[Crypto Q&A] Can Ethereum contracts pull data using third-party APIs?

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No, Ethereum contracts cannot pull data from external information sources in this way. It is however possible to push data from external sites (e.g. weather sites, stock prices) to Ethereum contracts through transactions. There are “oracle” services that are compatible with the Ethereum network that will pull/push data to the Ethereum network for a fee.

weather sites, stock prices to Ethereum contracts through transactions.

There are “oracle” services that are compatible with the Ethereum network that will pull/push data to the Ethereum network for a fee.