Tellor (TRB) is a decentralized 'oracle' — infrastructure that feeds real-world data (like prices) onto blockchains so smart contracts can use it. Its distinguishing pitch versus bigger oracles is a focus on censorship-resistance and permissionless access: data providers compete to submit values and stake TRB as a bond, with a dispute system to challenge bad data. Rather than optimizing for polished enterprise partnerships, Tellor optimizes for being hard to censor or capture. TRB is the token used to stake, report data and secure the system. It's a small-cap in the oracle category, which is dominated by much larger players.
Where it stands today: Tellor launched 'Tellor Layer', a mainnet upgrade turning it from a simple oracle tool into a more foundational, modular platform for building decentralized apps with unified token security. It has some integrations (a few protocols use it as a primary oracle). But the honest reality is stark: oracles are a winner-take-most category dominated by Chainlink (with 750+ integrations) and the fast-growing Pyth, leaving Tellor struggling for meaningful market share, and post-mainnet adoption metrics are still unclear. It also has two structural concerns: no fixed token supply (TRB is minted continuously to reward data providers, so supply grows over time), and heavy concentration (a small number of addresses hold a large majority of the supply, a manipulation risk). So today it's a differentiated but small oracle fighting an uphill battle against entrenched giants.