Track what VCs follow on X in real time.
Frontrun MCP Server
Give AI agents native access to the Frontrun API. Track what VCs follow on X in real time — detect new follows, convergence signals, and trending companies across your monitored set.
Works with any MCP-compatible client: Claude Code, Claude Desktop, Cursor, Windsurf, and more.
Setup
Step 1: Get your API key
Sign up at frontrun.vc → Settings → API Keys.
Step 2: Connect
Claude Code (one command):
claude mcp add frontrun -e FRONTRUN_API_KEY=your_api_key --scope user -- npx frontrun-mcp-server
Done. Start Claude Code and ask: "What's trending in VC follows this week?"
Claude Desktop — add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"frontrun": {
"command": "npx",
"args": ["frontrun-mcp-server"],
"env": {
"FRONTRUN_API_KEY": "your_api_key"
}
}
}
}
Cursor — add to .cursor/mcp.json:
{
"mcpServers": {
"frontrun": {
"command": "npx",
"args": ["frontrun-mcp-server"],
"env": {
"FRONTRUN_API_KEY": "your_api_key"
}
}
}
}
Available tools
| Tool | Description |
|---|---|
frontrun_status |
Account status, balance, usage stats |
frontrun_list_tracked |
List all monitored accounts |
frontrun_track |
Start monitoring an X account |
frontrun_untrack |
Stop monitoring an X account |
frontrun_new_follows |
Detect new follows across tracked accounts |
frontrun_snapshot |
Get current follow list for an account |
frontrun_convergence |
Detect multi-account convergence signals |
frontrun_trending |
Get trending entities by follower count |
frontrun_account_activity |
Activity profile for a tracked account |
frontrun_search |
Search entities by sector, keyword, or type |
frontrun_enriched_follows |
New follows with full enrichment |
frontrun_classify |
Run classification on specific entities |
frontrun_create_rule |
Create custom classification rules |
frontrun_list_rules |
List classification rules |
frontrun_update_rule |
Update a classification rule |
frontrun_delete_rule |
Delete a classification rule |
frontrun_tag |
Add custom tags/notes to entities |
frontrun_list_tags |
List your custom-tagged entities |
Example prompts
- "What are the trending companies this week?"
- "Show me convergence signals with threshold 3 in the last 14 days"
- "What new accounts did pmarca follow in the last 48 hours?"
- "Search for AI/ML startups in the follow graph"
- "Track @sequoia"
Troubleshooting
"FRONTRUN_API_KEY environment variable is required" — Your API key isn't set. Check your config.
"Invalid API key" — Key is wrong or inactive. Generate a new one at frontrun.vc → Settings → API Keys.
npx not found — Install Node.js 18+ from nodejs.org.
Documentation
Full API docs at frontrun.vc/docs
Source
github.com/jongall45/frontrun-mcp-server
License
MIT
Tools (18)
frontrun_statusGet account status, balance, and usage statistics.frontrun_list_trackedList all monitored accounts.frontrun_trackStart monitoring an X account.frontrun_untrackStop monitoring an X account.frontrun_new_followsDetect new follows across tracked accounts.frontrun_snapshotGet current follow list for an account.frontrun_convergenceDetect multi-account convergence signals.frontrun_trendingGet trending entities by follower count.frontrun_account_activityGet activity profile for a tracked account.frontrun_searchSearch entities by sector, keyword, or type.frontrun_enriched_followsGet new follows with full enrichment.frontrun_classifyRun classification on specific entities.frontrun_create_ruleCreate custom classification rules.frontrun_list_rulesList classification rules.frontrun_update_ruleUpdate a classification rule.frontrun_delete_ruleDelete a classification rule.frontrun_tagAdd custom tags or notes to entities.frontrun_list_tagsList your custom-tagged entities.Environment Variables
FRONTRUN_API_KEYrequiredAPI key obtained from frontrun.vc settings.Configuration
{"mcpServers": {"frontrun": {"command": "npx", "args": ["frontrun-mcp-server"], "env": {"FRONTRUN_API_KEY": "your_api_key"}}}}