Rate Limits
Quota and throttling behavior for anonymous free usage and registered account usage.
Rate Limits
Map Zena has one free daily allowance and one metered overage model. No monthly tiers or bundled plans.
Usage quotas
| Mode | Limit | Burst |
|---|---|---|
| Anonymous (no key) | 500 requests/day | 2 req/s |
| Registered key | Metered by account credit | 30 req/s default |
Pricing above free allowance
Usage beyond the free daily quota is charged at $0.50 per 1,000 queries ($0.0005/query), deducted from account credit.
Response headers
http
X-RateLimit-Limit: 500 X-RateLimit-Remaining: 287 X-RateLimit-Reset: 1745107200
Reset behavior
Daily anonymous quotas reset at 00:00 UTC. Burst windows are sliding and measured over short intervals per key or anonymous client.
Over-limit responses
When anonymous quota is exhausted, APIs return HTTP 429 with anonymous_quota_exceeded. Registered keys with insufficient balance return HTTP 402 with insufficient_credit.