Config oracle
Serves the canonical, signed protocol configuration that every service discovers at startup.
The validator hub
xchain-hub is the platform's config oracle and cross-chain coordinator: a network of staked validators that runs a decentralized price oracle, attests cross-chain trades, and governs the protocol, without ever taking custody of funds.
What the hub does
Coordination, not custody
Decentralized price oracle
Validators aggregate prices by trimmed median and finalize each round through PBFT consensus, powering fiat-priced fees and dispensers.
Cross-chain attestation
Validators that support both chains reach consensus that a swap's source action is real and confirmed before settlement.
Governance
Protocol parameters change only through a transparent off-chain validator governance process: a 7-day voting period with 2/3 approval and quorum. No single party has unilateral control.
For node operators
The hub is bundled and managed by xchain-node. To run the full platform yourself (including a hub), start with the node operator quickstart.