> For the complete documentation index, see [llms.txt](https://docs.emc.network/emc-testnet/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emc.network/emc-testnet/emc-testnet/how-to-use-oracles-in-applications/conclusion.md).

# Conclusion

Oracles play an important role in blockchain applications, enabling smart contracts to access data from the outside world. Through this guide, you can integrate and use oracle services in applications on the EMC chain, thereby expanding the functionality and application scope of smart contracts.