
Quay
The Quay backend API enables marketplaces to be built using trusted Seaport contracts.

What is Quay?
Quay is a turnkey solution for developers looking to quickly and securely launch an NFT marketplace using OpenSea's reputable Seaport contracts. The Quay project is a powerful backend API implemented in the Rust programming language. By leveraging Quay, orderbook-based NFT marketplaces can support ERC-721, ERC-1155, and ERC-20 token standards on any blockchain that employs an Ethereum Virtual Machine.
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Developer resources from Alchemy

What is the Ethereum Pectra upgrade? Dev guide to 11 EIPs
The Ethereum Pectra upgrade bundles 11 EIPs, from smart wallet capabilities to staking mechanics and rollup data efficiency. Discover what changes and why it matters.

Up to 40% cheaper data APIs
As part of our mission to bring 1 billion users onchain, we're reducing Compute Unit costs for our NFT API, Token API and Transfers API starting today.
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Collector Crypt runs the settlement layer for collectible real-world assets on Alchemy Solana RPC and Webhooks, with nearly $40M in tokenized trading card inventory onchain.
Quay alternatives
Explore web3 competitors and apps like Quay.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

