api.shippingrates.org

6 listed endpoints · free reliability snapshot (reduced density)

endpoint	grade	uptime 30d	conf.
/api/inland	C 63.2	80.7%	0.67
/api/cfs	C 62.5	78.9%	0.68
/api/dd/calculate	C 63.3	80.7%	0.68
/api/inland-search	C 62.6	78.9%	0.68
/api/local-charges	C 62.7	78.9%	0.68
/api/dd/compare	C 62.1	77.6%	0.68

Scores use reduced-density sampling; live probe, full 30-min density and 90-day history via the paid API.