You climb. We hold the rope.
Belay is an AI pair engineer that works inside your codebase. It traces the cause of a bug and explains unfamiliar code, and you make every decision.
Symptom: checkout times out under load
IllustrativeNo files changed. Your decision.
An invented codebase, drawn the way the prototype shows one: as a 3D structure. The files and causes are examples.
Status, November 2026
Working in our internal prototype, for TypeScript and Python: root-cause tracing, codebase mapping and design pressure-testing.
Looking for 5 to 8 engineering teams as design partners.
- Developer leadsBelay proposes. You decide.
- Show the traceEvery answer cites its files, tests and assumptions.
- Catch the fallBlast radius, tests and rollback come before risky changes.
- Leave them strongerIt explains the system as well as the fix.
What is on this site
- ProductThe four capabilities, and how a trace works.
- Use casesDebugging, onboarding and risky changes.
- PricingThe planned plans and prices. Nothing is for sale yet.
- Design partnersWork with us on your own codebase.
- SecurityHow your code will be handled.
- AboutWhy the name, the principles and the founder.
- ContactWho to write to about what.
How a trace works
Root-cause tracing is the first capability we built. This is what happens when you ask Belay why something is failing.
See each step drawn outYou describe the fault
Tell Belay what is going wrong, in your own words. For example: checkout times out under load.
Belay reads the code
It follows the fault across logs, code, tests and recent changes. It reads. It does not edit.
It ranks the likely causes
You get a ranked list of likely causes, each with the files, tests and assumptions behind it, so you can check the reasoning.
You decide
You choose what happens next. Belay changes nothing until you say so.
What works today, and what comes next
Checked 10 November 2026.
In our internal prototype
These work today, inside our team only. Nobody outside the team can use Belay yet.
- Root-cause tracing, for TypeScript and Python
- Codebase mapping
- Design pressure-testing
- A 3D view of the codebase
What's next
Targets, counted from the plan's first month, February 2027. They may move.
- Root-cause tracing with the first three design partnersQ2 2027
- A published time-to-diagnosis benchmark with partnersQ3 2027
- Team plans with repository integrationsQ4 2027
- A self-hosted option for enterprise pilotsQ1 2028
- IDE integrationsBy Q3 2028
- Private deployment, admin controls and compliance reportingFrom Q3 2028
- The safe-change workflowNo target yet
- An audit log of every stepNo target yet
- A data-handling policy, including no training on customer codeNo target yet
Founder
Isreal Unamka
Founder
Isreal founded Belay and leads its product direction and its early engineering and architecture decisions.
AI that climbs with you, not for you.
Work with us as a design partner: bring a large or legacy codebase, and help decide what Belay becomes.
