Error tracking & observability
Trace
Analytics for coding agents to read and fix problems
Open-source analytics that finds dead clicks, rage clicks, errors and drop-offs, hands them to your coding agent over MCP, and checks whether each fix worked.
Overview
The Trace homepage
Trace is analytics built for AI agents. A lightweight 8.4 KB script measures user behavior in the browser—pageviews, clicks, scrolls, forms and errors. A Rust server aggregates and ranks problems by the number of visits they hurt. Your coding agent reads the totals over MCP, proposes fixes with evidence, and Trace checks whether they worked after release.
It works with Claude Code, Cursor or any MCP client. Goals live in your trace.json file alongside your code, reviewed in pull requests. The system includes a Welch test to verify fixes with statistical rigor over 14-day periods, avoiding false positives from lucky weeks.
Trace never stores request bodies, parameters, headers, cookies, environment variables or source code. Personal data like emails and phone numbers are scrubbed in the browser and again on the server. You choose hosted (free for 1 site and 100,000 events per month) or self-hosted open-source with no limits.
Capabilities
- Server error tracking for Rust, Node.js and Ruby with backtrace, route and release context
- Groups errors by class and first frame of own code
- Ties errors to visits to show how many visits each error broke
- Tracks clicks, scrolls, rage clicks, dead clicks and form steps
- Goals as code in trace.json with conversion and error rate targets
- Statistical significance testing with Welch test over 14-day periods
- MCP integration with Claude Code, Cursor and other agents
- Scrubs personal data like emails and phone numbers on browser and server
- Daily-salted hash for visitor identification without storing IP addresses
Pricing
Pricing model: Freemium
Hosted Free: €0 for 1 website, 100,000 events per month, 30 days of data, 1 person. Team plan available by contacting sales. Community (self-hosted): Free and open source with no limits.
Follow Trace to get an email when they post a milestone, ship a new product or add a demo video.
Trace fact sheet
| Community votes | 0 |
|---|---|
| Based in | Helsinki, Finland |
| Website | tracetells.com |
Trace metrics
Vendor metrics for tracetells.com: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.
- Domain Rating
- 0
- no change since last check
- Trust Flow
- 0
- no change since last check
- Citation Flow
- 0
- no change since last check
- Referring domains
- 0
- no change since last check
- External backlinks
- 0
- no change since last check
Vendor Domain Rating (Ahrefs) checked 5 Nov 2026, spec changed 4 Nov 2026. Vendor Majestic data checked 4 Nov 2026, spec changed 4 Nov 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Trace vendor domain
Open the vendor record
We read this from the registry's RDAP record on 6 Nov 2026, 12:27 UTC.
- Domain age
- 9 days
- Registered
- Expires
- Registrar
- NameCheap, Inc.
- DNSSEC
- Not signed
Trace post-launch report
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 0 to 0 no change since launch 4 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 0 first measured 4 Nov 2026 |
| Referring domains (Majestic) | 0 first measured 4 Nov 2026 |
Day 1 since launch. Next receipt: day 30, 4 Dec 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.
About to launch?
Plan your launch with our free playbook, from preparing your listing to choosing more launch directories.
- The week before
- On the day
- Week one
- Beyond launch
Compare and explore
See the alternatives to Trace, more in Error tracking & observability or startups in Finland.
Buyer questions
What counts as an event?
A pageview, a click, a scroll mark, a form step, an error or an event you send. Every click counts, so a busy page uses more events than a quiet one.
What happens at the limit?
Your website is never affected. Trace stops recording until next month and tells you how much it skipped.
Do I pay for the AI?
Not to us. Analysis runs in your own coding agent, on the plan you already have.
Can I move from hosted to self-hosted?
Yes. It is the same software. Your trace.json and tag stay the same; only the server address changes.
What data is never sent to Trace?
Request bodies, parameters and query strings, headers and cookies, environment and local variables, and source code or host names are never sent. Emails, tokens, card numbers and phone-like numbers are scrubbed before data leaves the browser.
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Trace has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)