Limits

Rate limit

Key	Default
mxheadless_rate_limit_enabled	true
mxheadless_rate_limit_max_requests	120
mxheadless_rate_limit_window_seconds	60

Account key: IP (after trusted proxies) + identity. Response headers: X-RateLimit-Limit, Remaining, Reset. Exhaustion → 429 rate_limited.

Per-key: rate_limit_max / rate_limit_window on API key or OAuth client.

Input

Key	Default
mxheadless_max_body_bytes	1048576 (1 MB)
mxheadless_max_uri_bytes	2048

Query

Key	Default
mxheadless_max_limit	100
mxheadless_max_offset	100000
mxheadless_max_fields	50
mxheadless_max_include_relations	10
mxheadless_max_include_depth	2

List default limit=20. page and offset together → 422.