Apex Documentation
Everything you need to integrate Apex into your stack, run experiments, and turn growth decisions into compounding intelligence.
Quickstart
Install the snippet and run your first experiment in 5 minutes.
Tracking Snippet
Add apex.js to your site for automatic event capture, experiments, and form tracking.
SDK
Track events and identify users from your JavaScript or TypeScript backend.
Server Events API
Send conversion events from your backend via /api/v1/events with API-key auth and idempotency.
The Apex Spec
Canonical event vocabulary every Apex SDK fires and every Apex surface reads. Day-one zero-config.
API Reference
Full reference for every endpoint — events, experiments, beliefs, goals, and more.
Connectors
Connect Google Ads, GA4, HubSpot, Meta, LinkedIn, Stripe, and Clarity.
MCP Server
Use Apex from your IDE with AI coding agents via the Model Context Protocol.
Core Concepts
Understand the mental models behind Apex before diving into the technical integration.