ContractProof

Bob-Powered API Drift Guard

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🚀 Built with IBM Bob for the IBM Bob Hackathon

Stop Shipping Broken APIs

Detect API contract drift across your backend, frontend, documentation, and tests before it reaches production. Powered by IBM Bob's full repository understanding.

The Problem: API Drift Causes 40% of Production Incidents

Without ContractProof

// Backend
app.get('/api/v2/users/:userId', ...)

// Frontend (outdated)
fetch('/api/users/' + id)

// Docs (outdated)
GET /api/users/:id

Result: 404 errors in production

With ContractProof

✓ Backend detected
app.get('/api/v2/users/:userId', ...)

⚠ Drift detected
fetch('/api/users/' + id)

💡 Suggested fix
fetch('/api/v2/users/' + userId)

Result: Bug caught before deployment

How ContractProof Works

Multi-Language Analysis

Detects API routes in Express, FastAPI, Flask, Next.js. Finds calls in React, fetch, axios, React Query.

Smart Drift Detection

Cross-references backend, frontend, docs, and tests. Detects path changes, method mismatches, schema drift.

Bob-Powered Fixes

Every finding includes "Prompt Bob to Fix" with full context. Copy, paste, and let Bob resolve the drift.

Ready to Stop API Drift?

Try our interactive demo with a realistic broken repository

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