Built for cold outbound teams.

Enrich outbound lists faster,
in Google Sheets.

Waterfall email finding, website scraping, and AI research — all in Sheets.
Bring your own API keys. Pay provider cost. No Clay-style credit burn.

20+
Integrations
Zero
Credits
Free
Beta Access
Start Free

No credit card  ·  2-minute install  ·  free during beta

Up and Running in 5 Minutes

No new platform to learn. No onboarding calls. Your first outbound list enriched today.

1

Install from Google Workspace Marketplace

One-click install. Opens as a sidebar inside any Google Sheet your team already uses — nothing new to learn.

2

Connect your existing API keys once

Hunter, Apollo, OpenAI — whatever you already pay for. Add them once and use them across every campaign forever. You pay those providers directly at their real price.

3

Build your workflow once. Run it everywhere.

Set up your enrichment sequence with conditional logic. Run it on any list, any campaign, any time. No rebuilding, no credit burn, no surprises.

See it in action

Build a full outbound enrichment workflow in under 5 minutes — without leaving Google Sheets

Why Cold Outbound Teams Switch to LeadBooster

Your outbound stack, without the credit burn.

① Your APIs. Their Price.

Connect Hunter, Apollo, OpenAI — the tools you already pay for. You pay those providers directly at their actual published rates. No markup, no credit conversion. Run every campaign at real cost.

② Flat Fee. No Credit Anxiety.

Free during beta — $15/mo at launch. Enrich 100 leads or 100,000 — the platform cost never changes. Know exactly what every outbound campaign costs before you run it.

③ Works in Sheets. Your Team Knows It.

No new platform to learn. No onboarding call. No GTM engineer. LeadBooster runs as a sidebar in the Sheets your outbound team already uses. Build once, hand off instantly.

$15/mo at launch + Your API keys at provider cost

Complete outbound enrichment stack. Predictable cost per campaign. Your data stays yours.

Already paying for Hunter, Apollo, OpenAI? Connect them directly — we never mark up their prices.

Already paying for these? Connect them to your outbound workflow at their actual price — zero markup

+ 20 more integrations — your keys, their price, nothing added

Everything You Need to Enrich Outbound Lists Faster.

Workflow builder, waterfall enrichment, free scraping, AI personalization — all from inside Google Sheets.

FREE

Workflow Builder with Conditional Logic

Build your outbound enrichment sequence once — reuse it on every client list, every campaign. Conditional logic skips rows that already have data, so you never pay to enrich the same lead twice.

  • Conditional logic per task (if email exists, skip)
  • Free tools run first, paid APIs only when needed
  • Reusable templates per campaign type
  • Cut API costs 40–60% by skipping unnecessary enrichments
FREE — No API key needed

Free Web Scraping

Scrape company websites for every outbound campaign at zero extra cost. Extract emails, phones, and company data — no credits, no per-page charges, no API key required.

  • Multi-page crawling with sitemap discovery
  • Email and phone extraction from company websites
  • Tech stack detection for lead qualification
  • Apify integration for protected sites (your keys)

Bring Your Own API Keys

You already pay for Hunter, Apollo, OpenAI. Connect them directly and pay at their actual prices — no markup, no credit conversion, no surprises.

  • 20+ pre-built integrations (Hunter, Apollo, Prospeo, Datagma)
  • Connect any HTTP API — not limited to our marketplace
  • Your keys stay in your Google account — we never see them
  • Full cost transparency: $15/mo platform + provider cost = total
Your Keys — ~$15/mo

AI Research Agent

Google search + web scraping + AI synthesis. Research target accounts, find contacts, generate personalized first lines for cold email — all from inside Sheets.

Your cost: ~$15/mo
OpenAI
~$10/mo
+
Serper
~$5/mo
Your Keys

Waterfall Enrichment

The core of any serious outbound stack. Try multiple email finders in sequence — Hunter → Prospeo → Datagma — stop at first hit. Maximize find rates per campaign while minimizing API spend.

  • Chain multiple email finders with automatic fallback
  • Stop at first successful result to save API costs
  • Custom priority order per campaign
  • Perfect for hard-to-find contacts
Your Keys

Push to Outbound Tools

Enrich in Sheets, push straight to your sending platform. Create and update leads in Instantly.ai, Smartlead, or HubSpot — no copy-paste, no CSV exports.

  • Instantly.ai — create leads, update existing, add to campaigns
  • Smartlead — full CRUD (add, lookup, update, remove leads)
  • HubSpot — push enriched data to your CRM
  • Keep your outbound tools in sync automatically
FREE

Zapier / n8n / Make Webhooks

Connect LeadBooster to any automation platform via webhooks. Trigger workflows when enrichment completes, or push data wherever you need it.

  • Send enriched data to Zapier, n8n, or Make
  • Trigger multi-step workflows on enrichment completion
  • No code required — just webhook URL
Your Keys

AI Personalization at Scale

Generate personalized first lines and icebreakers for every lead on your list. Works with GPT-4, Claude, or DeepSeek — whichever you already pay for. No extra credits.

Your Keys

20+ Pre-Built Integrations

Hunter, Apollo, Prospeo, Datagma, and more. Add your API keys once, use them across every campaign at provider cost — nothing added by us.

  • Email finders (Hunter, Prospeo, Datagma, Findymail, LeadMagic)
  • Phone finders (LeadMagic, Prospeo, Datagma, Findymail)
  • Email verifiers (ZeroBounce, MillionVerifier, Hunter)
  • Company enrichment (Datagma, Prospeo, Apollo)
  • Person enrichment (Datagma, Prospeo, Hunter)
  • Employee finder (Datagma)
Your Keys

Apify Integration

Run 1,500+ Apify actors directly from Sheets for protected sites. Execute actors, import existing runs, or bulk import results into new rows.

FREE

Sitemap Crawler

Extract all URLs from any company sitemap. Perfect for building targeted prospect lists and competitive research.

FREE

Data Processing Toolkit

Clean, normalize, and transform your data without leaving Sheets. 10+ built-in tools for common lead list operations.

  • Text Normalizer — clean names, companies, domains
  • Phone Formatter — standardize phone number formats
  • URL Extractor — pull links from text
  • Data Splitter — split cells by delimiter
  • Domain Normalizer — clean and standardize domains
  • Email Provider Extractor — detect Gmail, Outlook, etc.
  • Date Formatter — normalize date formats
  • JSON Parser — extract data from JSON responses
FREE

Advanced Scraping Tools

Beyond basic web scraping — extract social URLs, lookup domain age, and fetch company news automatically.

  • Social URL Finder — find LinkedIn, Twitter, Facebook links
  • Domain Age Lookup — check how long domains have been active
  • Google News RSS — latest news about target companies
  • MX Record Lookup — verify email infrastructure
FREE

Smart Data Enrichment

AI-powered tools to categorize and qualify leads automatically. No manual tagging required.

  • Job Title to Persona Mapper — map titles to buyer personas
  • Keyword Categorizer — auto-tag leads by keywords
  • Find Common Tags — discover patterns in your data
  • Smart Company Name Normalizer — clean company names
FREE

Native Google Sheets

No new platform to learn. Works as a sidebar in any Sheet. Runs in the background. Your data stays in your Google account — never ours.

Trusted by Cold Outbound Teams

Saved $284/mo

"Same enrichment quality, $284 less per month. And my team actually knows how to use it without a training session."

Nebojsha T.
Nebojsha T. Founder, SkyNebo
Zero credit anxiety

"I know exactly what I'm paying every month — no surprises, no panic mid-campaign. I can plan my costs before I run a list."

Filip K.
Filip K. Founder, Revenuvable.com
100% cost visibility

"Finally I can forecast my costs. $15 LeadBooster, $30 OpenAI, $49 Hunter. That's it. I know exactly what every campaign costs before I run it."

Stuart
Stuart Founder, saasyDB

Beta Access. Free Right Now.

Built for cold email teams and outbound agencies. Use it free in beta — lock in your lifetime price before launch.

Beta — Early Access
Right now
FREE
No card. No catch.
🔒
At launch
$15/mo
$29/mo for everyone else

Built for cold email teams, outbound agencies, and operators running high-volume campaigns. Install free during beta — when we launch, beta users lock in $15/mo forever. Everyone else pays $29/month.

  • Unlimited rows — zero credits, ever
  • All 20+ integrations (Hunter, Apollo, Prospeo…)
  • AI research agent — search, scrape, summarize
  • Free web scraping — emails, phones, tech stack
  • Workflow builder with conditional logic
  • Priority early-adopter support
Join Beta — Free Now

No credit card  ·  Lock in $15/mo forever  ·  Limited beta spots

How We Compare

For cold outbound teams evaluating their enrichment stack.

Clay
n8n / Make
LeadBooster
What it is Data vendor + workflow tool General automation platform Lead enrichment connector
API access Pay per credit — every row costs Bring your own — but write the code Bring your own — no code needed
Complexity Hard — needs a GTM engineer Very hard — code required Easy — it's a spreadsheet
Scope Everything GTM Everything, anything Lead enrichment only
Price $149–800/mo + credits $0–50/mo + developer time $15/mo flat
Google Sheets native No No Yes

Your Outbound Stack.
Without the Credit Burn.

Enrich your lists in Google Sheets using the APIs you already pay for. No Clay-style credits, no code, no new platform to learn.

Join Beta — Free Now Book a Demo

✓ No credit card  ✓ 2-minute install  ✓ Free during beta  ✓ Lock in $15/mo forever

Frequently asked questions

Who is LeadBooster for?

Cold email agencies, outbound SDRs, and founders running their own outbound. If you use Instantly, Smartlead, or HeyReach and you're tired of rebuilding enrichment for every campaign — or paying Clay-style credits on every row — LeadBooster is built for you.

Are there really no credits?

None. Ever. Some tools charge per row on top of their monthly fee — the more campaigns you run, the more you pay. LeadBooster is free during beta and $15/mo at launch, no matter how many lists or rows you enrich.

What does "Bring Your Own API Keys" mean?

You connect your existing Hunter, Apollo, and OpenAI accounts directly to LeadBooster. You pay those providers at their actual published rates when your campaigns run. We never mark up their prices, never see your keys, and never bundle costs into credits.

What's included in the $15/mo?

Everything your outbound workflow needs: unlimited rows, free web scraping, AI research agent, waterfall enrichment, workflow builder with conditional logic, and 20+ integrations. The only extras are the API providers you choose — and you pay them directly at cost.

How is this different from Clay?

Clay bundles data and charges credits per row — you pay their markup on top of a $149–349/mo platform fee. LeadBooster connects your existing API accounts and charges a flat $15/mo. Same enrichment sources, same outbound results, no middleman pricing, no credit anxiety before every campaign.

How is this different from n8n or Make?

n8n and Make are general automation platforms — great for developers, but lead enrichment requires code and complex multi-node workflows. LeadBooster is built only for outbound enrichment, so setup takes minutes. No code, no 47-node workflows, no engineer needed. Your SDR or VA can run it.

What can I scrape for free?

Regular company websites — email extraction, phone numbers, tech stack detection, sitemap crawling. All useful for qualifying and personalizing outbound. For Cloudflare-protected or JavaScript-heavy sites, connect your own Apify key. Free scraping covers the large majority of B2B campaign use cases.

Start Free