VC follow intelligence for AI agents. Track what top investors follow on X — detect new follows, convergence signals, and trending companies before they're announced.

Setup (2 minutes)

1. Get your API key

2. Add to your AI tool

Pick your tool and paste the config. Replace sig_your_key_here with your actual key.

Claude Code

Run this in your terminal:

claude mcp add frontrun -- npx frontrun-mcp-server

Then set your API key:

claude mcp add frontrun -e FRONTRUN_API_KEY=sig_your_key_here -- npx frontrun-mcp-server

Or add to .mcp.json in any project:

{
  "mcpServers": {
    "frontrun": {
      "command": "npx",
      "args": ["frontrun-mcp-server"],
      "env": {
        "FRONTRUN_API_KEY": "sig_your_key_here"
      }
    }
  }
}

Claude Desktop

Add to your config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "frontrun": {
      "command": "npx",
      "args": ["frontrun-mcp-server"],
      "env": {
        "FRONTRUN_API_KEY": "sig_your_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json in your project:

{
  "mcpServers": {
    "frontrun": {
      "command": "npx",
      "args": ["frontrun-mcp-server"],
      "env": {
        "FRONTRUN_API_KEY": "sig_your_key_here"
      }
    }
  }
}

Any MCP-compatible client

FRONTRUN_API_KEY=sig_your_key_here npx frontrun-mcp-server

3. Start asking questions

That's it. Open your AI tool and try:

"What's trending in my tracked accounts this week?"

What can I ask?

Here are real prompts that work out of the box. Just type them into Claude Code, Claude Desktop, or Cursor.

Daily deal flow

"What are the trending companies this week?"
"Show me what my tracked VCs followed in the last 48 hours"
"Any convergence signals? Who are multiple VCs following independently?"

Deep research

"Tell me everything about @hitdotone — who founded it, what they're building, and who's backing them"
"Who are the founders of @someproject and what's their background?"
"What funding has @tempofinance raised?"

Discovery

"Find me early-stage DeFi companies that my tracked VCs are following but I'm not tracking yet"
"What sectors are getting the most attention from VCs right now?"
"Search for stablecoin startups in the follow graph"

Portfolio monitoring

"Track @a16zcrypto and @paradigm"
"Show me a16zcrypto's recent follow activity and what sectors they're focused on"
"Find VCs with similar follow patterns to @multicoin"

Custom intelligence

"Create a rule to flag any stablecoin neobank companies"
"Tag @hitdotone as a portfolio candidate"
"Show me all entities matching my stablecoin rule from the last 7 days"

How it works

Frontrun monitors the X (Twitter) follow graphs of VCs and investors you choose to track. When a VC follows a new account, Frontrun detects it, classifies the entity (startup, protocol, founder, etc.), and makes it queryable through AI.

The signal: VCs typically follow companies 2-8 weeks before a funding announcement. Convergence — multiple VCs independently following the same account — is the strongest signal.

What you're paying for: Every response is computed intelligence, not raw data. Sectors are classified by AI, convergence is detected algorithmically, and company profiles are synthesized from multiple sources.

Pricing

Your API key has a credit balance. Each query costs a small amount:

What you're doing	Cost
Check your balance, list tracked accounts, manage rules/tags	Free
Preview an account, search, view sectors, get company links	$0.05
New follows, enriched follows, trending, VC activity, feed	$0.10
Company overview, funding info, similar VCs, discover	$0.15
Convergence detection, founder intelligence	$0.25

A typical daily check-in (feed + convergence + a few company lookups) costs ~$0.75.

All available tools

The agent has access to these tools automatically. You don't need to call them by name — just ask your question and the agent picks the right tool.

Tracking

Tool	What it does
`frontrun_status`	Your balance, tracked count, usage stats
`frontrun_list_tracked`	All accounts you're monitoring
`frontrun_track`	Start monitoring an X account
`frontrun_untrack`	Stop monitoring an account
`frontrun_preview`	Preview an account before tracking — signal score, sector hints, recommendation

Signals

Tool	What it does
`frontrun_new_follows`	New follows detected across your tracked accounts
`frontrun_snapshot`	Current follow list for a specific tracked account
`frontrun_enriched_follows`	New follows + AI classification + custom rules applied
`frontrun_convergence`	Multiple tracked accounts following the same entity
`frontrun_trending`	Entities ranked by follow velocity
`frontrun_search`	Search discovered entities by sector, keyword, type
`frontrun_feed`	Real-time activity feed across all tracked accounts
`frontrun_sectors`	Sector breakdown of discovered entities
`frontrun_discover`	Personalized recommendations — "accounts your VCs follow that you're not tracking"

Company intelligence

Tool	What it does
`frontrun_company`	Company overview — what they do, sector, stage
`frontrun_company_founders`	Founder profiles, backgrounds, previous companies
`frontrun_company_signals`	Social buzz, sentiment, notable engagements
`frontrun_company_resources`	Website, GitHub, docs, community links
`frontrun_company_funding`	Funding rounds, investors, amounts

VC intelligence

Tool	What it does
`frontrun_vc_activity`	VC follow patterns — velocity, sector focus, recent follows
`frontrun_vc_similar`	Find VCs with overlapping follow patterns

Classification

Tool	What it does
`frontrun_classify`	Run AI classification on specific entities
`frontrun_create_rule`	Create a custom classification rule
`frontrun_list_rules`	List your rules
`frontrun_update_rule`	Update a rule
`frontrun_delete_rule`	Delete a rule
`frontrun_tag`	Tag an entity with custom labels
`frontrun_list_tags`	List your tagged entities

REST API

Prefer HTTP? Every tool maps to a REST endpoint. Base URL: https://frontrun.vc/v1

# Set your key
export FR_KEY="sig_your_key_here"

# Check your account
curl -sL -H "X-API-Key: $FR_KEY" "https://frontrun.vc/v1/status"

# What's trending?
curl -sL -H "X-API-Key: $FR_KEY" "https://frontrun.vc/v1/trending?since=168h"

# Convergence signals
curl -sL -H "X-API-Key: $FR_KEY" "https://frontrun.vc/v1/convergence?since=168h"