Rate Limits & Throughput Quotas
Aevum Zenth APIs implement sliding-window rate limiting across all endpoints to ensure platform stability, equitable resource distribution, and optimal performance for integrated systems.
Tier Allocation Matrix
| Metric | Developer | Standard | Professional | Enterprise | Sovereign |
|---|---|---|---|---|---|
| Requests / Second (Sustained) | 10 | 100 | 500 | 2,000 | Custom |
| Burst Allowance (per window) | 20 | 300 | 1,500 | 6,000 | Custom |
| Concurrent Connections | 5 | 25 | 100 | 500 | Dedicated Pool |
| Daily Quota | 50,000 | 5,000,000 | 50,000,000 | Unlimited | Unlimited |
| Webhook Delivery Rate | 10/min | 60/min | 300/min | 1,000/min | Custom |
| File Upload / Minute | 5 | 50 | 200 | 1,000 | Custom |
Technical Implementation
Response Headers
429 Too Many Requests
{
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"message": "You have exceeded your allocated request quota.",
"details": {
"limit": 1000,
"window_seconds": 3600,
"retry_after": 45,
"quota_reset_utc": "2026-05-20T14:30:00Z"
}
}
}
Best Practices & Optimization
⏱ Exponential Backoff
Implement randomized exponential backoff when encountering 429 responses. Base delay should be 2^n * jitter where n is the retry attempt to prevent thundering herd scenarios.
📦 Request Batching
Utilize the /batch endpoint to combine up to 50 operations into a single request. This reduces network overhead, minimizes quota consumption, and improves overall throughput.
💾 Caching Strategy
Leverage ETag and Last-Modified headers. Aevum Zenth APIs support conditional requests (304 Not Modified) to reduce redundant processing and quota consumption.
📊 Monitoring & Alerts
Integrate with our Developer Console alerts or webhook notifications to track quota consumption at 80%, 90%, and 95% thresholds. Proactive monitoring prevents service interruptions.
Requesting Limit Increases
For production workloads exceeding tier allocations, submit a quota expansion request via the Developer Console or contact your Enterprise Solutions Architect. Sovereign-tier clients receive dedicated infrastructure with configurable sliding windows, isolated load balancers, and custom throughput SLAs.