Welcome

About Tellor

Tellor is an immutable decentralized oracle protocol that incentivizes an open, permissionless network of data reporting and data validation, ensuring that data can be provided by anyone and checked by everyone.

Built for any data type, our network of reporters supports your basic spot prices, more sophisticated pricing specs (TWAP/VWAP), Snapshot Vote Results, or any custom data needs you have. If your data can be verified, Tellor can bring it on-chain.

Before you get started

• Learn Tellor's Fundamental Concepts

• Read the FAQ

• Read the Whitepaper

• Review the Contracts Overview

Helpful Things

Need a Price Feed?

Fill out this form for more detail

What Networks is Tellor on?

Mainnets

• Ethereum

• Polygon

• Gnosis Chain

• Optimism

• Arbitrum

• Filecoin FVM

• Manta Pacific

• Linea

• Polygon zkEVM

• Fraxtal

• BOB

• zkSync Era Mainnet

• Base

Testnets

• Sepolia

• Amoy

• Chiado

• Optimism Sepolia

• Arbitrum Sepolia

• FVM Calibration

• Manta Pacific Testnet

• Base Sepolia

• Linea Sepolia

• Cardona Testnet

• Fraxtal Testnet

• Puff-BOB

• zkSync Era Sepolia

*this list will be updated as we move onto more chains. If you'd like us to deploy somewhere we aren't let us know!

Need Testnet Tokens (TRB)?

Testnet TRB is obtained differently depending on the network you’re using. In some cases it's only attainable by request and for others a faucet is an option.

Sepolia, Goerli, and Filecoin Calibration

Reach out in our discord, or create a tweet to @trbfaucet. If you tweet @trbfaucet make sure to include your wallet address and the network you’re testing on. For example:

Note: It may take a few hours for the faucet to process your request.

Polygon Mumbai

Mumbai

Faucet: https://mumbai.polygonscan.com/address/0x3251838bd813fdf6a97D32781e011cce8D225d59#writeContract

Gnosis Chain Chiado

Faucet: https://blockscout.chiadochain.net/address/0xe7147C5Ed14F545B4B17251992D1DB2bdfa26B6d/write-contract#address-tabs

Arbitrum Goerli

Faucet: https://goerli.arbiscan.io/address/0x3251838bd813fdf6a97D32781e011cce8D225d59#writeContract#F5

Optimism Goerli

Faucet: https://goerli-optimism.etherscan.io/address/0xd71F72C18767083e4e3FE84F9c62b8038C1Ef4f6#writeContract#F5

Developer Tools

Tellor Github

Data Specs

Live Feeds

QueryID Builder

Get Testnet TRB

Simple Funding Script

AutoTipper Bot

Educational Resources

Tellor School

Best Practices

Dev Calls

Reporter Calls

Weekly Updates

Get Direct Help

Ask us a question in our discord

Tell us what you need and we'll get in touch