How to Get BUFF Fade Price History

cs2.sh records BUFF Fade price history for each published fade-percentage bucket. POST /v1/market/buff/history returns ask, average-ask, and bid OHLC from May 19, 2026 at 30m, 1h, or 1d intervals.

A Fade percentage should be mapped to the range BUFF publishes for that item. The endpoint does not assume one universal set of Fade buckets, and the same item can also expose combined float-and-fade ranges.

BUFF Fade history data#

BUFF range data distinguishes four bucket types:

• base covers the complete item or variant.
• fade selects a fade-percentage range through fade.min and fade.max.
• float selects a float range.
• float_fade applies both a float range and a fade range.

Each range has a stable bucket_id shared by the latest and history endpoints. History points contain OHLC for ask, avg_ask, and bid. They also carry the last observed ask_volume and bid_volume for that interval. The dedicated BUFF dataset refreshes every 10 minutes.

Range history starts May 19, 2026. 30m requests can cover up to 90 days, 1h requests up to 365 days, and 1d requests have no public maximum range.

Match a percentage to its historical series#

Use GET /v1/market/buff/latest to inspect the item's current buckets. Select the fade bucket where the requested percentage is at least min and below max, then retain its bucket_id.

Request the exact base market_hash_name on the history endpoint. The response returns all available buckets for the item, so select the historical bucket with the identifier discovered in the current snapshot.

To measure a Fade premium, compare the Fade bucket's close_ask with the base bucket's close_ask at the same bucket timestamp. This keeps movement in the whole item from being counted as Fade overpay. The BUFF history reference documents the full point shape.

Applicable endpoints#

Range and price caveats#

• Bounds include min and exclude max. A 97 percent Fade belongs to a bucket beginning at 97, not one ending at 97.
• The value 100 will not match a bucket whose exclusive upper bound is 100. Use only a range actually returned for the item.
• close_ask is a listing floor, and close_avg_ask is the average active listing ask. Neither field shows completed-sale prices.
• Missing range points should remain missing. Filling a gap from the base item or an adjacent Fade bucket changes the market being measured.

See current BUFF Fade prices for the latest range selection before requesting its history.