The default flow: ZIP → county → search → enrich. Use marketplace_find_plans as the one-shot for plan discovery. See the War Room example.
Tools
marketplace_county_by_zip— Resolve a ZIP to county + FIPS.marketplace_plan_search— Search plans for a household + county.marketplace_plan_detail— Full benefit grid for a single plan ID.marketplace_subsidy_estimate— APTC estimate for a household.marketplace_find_plans— High-level "find me plans" flow (ZIP → county → search).marketplace_crosswalk— Renewal crosswalk between plan years.marketplace_rate_areas— Rate areas in a state.marketplace_drug_autocomplete— Drug name autocomplete.marketplace_drugs_covered— Check drug coverage for a plan.marketplace_provider_autocomplete— Provider name autocomplete.marketplace_providers_covered— Check provider in-network for a plan.