contracts.md

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Chainlink turns your smart contracts into hybrid smart contracts, giving them access to real-world data and services.

Get Data Feeds in your Smart Contracts

Retrieve the latest prices and data points of assets in your smart contracts.

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Generate Verifiable Random Numbers

Use Chainlink VRF to consume randomness in your smart contracts.

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Call External APIs from Smart Contracts

Request & Receive data from any API using the Chainlink contract library.

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Automate and Maintain with Chainlink Keepers

Chainlink Keepers provide smart contract developers, decentralized applications (dApps), and decentralized autonomous organizations (DAOs) with a highly reliable, decentralized, and cost-efficient method of automating smart contract functions and regular contract maintenance.

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New to Ethereum and Smart Contracts?

Build your first smart contract connected to off-chain data with our Beginner's Walkthrough

Start Building

Chainlink Architecture

Discover how the Chainlink ecosystem bridges the gap between off-chain data and smart contracts.

Architecture

Discover On-chain Reference Data

Find everything you need to build your connected smart contracts on the world's first oracle market

Chainlink Market ↗

Explore Chainlink Developer Tools

Contracts ↗

Test Helpers ↗