X Join the global Web3 community at SmartCon 2022. Register today with the code BUILDER to access a special rate.

Chainlink Architecture Basic Request Model Decentralized Data Model Off-Chain Reporting Ethereum Proof-of-Stake Merge

Introduction to Data Feeds Using Data Feeds Data Feeds API Reference Historical Price Data Feed Registry 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 Metis Data Feeds Klaytn Data Feeds L2 Sequencer Uptime Feeds

Introduction to Chainlink VRF Get a Random Number Programmatic Subscription Subscription Manager UI Security Considerations Best Practices Supported Networks 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 Testnet Oracles Data Provider Nodes API Reference

Introduction to Chainlink Keepers Time-based Automation Custom Logic Automation Create Keepers-compatible Contracts Manage your Upkeeps Creating Flexible Upkeeps Example Contracts EthBalanceMonitor Keepers Architecture Supported Networks Keepers Economics Keepers Release Notes FAQs

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

Hackathon Resources

Note on Resources

For a comprehensive list of resources, refer to the Learning Resources page.

Hackathon & Project Resources

If you're looking to just start jumping into stuff, here is a directory that can help you out.

Want to check out winners code of past hackathons to get some inspiration?

Check out the example winners projects here.

Boilerplate code, and starter kits

Be sure to check the docs above for remix examples!

Support Communications

Always refer back to the getting help page for the latest information about how to get support.

Tutorials

Be sure to check the documentation in the links above for in depth-descriptions of everything.

New? See the Getting Started Guide.

Inspiration

The chainlink community is some of the most inviting groups of engineers always looking to help you grow to the next stage.

Join the community

Blockchain Specific

Need integration support?

Talk to an expert

Watch developer tutorials

Get technical support