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How it works

Paste your URL. Meet your first users in 30 seconds.

Arena is the lead finder for founders with zero customers. Five named scouts read your site, understand what you shipped, and return real people on five platforms already describing your product. Fit-scored, ranked, draft reply included. You send.

Try it with your URLno signup · results in 30s

The flow

Paste. Meet. Send.

01

Paste your URL

One input on the homepage. No signup, no product description, no keywords. Arena reads your site, infers what you shipped, and dispatches five scouts in parallel.

02

Meet 3 people asking for your product

Each scout returns the single post or thread where a real person is asking for exactly what you solve. Fit-scored 0 to 100, ranked highest first, with the exact quote and a link back to the source.

03

Let Arena draft. You send.

Sign up and Arena saves the three. The five scouts keep scanning 24/7. Every morning, fresh fit-scored leads land in your inbox with draft replies. You send from your own account.

Your growth team, by name

Five scouts. One job. Find your first users.

Stop being afraid of your competitors. Start watching them. Each scout lives where founders get blunt, and hands you a draft reply you can send from your own account.

Reddit Scout

r/startups, r/SaaS, and every sub where your buyer posts.

X Scout

Real-time workflow complaints and churn tweets.

HN Scout

Show HN launches and Ask HN threads asking for what you built.

LinkedIn Scout

Operators posting openly about the pain you solve.

Product Hunt Scout

Unhappy comments on competitor launches. Switch-ready leads.

And once you are in

The engine keeps working while you build.

Competitor radar

Arena discovers competitors across the same five platforms and watches their sites for pricing changes, feature launches, and pivots. Severity-classified. Counter-move spec generated on demand.

Signal stream

Connect Slack, Linear, PostHog, Notion, and Jira. Every signal auto-classified into pain points, feature requests, bug reports, praise, or analytics insight.

Hijack

Pick a competitor. Arena finds their frustrated users and hands you a draft reply that references their exact complaint. You send from your own account.

Daily digest

Every morning, fresh fit-scored leads land in your inbox with draft replies. Nothing to configure, nothing to read through. Open, scan, send, close the tab.

Glossary

What we mean when we say Arena.

Six terms you will see across the product, defined once so you never have to guess.

Arenalead-finder product
Arena is the lead finder for founders with zero customers. Paste your URL and Arena finds real humans already describing your product on Reddit, X, HN, LinkedIn, and Product Hunt, then drafts replies you can send from your own account.
Scoutplatform-specific AI agent
A scout is an AI agent that lives on one platform and searches it for people already describing your product. Arena runs five scouts in parallel: Reddit Scout, X Scout, HN Scout, LinkedIn Scout, and Product Hunt Scout.
Fit Scorelead quality metric
Fit Score is a 0-to-100 rating Arena assigns each lead based on how closely the person’s need matches your specific product (not your general industry). Higher scores mean the lead is asking for exactly what you shipped.
Early Adopter FinderArena’s primary feature
The Early Adopter Finder is Arena’s core feature: five named scouts search Reddit, X, HN, LinkedIn, and Product Hunt in parallel, returning fit-scored leads with the exact quote, a link back to the source, and a draft reply.
Competitor Radarcompetitor-tracking feature
Competitor Radar discovers competitors across the same five platforms and watches their sites 24/7 for pricing changes, feature launches, team hires, and pivots. Every change is classified by severity (critical, important, minor) and delivered to a real-time intel feed.
Hijackcompetitor-customer conversion feature
Hijack surfaces a competitor’s frustrated users as leads. Arena searches five platforms for people complaining about that competitor, scores each lead 0 to 100 on switch readiness, and ships a draft reply that references the exact complaint.

The specs

Arena, in numbers.

5named scouts
One per platform (Reddit, X, HN, LinkedIn, Product Hunt), running in parallel.
5platforms covered
Reddit, X (Twitter), Hacker News, LinkedIn, Product Hunt.
30spreview time
From paste to three fit-scored leads in your browser.
40+leads per run
Preview returns 3 free; sign-up unlocks the remaining 40 or so.
0–100fit score range
Higher score = the lead is asking for exactly what you shipped.
24/7scanning cadence
Scouts keep running; fresh leads land in your inbox every morning.
$8lite plan / month
Includes $20 of AI credit, 1 company, and 5 competitor slots. The cheap entry tier.
$20starter plan / month
Includes $20 of AI credit, 3 companies, and 10 competitor slots. Free 3-day trial before either.

Got questions?

Frequently asked.

Do I need to sign up to try it?
No. Paste your URL, get 3 real leads in under 30 seconds, no account, no credit card. Sign up only when you want the other 40.
I have zero customers. Does Arena still work?
Arena is built for exactly this moment. It reads your URL, understands what you ship, and finds real humans already describing that problem in public. No customer list required.
How is Arena different from a spreadsheet and cold email?
The status quo is searching subreddits by hand and blasting generic messages. Arena reads your URL, scores each lead for fit, surfaces people describing your specific product in their own words, and drafts the reply. High-signal, not high-volume.
What platforms does Arena search?
Reddit, X, Hacker News, LinkedIn, and Product Hunt. One named scout per platform, all five running in parallel.
How does fit scoring work?
Every lead gets a score from 0 to 100 based on how closely their post matches your product. A lead complaining about the exact workflow you solve scores high. A lead mentioning your general industry scores low. You see only the top matches.
What happens after I claim my first 3 leads?
Five scouts keep scanning 24/7. Every morning, fresh fit-scored leads with draft replies land in your inbox. You send from your own account.
Can I use Arena from my code editor?
Yes. Arena ships as an MCP server, so your coding agent (Claude Code, Cursor, Codex) can call Arena directly from your terminal. Ask the agent to find leads or draft DMs and it pulls from Arena without you leaving the editor. Generate a key at app.tryarena.app/mcp.
How much does Arena cost?
Lite $8/mo with $20 AI credit (1 company, 5 radar). Starter $20/mo with $20 AI credit (3 companies, 10 radar). AI usage billed at cost, zero markup. Free 3-day trial, no card required upfront.
What AI models does Arena use?
Anthropic (Claude Opus, Sonnet, Haiku) and OpenAI (GPT-5 family). Expensive models for the accuracy-critical steps like fit scoring. Fast cheap models for routing. You pay provider cost, no markup.
Is my data secure?
All data stored in Supabase with encryption at rest. LLM calls routed through Arena's backend. OAuth tokens stored encrypted. Email hello@tryarena.app for security questions.
Can I talk to the founder?
Yes. Book a 15-minute call directly. Saam personally onboards every early user during the first 100.
Arena MCProlling out

Find users without leaving your editor.

Add Arena as an MCP server in Claude Code, Cursor, or Codex. Ask the agent already in your editor to find ranked leads + draft replies. Discovery streams in the background. Send stays in the dashboard so a human always sees the message before it goes out.

Final testing. Generate your key in the dashboard today, drop the config snippet into your editor, and you're connected the moment the server flips on. We'll email you.

11 tools

Find, draft, mark — one call each.

find_users (leads + drafts in one call), mark_lead, list_products, start/check discovery, get_leads, draft_message, list_runs, get_run_leads, get/update_product_context.

Safety

Built for agent traffic.

30 calls/min per key, last-used IP audit, revoke any time, no auto-send.

Smart context

The agent already knows your product.

Claude pushes what it knows about your repo + vision into Arena, so leads land higher-fit. No retyping.

01

Generate a key

In the Arena dashboard at /mcp. One click, shown once.

02

Paste the config

Drop the JSON snippet into your editor's MCP config file.

03

Restart your editor

Then ask Arena for leads, drafts, or context updates.

Open the dashboard →

Talk to your customers. Starting now.

Paste your URL. Meet three real people already describing your product. No signup, no card, 30 seconds.

Show me my leadsTalk to the founder