Quotas & Plans
TxProof enforces limits to ensure fair usage and stability. Limits apply at two levels: Real-time Rate Limits (RPS) and Monthly Usage Quotas.
Limit Types
Rate Limit (RPS)
Protects the system from bursts.
Enforced via Token Bucket algorithm.
50 - 100req / sec
Monthly Quota
Total requests allowed per billing cycle.
Based on your subscription plan.
1k - 100k+req / month
Response Headers
Every API response includes headers indicating your current quota status.
| Header | Description |
|---|---|
| X-Quota-Limit | Total monthly request limit for your plan. |
| X-Quota-Used | Requests consumed in the current period. |
| X-Quota-Remaining | Requests remaining before overage/blocking. |
Error Codes
429
Rate Limit Exceeded
You are sending requests too fast (RPS limit hit).
Action: Implement exponential backoff. Wait 1-2 seconds before retrying.
402
Payment Required (Quota Exceeded)
You have used all requests in your monthly quota.
Action: Upgrade your plan in the dashboard to increase limits.