> For the complete documentation index, see [llms.txt](https://docs.creditcoin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure.md).

# DApp Builder Infrastructure

- [Infrastructure Overview](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/infrastructure-overview.md): Summarizes the infrastructure DApp builders must set up in order to effectively use the Creditcoin Oracle.
- [Source Chain Smart Contracts](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/source-chain-smart-contracts.md): An overview of source chain smart contracts and the best practice pattern to securely query their data on Creditcoin using the Creditcoin oracle.
- [Universal Smart Contracts](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/universal-smart-contracts.md)
- [DApp Design Patterns](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/dapp-design-patterns.md): An overview of common design patterns for enabling seamless user interactions in a DApp powered by Universal Smart Contracts
- [Offchain Oracle Workers](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/offchain-oracle-workers.md): An overview of Offchain Workers and how to use them to streamline user interactions.
- [USC Tutorials](https://docs.creditcoin.org/usc/usc-v1/dapp-builder-infrastructure/usc-tutorials.md): Video tutorials to learn Creditcoin USC


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