# Oracles

Oracles are systems that enable smart contracts to access external data or events from outside the blockchain, such as web APIs, price feeds, or real-world information.

Check the available oracles below:

* [Supra](https://xdocs.ngd.network/integrations/oracles/supra)
* [Neo Oracle Gateway](https://xdocs.ngd.network/integrations/oracles/neo-oracle-gateway)