Neynar gives you the APIs, SDKs, and infrastructure to build decentralized social apps — without running your own nodes.
// Fetch a user's Farcaster profile in one call
const response = await fetch(
'https://api.neynar.com/v2/farcaster/user?fid=3',
{ headers: { 'x-api-key': YOUR_API_KEY } }
);
const { user } = await response.json();
console.log(user.display_name); // "Dan Romero"One platform. Every tool. Zero node management.
Read and write casts, profiles, channels, reactions, and more with simple HTTP calls.
Managed Farcaster hub nodes so you never have to provision or sync infrastructure.
Real-time event notifications for casts, follows, reactions, and channel activity.
Handle cryptographic signers for write operations without managing keys yourself.
Programmatically onboard users to Farcaster with a single API call.
Build interactive mini apps that run natively inside Farcaster clients.
From weekend hackers to venture-backed startups, Neynar powers the apps that define the Farcaster ecosystem.
$ npm install @neynar/nodejs-sdk
added 42 packages in 2.1s
$ node app.js
✓ Connected to Neynar API
✓ Fetched 1,247 casts
✓ Webhook registered
Server running on port 3000
Start free. Scale as you grow.
For hobbyists and experiments
For apps gaining traction
For teams at scale
Join 1,000+ developers building on Farcaster with Neynar.
Start Building Free