The missing layer between
your code and your contracts.

Stoney learns your API contracts from live traffic—no docs to write, no tests to maintain.

Connect to Jira and track how your codebase evolves. Your business rules, always in sync.

Start free
app.stoneydev.com
Live
80%
Pass rate
4/5
Rules passing
3m
Last verified
Recent activityView all →
Free users cannot export reports
Billing · 2m ago
Pass
Only admins can delete projects
Auth · 2m ago
Pass
Deleted users cannot reset password
Auth · 2m ago
Fail

Key metrics

< 5 min to first rule running
Zero CI config to write
100% automated verification

The problem

Business rules live in tickets.
Your code has no idea they exist.

An engineer refactors auth. A permission check disappears. Every test passes. You find out when a customer reports it. This happens to every fast-moving team.

Without Stoney
  1. Rule defined in Jira
  2. Engineer refactors code
  3. All tests pass
  4. Ships to production
  5. Customer reports the bug (problem)
  6. Emergency hotfix at 2am (problem)
Hours of downtime, lost trust
With Stoney
  1. Stoney learns your API from traffic
  2. Engineer refactors code
  3. Deploys to production
  4. Stoney alerts on drift (alert)
  5. Fixed in minutes (success)
Minutes to detect, not days
73%
of regressions are business logic bugs
4.2h
average time to detect in production
$12k
average cost per incident
Stop shipping regressions

How it works

Three steps.
No configuration.

  1. Step 1: Connect your repo

    Link GitHub in one click. Stoney scans your codebase, maps your API surface, and generates checks from real behavior. No YAML. No config files. Nothing to install.

  2. Step 2: Review and activate

    Open Discover. Stoney shows every business rule it found — "free users can't export", "only admins can delete" — with a suggested check ready to go. Click Activate.

  3. Step 3: Know the moment something drifts

    Stoney monitors your live traffic continuously. When a response shape changes or a rule stops being enforced, your team is alerted — with the exact deployment that caused it.

The dashboard

Every business rule.
One place.

Pass rate across your entire codebase, organized by domain. See exactly what's drifting — without digging through test logs.

See Stoney in action

2 min demo video

  • Rule Registry

    Every business rule organized by domain, owner, and current pass rate. One place to see what's enforced.

  • Health Feed

    Every run, every repo, chronological. Filter by repo or domain in one click to see what matters.

  • Drift Alerts

    Email and Slack the moment a rule stops being enforced. No more silent regressions reaching customers.

FAQ

Common questions

Still have questions?

We're happy to help — no sales pitch, just answers.

Contact us

Stop shipping
silent regressions.

Join the teams who know — on every deploy — that their business rules are still enforced.

Free tier includes 1 app · No credit card required