AI schema extraction
LLMs read your changed frontend files and return structured routes, types, and API contracts — Zod-validated JSON your pipeline can trust before a single line of backend is written.
CODASYNCFrontend-first backend generation
Ship the frontend while we hit it from the back
CodaSync observes every React and Next.js change, AI generates the Express and TypeScript backend to match, and nothing ships until you review the diff.
No credit card · Connect a repository in under two minutes
Observe. Generate. Review.
One pipeline from frontend change to a reviewed backend — built for teams that stay in control while AI does the heavy lifting.
Step 1
Observe
Connect a GitHub App or drop in the SDK. CodaSync watches your React and Next.js frontend as commits land, captures file diffs, and deduplicates identical events so the same push never queues twice.
Step 2
Extract & generate
Queued AI jobs read the change set, extract routes, types, and contracts, then propose production Express + TypeScript handlers with Zod validation and SQL migrations — typed, validated, and ready to review.
Step 3
Review & approve
Open a side-by-side diff with migration risk callouts. Approve, reject, or request changes. Nothing is applied to your backend until a human decision is recorded — correctness over speed, every time.
Built for correctness at scale
Queued, cached, and metered AI jobs — with hard billing limits — so generation stays fast for your team and safe for the platform.
Production codegen
Express handlers, Zod request schemas, and SQL migrations are generated together, then checked. Error handling, input validation, and transactional boundaries ship as defaults — not TODOs.
Diff-first review
Every proposal opens as a review session with file-level diffs and migration warnings. Approve, reject, or request changes — the audit trail stays attached to the generation forever.
GitHub & SDK sync
Idempotent webhooks and multi-tenant RLS mean the same delivery never double-runs, and one org never sees another’s code. Built to hold thousands of projects without silent failures.
From push to approved backend
Watch the full loop: a frontend change is observed, schemas are extracted, Express code is proposed, and a human approves the diff before anything ships.
Pricing that meters AI, not surprises
Plans map to billing subscriptions: project caps, monthly generation limits, and token quotas with hard stops — so runaway jobs never become runaway bills.
Free
$0
5 projects · 50 AI generations / month · 1 concurrent job. Enough to wire a repo, run the observe → generate → review loop, and see production-ready diffs before you upgrade.
Start freePro
$49
Higher project and generation limits · elevated monthly token budgets · 5 concurrent jobs. Built for teams shipping frontend changes daily without waiting on a single queue slot.
Upgrade to ProEnterprise
Custom
Dedicated concurrency (up to 20+ in-flight jobs) · custom token and generation caps · SSO-ready org controls. Metered, multi-tenant isolation for organizations that cannot afford silent failures.
Talk to usShip backends that match your frontend
Connect a repo, push a change, and review the AI-proposed Express backend — with Zod schemas and SQL migrations — before anything is applied. Frontend stays the source of truth.