Chainlink is the big data oracle in crypto, but upstarts like API3 and Flux say they can do it cheaper and with more decentralization. - Protocol

Many crypto industries quietly depend on oracles, the data feeds that smart contracts tap into. Startups are challenging dominant player Chainlink, saying they can do it cheaper, more transparently, and with less centralized control.

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What is a blockchain oracle? What is the oracle problem? Why can't blockchains make API calls? This is everything you need to know about off-chain dat

Chainlink is the big data oracle in crypto, but upstarts like API3 and Flux say they can do it cheaper and with more decentralization. - Protocol, digdig.io zoom hack

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