Neynar

Neynar is a San Francisco-based developer infrastructure company providing APIs, hosted hubs, webhooks, indexing, and app-building tools for the Farcaster decentralized social protocol. The platform gives developers everything needed to build social apps, mini apps, AI agents, and onchain commerce experiences on Farcaster — accessing a network of 2.6M+ accounts and $500M+ in connected wallets. Neynar also offers an App Studio for visual no-code app building. In January 2026, Neynar announced it is acquiring Farcaster from Merkle, taking over stewardship of the protocol, the Farcaster client app, and Clanker. Backed by Haun Ventures, Union Square Ventures, a16z CSX, and Coinbase Ventures.