Airstack, a developer of on-chain data APIs, announced on Platform X that it has closed a $4 million seed round led by Red Beard Ventures with participation from SuperLayer, Polymorphic Capital, Superscrypt, Hashed Emergent, Delta Blockchain Fund, CSP DAO, NGC Ventures, Primal Capital, Kyber Ventures, Resolute Ventures, and Allen Day, the builder of the Google Cloud Crypto Bulletin dataset, with undisclosed valuation information.Airstack builds the Web3 API Platform is designed to make it easy for individuals to discover and use data from the Web3 ecosystem through APIs.