Tellor

Tellor is a decentralized oracle protocol that provides a transparent and permissionless system for smart contracts to easily access any required data.

The protocol encourages an open, permissionless network of data reporting and data validation. This ensures that data can be provided by anyone and checked by everyone, maintaining a high level of transparency.

Some features of Tellor include:

1. **SpotPrice:** This feature enables you to get any market data from any API(s). It's designed to be flexible and capable of handling a wide range of market data types.

2. **Custom:** This allows you to get any data type you need. It is designed to be highly customizable to suit the specific needs of your project.

3. **Data Reporting:** You can become a reporter for the protocol. The data provided to the protocol is supplied by a network of reporters running Telliot, an open-source reporting client.

Tellor is constantly updating and improving, with recent news announcing that the code for Tellor Layer has officially gone to audit. This marks a significant milestone in their journey towards providing a robust decentralized oracle protocol. For more detailed information, you can check out their official Docs and Tutorials.