Priced by events, not by seats.

Your agent is not a seat. Every plan includes the full triage loop, the MCP server and the REST API — the only thing that changes is how many events you send.

Free

For one project.

$0forever

1,000 events / month

About a side project, or a quiet first week.

  • 1 project
  • 30-day retention
  • MCP server and REST API
  • Email and webhook alerts
Start free
Most popular

Pro

For a product in production.

$19/month

100,000 events / month

About a small SaaS having a bad month.

  • Unlimited projects
  • 90-day retention
  • Component keys
  • Cron monitoring and release health
Start free

Team

For a product with traffic.

$49/month

1,000,000 events / month

About steady production traffic across several services.

  • Everything in Pro
  • 90-day retention
  • Priority support
  • Help migrating off Sentry
Start free

Self-hosted

Run it yourself. AGPL-3.0.

$0forever

Unlimited events

Bounded by your disk, not by us.

  • Unlimited projects
  • Retention you set yourself
  • Every feature the hosted plans have
  • One binary and a Postgres
  • Your error data never leaves
Read the docs

Not sure what you send? Start free — the dashboard shows your real volume within a day.

Pro and Team are not billable yet. Sign up now and you are on Free with the limits lifted — we will tell you before that changes.

Questions worth answering

What counts as an event?

One error or message an SDK sends and Thermite stores. Retries of an event you already sent are deduplicated and cost nothing, and the item types Thermite accepts but does not store — sessions, transactions, client reports — are never charged.

What happens when I hit the limit?

Over-quota events are rejected with a 429 and a Retry-After, exactly as Sentry does, so your SDK backs off and retries instead of failing. Nothing is dropped in silence: every rejection is counted and shown on the dashboard.

Can I move between hosted and self-hosted?

Both run the same software, so the move is a DSN change in your SDK config. Self-hosting is AGPL-3.0 and free for any use, including commercially inside your own company.

Does my error data train a model?

Thermite never calls a model at all. It queues issues, and your own coding agent — running on your machine, under your API key — does the thinking and writes its diagnosis back.

Need something else?

Higher volume, a commercial licence for a fork you cannot publish, or an invoice instead of a card — all fine. Say what you need.

mail@haukejung.de