FOAM is a decentralized geospatial protocol that uses cryptographic methods on Ethereum to enable physical location verification and privacy-preserving location services. FOAM's Twitter Score is 110 out of 1000 (an Excellent rating) as of September 2026, ranking #6,217 (top 5%) among 486,573 tracked accounts.
FOAM is an open protocol for decentralized geospatial data markets, combining consensus-driven maps, blockchain staking, and radio-based Zone Anchors to build a crowdsourced location network. The protocol operates on the Optimism OP Stack and is designed around a Trust Zone concept for physical location verification. FOAM was co-founded by Ryan John King as Co-founder and CEO, Kristoffer Josefsson as Co-founder and CTO, and Katya Zavyalova as Co-founder and Creative Director.
FOAM has deployed its first operational Zone at Brooklyn Navy Yard, marking a concrete step toward a live radio-based location network. The protocol has received backing from Placeholder, Outlier Ventures, KR1, Nirvana Capital, 2020 Ventures, and Starchain Capital. FOAM has published 4,429 posts and has been mentioned by 248 accounts a total of 624 times, reflecting ongoing attention within the decentralized infrastructure space.
Who follows FOAM on X?
The accounts that follow FOAM include 449 founders, 136 angel investors, 108 influencers and 12 VCs, among them Balaji, Erik Voorhees, Stani, Hayden Adams, Chris Burniske and Fred Ehrsam.