
API3
FreeDecentralized Oracles
API3 supplies first-party oracle data feeds that help Mantle apps use verifiable offchain market and API data onchain.

Decentralized Oracles
API3 supplies first-party oracle data feeds that help Mantle apps use verifiable offchain market and API data onchain.
API3 builds oracle infrastructure around first-party data providers, aiming to deliver data to smart contracts without relying on third-party relay networks.
Its dAPIs combine signed feeds from individual providers into onchain data products that developers can integrate into lending markets, stablecoins, derivatives, and other DeFi systems.
API3 also supports OEV-aware designs and uses Airnode for direct API connectivity, giving Mantle teams a way to work with price feeds and external data that is built for transparency, verification, and practical smart contract use.
Decentralized Exchanges • Arbitrum
Decentralized Exchanges • Arbitrum