Sentry

API

Error tracking and performance monitoring for apps

Price: Free tier, then paid
Access: DSN

About

Application monitoring that groups errors into issues and adds tracing, logs, session replay and profiling, with SDKs for 20+ platforms. Hosted in the US or the EU, or self-hosted under the source-available FSL licence.

What you can do with it

Capture unhandled exceptions with stack traces and group them into issues
Trace slow requests across frontend and backend services
Replay user sessions to see what happened before an error

Get started

Create a Sentry project and copy its DSN
Install the SDK for your platform
Initialize the SDK before the rest of your app loads

Example

// npm install @sentry/node
// instrument.js, loaded first with: node --import ./instrument.js app.js
const Sentry = require("@sentry/node");

Sentry.init({ dsn: process.env.SENTRY_DSN });

Details

Hosting: Hosted service, Self-hosted
Available in: Worldwide
Official SDKs: Python, JavaScript/TypeScript, Go, Java, Ruby, PHP, C#, Swift, Kotlin, Rust, Dart, Elixir
MCP server: Remote