> For the complete documentation index, see [llms.txt](https://docs.lumia.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lumia.org/ecosystem/oracle-providers.md).

# Oracle providers

**Who this is for:** developers who need price or other off-chain data on-chain, and want to know which oracle networks work with Lumia before picking one.

Integration steps and supported feeds are on the linked build guide for each provider.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>API3</strong></td><td>First-party oracle network: data delivered directly by the data provider.</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-data-feeds-with-api3">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-data-feeds-with-api3</a></td></tr><tr><td><strong>Supra</strong></td><td>Oracle network providing price and other data feeds.</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-price-feeds-with-supra">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-price-feeds-with-supra</a></td></tr></tbody></table>

### API3

API3 is a first-party oracle network: data is delivered directly by the data provider itself rather than passed through a separate third-party node-operator layer.

Setup: [`/build/oracles/api3`](https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-data-feeds-with-api3).

### Supra

Supra is an oracle network providing price and other data feeds.

Setup: [`/build/oracles/supra`](https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/build-on-lumia/oracles/read-price-feeds-with-supra).

### Why attestation is covered separately

Asset-backing attestation (proof of reserve, custody attestation) is treated as a distinct trust question from price oracles on Lumia: [`/lumia/chain-security/oracles-and-attestation`](https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/ecosystem/lumia/chain-security/oracles-and-attestation).