US medical-bill rights check, quiz-first (no documents): No Surprises Act protection (45 CFR 149 incl. the never-waivable §149.420(b) list), good-faith-estimate disputes ($400/120-

US medical-bill rights check, quiz-first (no documents): No Surprises Act protection (45 CFR 149 incl. the never-waivable §149.420(b) list), good-faith-estimate disputes ($400/120-day rules), nonprofit-hospital financial assistance + collection shields (26 CFR 1.501(r), 2026 FPL math), ACA appeal deadlines (180-day/4-month windows computed), Medicare MSN redetermination. Citations + deadline math, honest no's. No LLM.

price-ascending: candidates are ordered by the listed price of the operation, with no managed-first preference applied. Unlike /v1/apis, this surface does not rank Apiosk-settled listings above federated ones — a comparison that reorders on commercial grounds is not a comparison. Pass sort=managed_first for the catalog's ordering.

Compared: listed price, settlement rail and input compatibility. Not measured yet: latency, reliability, result quality, and provider terms such as rate limits, jurisdiction and licensing.