Rate limits

Fair usage limits to keep the service fast for everyone.

Current limits

TierLimitWindow
API key (free tier)10 requestsper minute
API key (paid)60 requestsper minute
x402 (per wallet)30 requestsper minute

Rate limit headers

Every response includes rate limit information:

HeaderDescription
X-RateLimit-LimitMaximum requests per window
X-RateLimit-RemainingRemaining requests in current window
X-RateLimit-ResetUnix timestamp when the window resets

When you hit the limit

You'll receive a 429 Too Many Requests response. The Retry-After header tells you how many seconds to wait. Back off and retry — don't hammer the endpoint.

Need higher limits? Contact hello@nightglass.xyz with your use case. Enterprise limits are available.