Data Sources
Chainlink Data Feeds and Data Streams source data across multiple independent aggregators, vendors, and authoritative entities. The table below summarizes sourcing models for each asset type.
For more information about evaluating data quality, assessing liquidity and distribution risks, understanding single-source providers, and implementing risk mitigation strategies, see Evaluating Data Sources and Risks.
| Asset Type | Data Sourcing Info |
|---|---|
| Crypto Price | 3+ crypto price data aggregators and/or market data vendors using CEX and/or DEX data |
| Crypto State Price | 3+ crypto price data aggregators and/or market data vendors using DEX pool state data |
| Forex | 3+ market data vendors |
| Precious Metals | 3+ market data vendors |
| US Oil | 3+ market data vendors |
| US Equities | 3+ market data vendors |
| UK & Euro ETFs | 2+ market data vendors using 15 minute delayed data |
| SmartData PoR (offchain) | Sourced directly from custodian, fund administrator, auditor, security auditor, asset manager, regulated appraiser of assets, or regulator approved source |
| SmartData PoR (cross chain) | On-chain data |
| SmartData NAV (offchain) | Sourced directly from Fund Administrator or Asset Manager of the fund |
| Exchange Rate Feeds | On-chain data |
| Crypto MarketCap | 3+ crypto price data aggregators and/or market data vendors |
| Composite Index Feeds | DON calculated index values from 3+ crypto price data aggregators and/or market data vendors |
| Central Bank Rates Feeds | Direct from Central Bank's API |
| Crypto LWBA | 3+ crypto price data aggregators and/or market data vendors using CEX orderbook data to produce Liquidity Weight Bid/Ask and Mid values |
| Crypto State Price | 3+ crypto price data aggregators and/or market data vendors using DEX pool state data |
| Data Link Long Tail Crypto | Single source from 1 crypto price data aggregator |
| Forex | 3+ market data vendors |
| Precious Metals | 3+ market data vendors |
| US Equities | 3+ market data vendors |