
TopBidder
An Ethereum NFT auction protocol that applies Radical Markets self-pricing to ERC-721 commons.

What is TopBidder?
TopBidder is an Ethereum auction protocol where each rNFT carries a self-assessed price set by its current holder under a Harberger-tax style mechanism inspired by Radical Markets. New owners can claim any rNFT by paying the standing price, with bonding-curve dynamics producing continuous price discovery and rewarding creators on every transfer.
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Developer resources from Alchemy

EIP-7702: quick integration guide for Ethereum developers post-pectra
Ethereum is on the brink of an important upgrade with EIP-7702. Here's a quick guide on integration considerations for all developers.

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.
How Collector Crypt put nearly $40M of trading cards onchain with Alchemy
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.
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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.

