pex
Observe · Hypothesize · Test · Learn

The scientific method,
at the speed of AI.

Your AI assistant can run a thousand experiments — but forgets everything between sessions. Apex captures what your team learns, structures it into testable beliefs, and compounds it into every future decision. Every cycle makes the next one smarter.

Free forever · No credit card required · Upgrade when you're ready

+43%
p < 0.05
Δ revenue
3 signals
apex — mcp
+$2.4M
Revenue Impact
8th
Corrections
91%
Confidence
6.2x
Compounding

How It Works

The scientific method, built into your growth stack.

Observe what happens. Form a hypothesis. Test it. Learn from the result. Repeat. Apex automates this cycle and compounds your team's intelligence over time.

Choose your depth — same system, three levels of detail

You describe what to test

Tell Apex what you want to try. It writes the experiment into your code, deploys it through your pipeline, and measures real business outcomes — not just clicks.

It learns from the result

Every experiment teaches the system. It remembers what worked, what didn’t, and updates everything it knows — automatically.

It tells you what to do next

Based on everything your team has ever learned, the system recommends the highest-impact action. Your 10th experiment is smarter than your 1st.

Each cycle makes the next one better. Knowledge compounds.

Three Interfaces

Three ways to build intelligence.

Connect your AI agent via MCP for persistent intelligence. Drop in a script tag for zero-code experiments. Or pipe data from your existing stack through native sensors.

MCP Server
Your AI agent connects to Apex's belief graph, prediction calibration, and experiment engine. Every session starts from everything your team has ever learned.

# .cursor/mcp.json

{

"mcpServers": {

"apex": {

"command": "npx",

"args": ["@apex-inc/mcp-server"]

}

}

}

Beliefs & predictions persist across sessions
AI suggests what to test next
Experiments ship as real code
Calibration tracks prediction accuracy
Script Tag
One line of HTML. Instant text experiments without touching your codebase. Perfect for marketers and non-technical teams.

<!-- Add before </head> -->

<script src="https://your-app.com/api/apex-js" defer></script>

Deterministic variant assignment
Automatic UTM capture & attribution
Form interception for conversions
Visual preview mode for QA
Text-based targeting — no selectors
Data Sensors
Native connectors to your analytics, CRM, ad platforms, and payment systems. OAuth in, data flows automatically.
OAuth connect — no engineering needed
Real-time data ingestion & sync
Unified event schema across sources
Cost data auto-mapped to campaigns
Google Analytics 4
GA4
Google Ads
Ads
LinkedIn Ads
LinkedIn
Meta
HubSpot
HubSpot
Stripe
Stripe
QuickBooks
Microsoft Clarity
Clarity
Salesforce
Mixpanel
Amplitude
PostHog
Segment
Apex SDK

Ecosystem

Sensors in. Decisions out.

Apex reads from the tools you already use and acts through built-in execution capabilities. Your stack stays. Apex makes it smarter.

Sensors

Data flows in from your stack

Google Analytics 4

Google Analytics 4

Analytics
Connect
Google Ads

Google Ads

Ad Platforms
Connect
LinkedIn Ads

LinkedIn Ads

Ad Platforms
Connect

Meta Ads

Ad Platforms
Connect
HubSpot

HubSpot

CRM
Connect
Stripe

Stripe

Payments
Connect

QuickBooks

Revenue
Connect
Microsoft Clarity

Microsoft Clarity

Behavior Analytics
Connect

Apex SDK

Event Collection
Connect

Salesforce

CRM
Connect

Mixpanel

Analytics
Connect

Amplitude

Analytics
Connect

PostHog

Analytics
Connect

Segment

CDP
Connect

Actuators

Decisions flow out as actions

Experiment Engine

Open

Task Generation

Open

Budget Allocation

Open

Approval Workflows

Open

Webhooks

Open

Slack Notifications

Open

Observe · Hypothesize · Test · Learn · Repeat

Built for Growth Teams

You know these problems.

Every growth team fights the same battles — disconnected signals, decisions based on intuition, and intelligence that evaporates between campaigns. Apex solves them regardless of your vertical.

Whether sales-led, product-led, or hybrid — close the loop from spend to revenue.

You can’t connect ad spend to closed revenue

$0
reconciliation needed

Your analytics shows clicks. Your CRM shows deals. Nobody connects them. CAC and payback period are educated guesses.

Apex maps every event to channel spend and pipeline value. CAC and payback are always current.

Your experiments optimize for vanity metrics

Revenue
not clicks

A $50K enterprise demo and a free trial sign-up are not the same. Your tests can’t tell the difference.

Experiments scored by real business value per dollar. Pipeline, not pageviews.

Your team learns something every week — and loses it by next quarter

10×
faster time-to-insight

Insights live in dashboards nobody re-reads, experiments nobody references, and tribal knowledge that leaves when people do.

Apex turns every signal into institutional memory. The loop compounds — so the 50th decision is dramatically better than the first.

Key sensors
Google AdsLinkedIn AdsHubSpotGA4
Cost per weighted pipeline dollar

Same platform. Different verticals. The scientific method works everywhere. Your sensors, metrics, and experiments adapt to your business — the intelligence loop stays the same.

Pricing

Start free. Upgrade when the loop pays for itself.

The intelligence layer is free forever. When you're ready to close the loop — experiments, budget allocation, AI-scored decisions — you pay for the value Apex generates, not the tools it touches.

Free

Forever
$0/mo

The full intelligence layer. Install the SDK, connect your data, see weighted scores and timeline intelligence. No credit card. No time limit. Every user makes the system smarter for everyone.

Core scoring engine
Timeline intelligence
Identity resolution
Executive dashboard
Open-source SDK + all connectors
Belief graph (read-only)
2 active experiments
MCP server access
5 lifecycle communications with standard branding
Up to 2 seats
50K events/mo

When you're ready to close the loop

MonthlyAnnual
Save 20% with annual billing

Starter

Close the loop. Unlimited experiments evaluated by weighted business value.

$320/mo billed annually

Up to 3 seats · 200K events/mo · Unlimited projects

Everything in Free, plus

  • Unlimited experiments + manual evaluation
  • 15 lifecycle communications tailored to your vertical
  • 2 communication experiments per month with basic A/B testing
  • 3 concurrent A/B tests with manual winner promotion
  • Mobile install attribution
  • Cross-platform identity (web + mobile)
  • Up to 3 seats · 200K events/mo

Pro

Optimize the loop. Budget intelligence, calibration tracking, and learning archive.

$1,200/mo billed annually

Up to 5 seats · 500K events/mo · Unlimited projects

Everything in Starter, plus

  • Full timeline intelligence (read + write)
  • Prediction calibration tracking
  • Blind mode for sales teams
  • Experiment history + learning archive
  • Scoring model drift detection
  • Offline conversion tracking via CAPI
  • CRM score writeback
  • CPWU tracking across channels
  • Email support
  • 50 communications with your brand — no 'Powered by' footer
  • 10 experiments with adaptive Thompson Sampling and up to 4 variants
  • 10 concurrent tests with auto-completion at statistical significance
  • SKAN 4.0 conversion management
  • Cross-platform journey view
Most Popular

Growth

Automate the loop. Apex recommendations, drift detection, and team workflows.

$3,200/mo billed annually

Up to 15 seats · 5M events/mo · Unlimited projects

Everything in Pro, plus

  • Full belief graph (interactive)
  • Behavioral scoring evolution
  • Bayesian experiment evaluation
  • Apex recommendations + weekly summaries
  • Apex drift recommendations + one-click apply
  • Human task engine + approval workflows
  • Historical data import (up to 12 months)
  • Scored audience sync to ad platforms
  • Priority support
  • Unlimited communications with full brand control
  • 50 experiments with funnel diagnostics and auto-optimization
  • Unlimited tests with auto-promote and continuous optimization loop
  • Deferred deep linking
  • Mobile fraud detection
  • Cross-platform experiments
  • Mobile-triggered communication experiments

Scale

Scale the loop. Autonomous optimization, vertical packs, dedicated support.

$7,200/mo billed annually

Up to 40 seats · 50M events/mo

Everything in Growth, plus

  • Advanced identity resolution
  • Thompson Sampling bandits
  • Autonomous drift auto-healing with guardrails
  • Autonomous budget allocation with guardrails
  • Conversion signal feedback to ad platforms
  • Unlimited historical data import
  • Cross-team decision analytics
  • Dedicated CSM + enterprise security
  • Vertical packs included
  • Incrementality testing

Enterprise

Custom volume, SSO/SAML, VPC deployment, multi-region, SLA guarantees, dedicated solutions engineer.

Managing a portfolio?

Each portfolio company runs Apex independently on any plan. You get the intelligence layer across all of them—aggregated benchmarks, cross-company patterns, and a portfolio growth score.

Portfolio dashboard

Aggregated intelligence across all linked companies

Cross-entity benchmarking

Compare velocity, efficiency, and maturity

Push-down playbooks

Share validated beliefs across the portfolio

Interested in shaping the product? Ask about our Design Partner Program — direct access to the product team + influence over the roadmap.

The Data Flywheel

Every user makes the system smarter for every other user.

Apex aggregates anonymized patterns across all organizations — scoring configurations, experiment outcomes, model drift signals. The result: better default templates, industry benchmarks, and AI recommendations that improve with scale. This is the same network effect that made Stripe's fraud detection and Shopify's conversion benchmarks defensible.

nodes 0
connections 0

Templates

Default scoring models improve as more companies across verticals contribute data

Benchmarks

Compare your weighted performance against similar companies in your vertical

Recommendations

AI suggestions get better as the system learns what works across industries

Stop guessing.
Start compounding.

Every experiment your team runs builds institutional knowledge that compounds over time — and survives team turnover. Every day you wait is a day your competitor's system learns something yours doesn't.

Free forever · No credit card required · Set up in under 5 minutes