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  • The Basics
    • Welcome
    • Fundamentals
    • Contracts Overview
    • Contracts Reference
    • Tutorials
  • Getting Data
    • Introduction
    • Solidity Integration
    • User Checklists
    • Local Testing
    • Testnet
    • Creating a Query
    • Funding a Feed
    • Tellor Functions
    • DataSpecs Registry
    • SnapShot Vote Results
  • Reporting Data
    • Introduction
    • Becoming a Reporter
    • Getting Paid
  • Disputing Data
    • Introduction
    • Monitoring
    • How to Dispute
    • Voting/Resolution
  • Vulnerability Disclosure
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  • About Tellor
  • Helpful Things
  • Get Direct Help

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  1. The Basics

Welcome

NextFundamentals

Last updated 7 months ago

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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 , our network of 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 .

Before you get started

Helpful Things

Need a Price Feed?

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 !

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

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

Polygon Mumbai

Mumbai

Gnosis Chain Chiado

Arbitrum Goerli

Optimism Goerli

Developer Tools
Educational Resources

Get Direct Help

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

Faucet:

Faucet:

Faucet:

Faucet:

discord
@trbfaucet
@trbfaucet
https://mumbai.polygonscan.com/address/0x3251838bd813fdf6a97D32781e011cce8D225d59#writeContract
https://blockscout.chiadochain.net/address/0xe7147C5Ed14F545B4B17251992D1DB2bdfa26B6d/write-contract#address-tabs
https://goerli.arbiscan.io/address/0x3251838bd813fdf6a97D32781e011cce8D225d59#writeContract#F5
https://goerli-optimism.etherscan.io/address/0xd71F72C18767083e4e3FE84F9c62b8038C1Ef4f6#writeContract#F5
Tellor Github
Data Specs
Live Feeds
QueryID Builder
Get Testnet TRB
Simple Funding Script
AutoTipper Bot
Tellor School
Best Practices
Dev Calls
Reporter Calls
Weekly Updates
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