Free to look. One price to be warned ahead of time.
The blast-radius scan and the public archive cost nothing. You only pay for the recurring watch on your exact stack — the Sunset Calendar the free tier structurally can't replicate. Flat pricing, cancel anytime, self-serve in the billing portal.
Free
Look at what already happened.
- Full public archive — every tracked deprecation & price change, searchable
- Free stack blast-radius scan — paste package.json, get the verdict (no signup)
- Free Watch: up to 3 vendors
- Weekly change notifications for your 3 declared vendors
Pro
Never get blindsided again.
- Unlimited vendors — watch your whole stack, not just 3
- The Sunset Calendar — auto-updating .ics feed + Slack/email reminders
- Instant alerts on Breaking changes & price hikes the moment they land
- Weekly digest of everything that moved in your stack
- Stack import from package.json — semver-aware, version-pinned
- Pricing-history charts for every vendor you depend on
Team
For the 2–15 person eng team.
- Everything in Pro
- Webhooks — pipe alerts & digests into Slack/Discord/your endpoint
- 5 seats — your whole engineering team on one watch
- API access — query the change archive & your stack programmatically
- Priority coverage — request a vendor and we backfill it first
Pricing questions
What exactly does the free scan show me — and what does it cost?
Nothing, and no account. You paste your package.json; we match every dependency against our archive and return a verdict — how many of your deps already shipped breaking changes, how many vendors raised prices in the window, and one concrete, sourced example. The free scan is a snapshot of the past. The Sunset Calendar — the live watch on upcoming changes for your exact stack — is the paid part, because that's the value that recurs.
Is $24 flat, or does it scale with my stack?
Flat. Pro is $24/mo for unlimited vendors — 8 APIs or 40, the price doesn't move. We don't meter per-vendor or per-alert. Team is a flat $49/mo for 5 seats, webhooks, and API. Annual on either runs ~2 months free.
Do you send my code or package.json anywhere? Is my stack private?
We read dependency names and versions — never your source. Your declared stack is stored under row-level security, used only to compute your alerts and calendar, and never sold, pooled, or shown to anyone else. The public archive is built from vendors' own changelogs, not from customers' manifests.
Isn't this just an RSS reader or a Dependabot I could set up myself?
RSS gives you every change from every vendor and leaves the filtering — the actual work — to you. Dependabot watches package versions, not vendor changelogs, deprecations, or pricing. ChangelogRadar reads the firehose, classifies each change (Breaking / Deprecation / Price-change / Routine), matches it against the exact versions you run, and only pings you for the ones that touch your code — with the upcoming ones on a calendar before they break.
What stops you from missing a change, or a competitor from cloning this?
On misses: for a vendor we don't track yet you see a coverage-pending flag — never a false all-clear — and every item is sourced and dated so you verify us, not trust us. On cloning: anyone can build a changelog reader; what's hard to copy fast is the backfilled archive of historical deprecations and price changes matched to specific versions.
What happens when I cancel?
You drop to Free: the public archive and the blast-radius scan stay available, and your Free Watch covers up to 3 vendors. Your Sunset Calendar .ics feed and instant alerts switch off, and stack import past 3 vendors pauses. No data is deleted; resubscribe and your watch resumes where it left off.