# Atrix Analytics > Product analytics, session replay, feature flags and experiments, with data kept in the region you choose, one predictable meter, and an AI analyst whose every number links to the query that produced it. Key facts: public project keys look like `atx_pk___<22 chars>` and pick the ingest host (`https://eu.i.analytics.atrix.dev` for EU). Money is integer minor units plus an ISO 4217 currency. Every event has a client-generated UUIDv7. IP addresses are never stored. The control-plane API is `https://app.analytics.atrix.dev/v1` (OpenAPI at `https://app.analytics.atrix.dev/openapi.json`); the hosted MCP server is `https://mcp.analytics.atrix.dev/mcp` (OAuth 2.1). The full documentation as one Markdown file: https://analytics.atrix.dev/llms-full.txt ## Start - [Introduction](https://analytics.atrix.dev/docs/): What Atrix Analytics is, how it is laid out, and where to start. - [Getting started](https://analytics.atrix.dev/docs/getting-started/): Sign up, create a project, copy its key and see your first event, in about five minutes. ## Instrument - [SDKs](https://analytics.atrix.dev/docs/sdks/): Every Atrix SDK shares one behaviour spec. Pick your platform. - [Web](https://analytics.atrix.dev/docs/sdks/web/): @atrix.dev/analytics-web: events, pageviews, identity, consent, flags and session replay in 7.7 KB. - [React](https://analytics.atrix.dev/docs/sdks/react/): Use the web SDK in React, Next.js and other React frameworks. - [React Native and Expo](https://analytics.atrix.dev/docs/sdks/react-native/): @atrix.dev/analytics-react-native: offline queue, background flush, screens by route pattern, native replay. - [Node.js and Bun](https://analytics.atrix.dev/docs/sdks/node/): @atrix.dev/analytics-node: batched, gzipped, retrying server-side capture that never throws. - [Python](https://analytics.atrix.dev/docs/sdks/python/): atrix-analytics for Python 3.9+: thread-safe, dependency-free, never raises. - [Go](https://analytics.atrix.dev/docs/sdks/go/): Server-side capture and flags for Go 1.21+, standard library only, never panics. - [iOS](https://analytics.atrix.dev/docs/sdks/ios/): AtrixReplay, native wireframe session replay for iOS 15+. - [Android](https://analytics.atrix.dev/docs/sdks/android/): dev.atrix:replay, native wireframe session replay for Android (minSdk 24). - [Identity](https://analytics.atrix.dev/docs/identity/): How anonymous visitors become people, when merges are refused, and how to undo one. - [Tracking plan and codegen](https://analytics.atrix.dev/docs/tracking-plan/): The Catalog records what every event means; the CLI turns it into typed wrappers. ## Product - [Feature flags](https://analytics.atrix.dev/docs/flags/): Rollouts, targeting, bucketing that is identical in every SDK, and local evaluation on your servers. - [Experiments](https://analytics.atrix.dev/docs/experiments/): A/B tests on top of flags, with sequential statistics that are safe to peek at, CUPED and SRM checks. - [Session replay](https://analytics.atrix.dev/docs/session-replay/): Web and native mobile replay, masked on the device by default, in one player. - [Revenue](https://analytics.atrix.dev/docs/revenue/): Connect Stripe, RevenueCat, the App Store and Google Play, and see revenue next to behaviour. - [Ask](https://analytics.atrix.dev/docs/ask/): An AI analyst that cannot state a number it did not query, and shows you the query. - [Findings](https://analytics.atrix.dev/docs/findings/): Automatic anomaly detection with root cause, delivered to Slack, email or a webhook. ## Build on it - [MCP](https://analytics.atrix.dev/docs/mcp/): Connect Claude Code or any MCP client to your analytics over OAuth, with scopes you choose. - [API overview](https://analytics.atrix.dev/docs/api/): Tokens, scopes, errors, rate limits, dry runs and idempotency for the Atrix REST API. - [Capture API](https://analytics.atrix.dev/docs/api/capture/): The ingest endpoints the SDKs use, for languages without an SDK. - [Region API](https://analytics.atrix.dev/docs/api/region/): Query your data directly in its region with a short-lived region token. - [Token API (/v1)](https://analytics.atrix.dev/docs/api/reference/v1/): Programmatic endpoints, authenticated with a Bearer token (a personal access token atx_pat_… or an OAuth token atx_oat_…). - [OAuth 2.1](https://analytics.atrix.dev/docs/api/reference/oauth/): Authorization-server metadata, dynamic client registration, token and revocation endpoints used by MCP clients. - [Console API (/app)](https://analytics.atrix.dev/docs/api/reference/console/): Session-cookie endpoints the console calls. Documented for completeness; integrate against /v1 instead. - [Schemas](https://analytics.atrix.dev/docs/api/reference/schemas/): Every request and response body in the control-plane API. - [SQL](https://analytics.atrix.dev/docs/sql/): Query your events, people, sessions and revenue with SQL, safely scoped to your project. - [Tables and functions](https://analytics.atrix.dev/docs/sql/tables-and-functions/): Every virtual table, column and allowed function in Atrix SQL, generated from the compiler. ## Operate - [Data residency, erasure and export](https://analytics.atrix.dev/docs/data-residency/): Where your data lives, how personal data is erased with a signed certificate, and how to export it. - [Self-hosting](https://analytics.atrix.dev/docs/self-hosting/): The licence, what runs where, and the state of the self-host bundle. - [Migrating from PostHog, Segment or Statsig](https://analytics.atrix.dev/docs/migrating/): Drop-in ingest endpoints, a posthog-js shim, and importers for history, flags and experiments. ## Optional - [Home](https://analytics.atrix.dev/): Sovereign, mobile-first product analytics with an AI analyst you can check. - [Product](https://analytics.atrix.dev/product/): Every product area on one event model. - [Product analytics](https://analytics.atrix.dev/product/analytics/): Trends, funnels, retention, paths, stickiness and lifecycle over the same events, with SQL when you need to go further. Charts show you the query behind them. - [Session replay](https://analytics.atrix.dev/product/session-replay/): Web replay with rrweb, and native wireframe replay for iOS, Android and React Native. One player for both. Everything sensitive is masked on the device before it is recorded. - [Flags & experiments](https://analytics.atrix.dev/product/flags-and-experiments/): Feature flags with per-environment configuration and local evaluation, and experiments with sequential statistics that stay correct however often you look. - [Ask](https://analytics.atrix.dev/product/ask/): Ask a question in plain language. Every number in the answer is bound to the query that produced it, and you can open that query. - [Revenue](https://analytics.atrix.dev/product/revenue/): Connect Stripe, RevenueCat, the App Store and Google Play. Revenue is verified at the source, normalised, converted, and linked to the person who paid. - [Findings](https://analytics.atrix.dev/product/findings/): Findings watches the metrics you choose, flags changes that are unusual for that hour and weekday, and explains which platform, version, country or flag drove them. - [Data & privacy](https://analytics.atrix.dev/product/data-and-privacy/): Pick a region per project. Events, people, recordings and AI answers are stored and processed there, and nowhere else. - [Pricing](https://analytics.atrix.dev/pricing/): One meter (events), a spend cap, plans from free to $499 a month. - [Atrix Analytics vs PostHog](https://analytics.atrix.dev/compare/posthog/): PostHog is a broad, open-source product suite with a large community. Atrix is narrower on purpose: in-country hosting outside the US and EU, a single billing meter, native wireframe replay for mobile, and an AI analyst whose numbers are bound to queries. - [Atrix Analytics vs Mixpanel](https://analytics.atrix.dev/compare/mixpanel/): Mixpanel is a mature, polished event-analytics product with a long track record. Atrix adds in-country regions outside the US and EU, replay, flags and experiments on the same event model and bill, and an MCP-first API. - [Atrix Analytics vs Amplitude](https://analytics.atrix.dev/compare/amplitude/): Amplitude is an established digital-analytics platform with a broad enterprise suite. Atrix is smaller and more focused: in-country regions outside the US and EU, one meter, transparent self-serve pricing, and open source. - [Security and privacy](https://analytics.atrix.dev/security/): Residency, minimal collection, tenant isolation, credentials. - [Changelog](https://analytics.atrix.dev/changelog/): What shipped, newest first.