Oracle API Guide

Connect smart contracts to real-world data

Blockchain Oracles

Oracles provide external data to smart contracts. Build DeFi, insurance, and prediction markets with reliable data feeds.

Major Oracle Providers

Chainlink

  • Price feeds
  • VRF (randomness)
  • Cross-chain

Band Protocol

  • Fast oracle
  • Multi-chain
  • CosmWasm

Tellor

  • Decentralized
  • Permissionless
  • Tokenized

Use Cases