SaaS Tracker Documentation

SaaS Tracker is an AI-native product analytics platform that combines event tracking, funnels, retention, session replay, feature flags, and predictive churn scoring in a single lightweight SDK.

New here? Start with the Quickstart — send your first event in 5 minutes.

Why SaaS Tracker?

Problem	How SaaS Tracker helps
Too many tools to stitch together	Single SDK, single dashboard
BI slowness — hours to get a chart	AI chart builder answers in seconds
Churn caught too late	XGBoost scores every user nightly
Session replay is siloed	Replay + analytics in the same view
Fat SDKs slow your page	≤25 KB gzipped

Architecture overview

Your app → @saas-tracker/sdk (≤25 KB) → Ingest API (Go)
                                              ↓
                                        ClickHouse (events)
                                        Postgres (metadata)
                                              ↓
                                        Dashboard (Next.js)
                                        AI API (Hono + Claude)

Where to go next

Quickstart — send your first event in 5 minutes
API Reference — full HTTP API docs
Features — feature flags, A/B tests, session replay, AI charts
Migrate from PostHog — step-by-step migration guide

Quickstart