How to Get CSFloat Sales History with an API
Updated
API reference: POST /v1/archive/csfloat
The CSFloat sales history API returns daily arithmetic average completed-sale price and sale count from 2022 onward through
POST /v1/archive/csfloat.
This archive answers what sold on CSFloat, at daily aggregate resolution. It does not return individual transactions or listing-floor OHLC.
Available CSFloat sale history
Each day has date, price, and volume. price is the arithmetic average of all represented completed sales in USD. volume is the count of those sales. The archive updates once or twice per day.
Doppler and Gamma Doppler archive data can appear under variants. These series retain phase identity through display_name and stable version codes. Case Hardened tier and Blue Gem sale histories are not collected.
Request and interpret the archive
Send up to 100 exact market_hash_name values and a date range to POST /v1/archive/csfloat. The effective end is exclusive. Successful item results can be returned alongside per-item errors[].
Keep price and volume on the same row. When combining days, weighting each daily average by its sale count gives a mean over the represented aggregates. It does not produce a median or reveal any individual sale.
Use CSFloat listing price history when the question concerns active asks or bids. That OHLC series begins December 24, 2025, while this completed-sale archive begins in 2022.
Applicable endpoints
| Endpoint | Returns | Plans |
|---|---|---|
POST /v1/archive/csfloat |
Daily average completed-sale price and count | Scale, Enterprise |
POST /v1/prices/history |
Listing and bid OHLC | Scale, Enterprise |
GET /v1/prices/latest |
Current CSFloat ask and bid | All plans |
Archive limitations
- The archive contains daily aggregates, not transaction IDs or individual sale records.
- Float, seed, and stickers are not available as fields in each aggregate. They can move the daily average.
- Missing dates remain missing. Filling them creates sale evidence the API did not return.
- Variant coverage depends on archive rows for the requested item. A parent series cannot be assigned to a missing phase, and Case Hardened base sales cannot be assigned to tiers.
- Valid items without CSFloat archive data return
not_in_archive.
The archive endpoint reference lists the full response shape.