Douro Labs proposes building and deploying a Pyth pallet, allowing any Polkadot parachain to implement the Pyth oracle within its own runtime environment. Instead of natively integrating the Pyth oracle on individual parachains, a Pyth pallet provides economies of scale and coverage for all existing and future parachains, regardless of the virtual machine used. Deploying Pyth smart contracts on a single EVM-based parachain is straightforward, but managing multiple EVM-based parachains becomes cumbersome over time. Note that Pyth cannot currently be easily deployed on non-EVM-based parachains and deploying on individual non-EVM parachains would cost upwards of US$1mn each. By creating a Pyth pallet, the Pyth oracle becomes available on all Polkadot parachains and future management and upgrades are simplified. Therefore, a Pyth pallet for the entire Polkadot ecosystem creates a publicly available oracle network for the growing parachain ecosystem.

Pyth price feeds utilize a "pull" price update model, in which users are responsible for posting price updates on-chain as needed. There are several advantages to using Pyth's oracle pull model, including gas efficiency, high update frequency, low latency, scalable and reliable infrastructure, and a sustainable economic model. For more information on using Pyth price feeds, please refer to the documentation here.

The Pyth pallet will provide all parachains with all available products of the Pyth Network - Price Feeds (350+ and growing) and Benchmarks. The proposal asks for a grant of US$2.5mn for Douro Labs to build and deploy the Pyth pallet. The grant is requested in the following manner:

**-$1mn upfront grant to begin development. This is in line with our cost estimate of an individual non-evm parachin deployment.
-$1mn grant after development of the pallet is done, pre-audit
-$0.5mn after addressing any audit concerns and ensuring the pallet is ready for use
**
You can find all the details of the proposal here: 

https://docs.google.com/document/d/1VCMDLGYKbCrQvksgAqffvUpn6_pB1B0AaG9HD7EJg0A/edit?usp=sharing

Price feeds for DOT, KSM and ASTR are already live to use across 35+ chains which Pyth is deployed on.

About Douro Labs

Douro Labs is a software development company dedicated to advancing the Pyth Network. Douro Labs was formed by long-time Pyth Network contributors Mike Cahill, Jayant Krishnamurthy, and Ciaran Cronin in July 2023. The company employs close to 20 individuals who previously worked at firms such as Goldman Sachs, Jump Crypto, BNP Paribas, Amazon Web Services and Chorus One. The company is focused on contributing alongside other data providers and building developer-focused oracle tooling and core protocol infrastructure. Douro Labs is building oracle tooling, products, and Web3 infrastructure that will expand the Pyth Network's suite of decentralized data services and enhance access to real-time, once-exclusive market data for all blockchain participants.