X Agent

X-Agent

AI agent for X/Twitter with full read + write capabilities.

Reads are free (twitter-cli via cookie auth), writes use the official API (xmcp MCP server).

Architecture

┌─────────────────────────────────────────────────┐
│                  Cursor Agent                    │
│              (rules in .cursor/)                 │
├────────────────────┬────────────────────────────-┤
│                    │                              │
│  READ / SEARCH     │  WRITE (tweet, RT, DM, etc) │
│  ▼                 │  ▼                           │
│  twitter-cli       │  xmcp MCP server             │
│  (cookie auth)     │  (OAuth1, official X API)    │
│  FREE              │  API tier costs apply        │
└────────────────────┴──────────────────────────────┘

What You Can Do

Free (twitter-cli)

• Search tweets
• Read tweets + replies
• Browse home timeline
• View user profiles and posts
• Read X Articles
• View bookmarks and likes

Official API (xmcp)

• Post tweets
• Retweet / unretweet
• Like / unlike
• Send DMs, read DM history
• Follow / unfollow / mute / unmute
• Delete tweets, hide replies
• Manage bookmarks
• Search users, get trends
• Anything else in the X API

Setup

1. twitter-cli (reads — already done)

pipx install twitter-cli
twitter status  # should show authenticated

2. xmcp (writes)

Get X Developer App credentials from https://developer.x.com/en/portal/dashboard:

• Create a new app (or use existing)
• Enable OAuth 1.0a with read+write+DM permissions
• Set callback URL to http://127.0.0.1:8976/oauth/callback
• Copy Consumer Key, Consumer Secret, and Bearer Token

Fill in xmcp/.env:

X_OAUTH_CONSUMER_KEY=your_consumer_key
X_OAUTH_CONSUMER_SECRET=your_consumer_secret
X_BEARER_TOKEN=your_bearer_token

Start the server:

./start-xmcp.sh

On first run, a browser window opens for OAuth1 consent. Approve it. The MCP server runs at http://127.0.0.1:8000/mcp.

3. Use it

Open this project in Cursor. The .cursor/rules/x-agent.mdc rule tells the agent how to route:

• Reads → twitter CLI commands
• Writes → x-api MCP server tools

Just ask naturally: "search for tweets about AI agents", "post a tweet saying hello", "DM @someone", etc.

File Structure

X-Agent/
├── .cursor/
│   ├── mcp.json          # MCP server config (xmcp endpoint)
│   └── rules/
│       └── x-agent.mdc   # Agent routing rules
├── xmcp/                  # Official X API MCP server (cloned)
│   ├── server.py
│   ├── .env               # Your API credentials (git-ignored)
│   └── .venv/             # Python virtualenv
├── start-xmcp.sh          # One-command server startup
├── .gitignore
└── README.md

Tool Allowlist

The .env pre-configures a curated allowlist of ~35 tools. To add more, see the full list of 100+ tools in xmcp/README.md and append to X_API_TOOL_ALLOWLIST in xmcp/.env.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: Kevin-Liu-01
• Source: Kevin-Liu-01/X-Agent
• License: MIT

Install and usage instructions live in the source repository linked above.