# Data Sources
Source: https://docs.chain.link/data-streams/data-sources

> For the complete documentation index, see [llms.txt](/llms.txt).

> **NOTE: Get started**
>
> Data Streams is self-serve, no sales call required. [Sign up](https://app.chain.link) to get started, or follow the
> [sign-up guide](/data-streams/sign-up).

Chainlink Data Streams source pricing data from multiple independent aggregators and vendors across asset classes. The table below summarizes data sourcing for each asset type.

| Asset Type                 | Data Sourcing Info                                                                                                                      |
| -------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| 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                                                                                                                  |

> **NOTE: Need more details?**
>
> For additional information about data sourcing, please [contact us](https://chain.link/contact?ref_id=datastreams).