POST /api/energystar/products/most_efficient
Price: 20 credits
Read an ENERGY STAR Most Efficient list — the annual shortlist of the best-performing certified models in a category, a stricter bar than ENERGY STAR certification itself. Returns the same full certification record as the product search, and takes the same brand, model number, market, free-text, exact-match and numeric-bound filters over the category's measured columns.
Most Efficient is a separate, stricter designation than ENERGY STAR certification, so this is not the same as filtering the whole category — use it when the question is about the best models rather than the qualifying ones. Its category list is shorter than the certification categories and the names differ: clothes_washers here covers residential washers only, and the heat-pump lists split by duct type. The lists are re-cut each year, so a category can be empty between cycles, which answers 412 rather than signalling a problem; energystar/product_types reports the current size of each. Column names for `filters`, `min_values`, `max_values` and `sort` are the underlying category's.
access-token string requiredtimeout integer — Max scrapping execution timeout (in seconds) (default: 300; min: 20; max: 1500)product_category string required — Category whose Most Efficient list to read (one of: "air_source_heat_pumps", "ceiling_fans", "clothes_dryers", "clothes_washers", "dehumidifiers", "dishwashers", "displays", "ducted_heat_pumps", "geothermal_heat_pumps", "mini_split_heat_pumps", "residential_freezers", "residential_refrigerators", "room_air_cleaners", "room_air_conditioners", "ventilating_fans"; examples: "residential_refrigerators", "clothes_washers", "air_source_heat_pumps")brand string nullable — Brand name, matched exactly (minLength: 1)model_number string nullable — Model number, matched exactly (minLength: 1)text string nullable — Free-text search across every column of the list (minLength: 1)market string nullable — Keep models certified for this market (one of: "United States", "Canada", "Taiwan", "Japan", "Switzerland", "Europe", "Australia", "New Zealand")filters object nullable — Exact-match filters on any column of the underlying category, keyed by the programme's own column name* stringmin_values object nullable — Lower bounds on numeric columns of the category* numbermax_values object nullable — Upper bounds on numeric columns of the category* numbersort string nullable — Column to order by. Unset orders by product id (minLength: 1)order string — Direction for sort (default: "ASC"; one of: "ASC", "DESC")count integer required — Max number of results to return (min: 1; max: 150000)@type string (default: "EnergystarProduct")id string requiredproduct_category string nullableproduct_type string nullabledataset_id string nullabledataset_name string nullablebrand string nullablemodel_name string nullablemodel_number string nullableenergy_star_model_identifier string nullableenergy_star_partner string nullableadditional_model_information string nullableupc string nullablemarkets array (default: [])is_most_efficient boolean nullableavailable_on_market_date string nullablequalified_date string nullablecertified_date string nullableattributes object (default: {})422 — A column name the underlying category does not have. Check the fields against this schema. A URN with the wrong prefix is the most common cause.408 — The request ran past its time limit Raise `timeout` in the request body, up to the maximum this endpoint documents. Lowering `count` or turning off the `with_*` flags also helps, because less work finishes sooner.412 — That Most Efficient list is empty for the current cycle, or nothing in it matched the filters. Retrying will not help: either the entity does not exist, or the input points at a different one.429 — Too many requests: a rate limit or a usage window is exhausted When the response carries an X-Retry-After header, wait that many seconds and retry: the same number is in the body as `detail.retry_after`, and the limit clears once that window passes. The message in the body names the limit that was hit.500 — Something broke on our side Retrying will not help. If it keeps happening, send us the X-Request-ID from the response headers.529 — Rate limit reached, or the endpoint is overloaded Wait at least 30 seconds, then retry.X-Error — Error message text (present only on error)X-Request-ID — Unique request identifierX-Execution-Time — Execution time in secondsX-Result-Count — How many records the body carries. 0 means an empty result, which is a normal answer and not by itself an error. A non-zero count can come back together with X-Error when the failure happened partway through — read this header and X-Error independently.X-Total-Available-Results — How many records exist for this query, when the endpoint can say. On a `dry_run` request this is the answer and the body is empty. It saturates: the endpoint's documented maximum means 'at least that many', any smaller number is exact.X-Warning — Present when the request body carried keys this endpoint does not document. They were ignored, so any filter you meant to apply through them did not apply. Check the spelling against this schema and retry.X-Retry-After — Seconds to wait before retrying. Present only on 429.