Integration

Neynar integration

Neynar is the leading Farcaster API platform providing comprehensive access to the Farcaster social protocol. Build social applications with user management, cast publishing, reactions, channels, notifications, and feed curation. Integrate Farcaster's decentralized social graph into your applications with real-time data, webhooks, and powerful search capabilities. Perfect for social dApps, reputation systems, and Web3 social features.

Connect Neynar How integrations work

Ask it in chat

Say what should happen.
The workflow builds itself.

When this happens, do that in Neynar.Built from the 13 Neynar tools below, on the connection you add once.

Common Neynar use cases

user discovery
content discovery
social context display
liking posts
channel pages
following users
unfollowing users
notification feeds
building home feeds
deleting user posts

What you can do with Neynar

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Cast, 4 operations

delete_castDelete castDELETEDeletes a cast from Farcaster. The authenticated user must be the cast's author.
get_castGet castGETRetrieves a single Farcaster cast by hash or URL. Returns full cast details including author, content, reactions, and replies.
publish_castPublish castPOSTPublishes a new cast to Farcaster. Post text, images, links, reply to threads, or post to channels.
search_castsSearch castsGETSearches Farcaster casts by keyword with advanced query syntax and multiple sort/filter options.

User, 3 operations

get_user_by_fidGet user by fidGETRetrieves Farcaster user profiles by FID. Returns profile details, follower counts, and social context when viewer_fid is provided.
get_user_by_usernameGet user by usernameGETRetrieves a Farcaster user profile by username. Returns full profile including bio, follower counts, and verified addresses.
search_usersSearch usersGETSearches Farcaster users by username or display name. Returns matching profiles with relevance ranking.

Follow, 2 operations

follow_userFollow userPOSTFollows one or more users on Farcaster. Adds them to the authenticated user's following list.
unfollow_userUnfollow userDELETEUnfollows one or more Farcaster users. Removes them from the authenticated user's following list.

Channel, 1 operation

get_channelGet channelGETRetrieves details about a Farcaster channel including description, follower count, and moderators.

Feed, 1 operation

get_feedGet feedGETRetrieves a curated feed of casts. Get home feed, channel feed, or filtered feed by users.

Notification, 1 operation

get_notificationsGet notificationsGETRetrieves notifications for a Farcaster user. Includes mentions, replies, reactions, and new followers.

Reaction, 1 operation

react_to_castReact to castPOSTAdds a like or recast reaction to a Farcaster cast. Reactions are visible on the cast and in user activity.

Use Neynar from Claude Code, Cursor or Codex

Connect Neynar in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its Neynar operations become tools the client can call, next to every other integration you connected.

Claude Code

claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"

Codex (~/.codex/config.toml)

[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"

Cursor, Claude Desktop and other JSON configs

{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect Neynar

Create your workspace
Sign up free. Nothing to install.
Connect Neynar once
Add your Neynar connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.
Describe the job in chat
The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.

Neynar integration FAQ

What can you do with the Neynar integration?

LiveContext exposes 13 operations on Neynar, covering cast, user, follow and channel. Common uses include user discovery, content discovery and social context display.