralized Data Model Off-Chain Reporting

Introduction to Data Feeds Using Data Feeds Historical Price Data Feed Registry API Reference Using ENS with Data Feeds Contract Addresses Ethereum Data Feeds BNB Chain Data Feeds Polygon (Matic) Data Feeds Gnosis Chain (xDai) Data Feeds HECO Chain Data Feeds Avalanche Data Feeds Fantom Data Feeds Arbitrum Data Feeds Harmony Data Feeds Optimism Data Feeds Moonriver Data Feeds Moonbeam Data Feeds

Introduction to Chainlink VRF Get a Random Number Example Contracts Security Considerations Best Practices Contract Addresses Migrating to VRF v2

Introduction to Using Any API Make a GET Request Single Word Response Multi-Variable Responses Array Response Large Responses Existing Job Request Find Existing Jobs API Reference Contract Addresses

Introduction to Chainlink Keepers Keepers-compatible Contracts Register an Upkeep Manage your Upkeeps Utility Contracts EthBalanceMonitor Keepers Architecture Supported Networks Keepers Economics FAQs

Videos and Tutorials Acquire testnet LINK Fund Your Contracts Install Frameworks LINK Token Contracts Developer Communications Getting Help Data Provider Nodes Selecting Data Feeds Hackathon Resources Contributing to Chainlink

Keepers Utility Contracts

Overview

Utility contracts are tools to help developers quickly deploy Keepers for specific use-cases. This list will be updated as more utility contracts become available.

Current utility contracts

`EthBalanceMonitor`

This utility contract reviews the balances of a list of addresses and automatically tops them up. This automates the monitoring of Upkeep for registered contracts. To use this contract, you must add an address to the balance monitor Upkeep and make sure the balance monitor upkeep is well funded. Review the EthBalanceMonitor documentation to get started.

What's Next

› `EthBalanceMonitor`

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