Grammarly Reference Architecture

Architecture

┌────────────────────────────────────┐
│         Your Application            │
├────────────────────────────────────┤
│    Content Quality Service          │
│  (Score, AI Detect, Plagiarism)     │
├────────────────────────────────────┤
│    Grammarly API Client             │
│  (Auth, Retry, Cache, Chunking)     │
├────────────────────────────────────┤
│    Grammarly APIs                   │
│  api.grammarly.com                  │
└────────────────────────────────────┘

Project Structure

grammarly-integration/
├── src/grammarly/
│   ├── client.ts        # API client with token management
│   ├── scoring.ts       # Writing Score API
│   ├── detection.ts     # AI + Plagiarism detection
│   ├── chunking.ts      # Large document splitting
│   └── types.ts         # TypeScript interfaces
├── src/services/
│   ├── quality-gate.ts  # Threshold enforcement
│   └── content-audit.ts # Full audit pipeline
├── tests/
└── .env.example

API Decision Matrix

Resources

• Grammarly Developer Portal

Next Steps

Start with grammarly-install-auth.