Oracalize is an oracle service for smart contracts and blockchain applications. It acts as a data carrier for decentralized apps by serving as a reliable connection between Web APIs and decentralized applications known as Dapps. Oraclize provides a method of introducing new informations from web API's onto blockchains. Oracalize creates smart contracts that sends a query using an API call that allows Oracalize to communicate with web API's and pass results back to the smart contracts.
Visual representation of Oracalize.
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Further Resources
New blockchain integrations and beyond - Oraclize
Oraclize
News
Using APIs in Your Ethereum Smart Contract with Oraclize
Matt Solomon
News