Documentation
Everything here is the markdown that ships beside the code, rendered on the server. If a section is missing, it has not been written yet rather than hidden.
Getting started
From an invitation to your first event, in about ten minutes.
SDKs
The four packages, the event envelope they all post, and the one-line script tag.
Recipes
Working setups for Next.js, Vite, plain HTML, Express and Hono.
Analytics
Visitors, paths, retention, replay, heatmaps and the reports built on the events table.
Revenue
Attribution, ad spend, billing adapters and the crawlers that read you.
People
Profiles, segments, campaigns, surveys, feedback and lifecycle journeys.
Reliability
Errors, traces, logs, checks, SLOs, on-call and the infrastructure they run on.
- Error tracking
- Metrics, web vitals, uptime and alerting
- Telegram
- Discord
- WhatsApp Business
- Readable stack traces
- Release health and adoption
- Error ownership and GitHub workflow
- Issue grouping and reversible merges
- OpenTelemetry traces
- Structured application logs
- CPU and memory profiling
- Database performance
- Browser checks
- Browser performance diagnostics
- Cron and background jobs
- Service objectives and error budgets
- On-call routing and incident coordination
- Connected infrastructure
- Load tests and release budgets
Flags
Rollouts, experiments, evaluation gates and production AI quality.
Connect
Destinations, the signed connector, telemetry budgets and identity provisioning.
Management API
Token scopes and every endpoint the console, the MCP server and your scripts share.
MCP
Running the MCP server so an agent can read and change your applications.
Skills
Reusable agent skills for wiring up an application and reading its numbers.
Design
The chart primitives and the palette the console draws with.