Should I contribute to a Roth or Traditional IRA/401(k)? Decision calculator with an income-limit eligibility check, backdoor and mega-backdoor Roth eligibility, and the contributi

Should I contribute to a Roth or Traditional IRA/401(k)? Decision calculator with an income-limit eligibility check, backdoor and mega-backdoor Roth eligibility, and the contribution tax math, by income, age, and filing status. For wealth and retirement agents.

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.