# How to Get Gamma Doppler Price History

> `POST /v1/prices/history` returns Gamma Doppler ask and available bid OHLC separately for Phase 1-4 and Emerald. General history starts December 24, 2025; CSFloat bids start July 18, 2026.

The parent Gamma Doppler series is not phase history. A valid phase comparison keeps each `version` and marketplace source separate across time.

## Variant OHLC structure

The requested base item can return `variants` entries for `p1`, `p2`, `p3`, `p4`, and `emerald`. Every variant has a chronological `data[]` array of UTC buckets.

A source object can include open, high, low, and close values for asks and, where supported, bids. `ask_volume` and `bid_volume` are last-observed order counts when that source supports them. `sample_count` counts observations. `open_time` and `close_time` show the actual observation window inside the fixed `bucket` boundary.

Skinport is ask-only. CSFloat and C5Game have no `bid_volume`. Variant source objects appear only where data exists.

## Request one or more phase histories

Send up to 100 base `market_hash_name` values to `POST /v1/prices/history`. Choose sources and an interval, then select the desired `version` under `variants`.

Use `5m` for up to 14 days, `30m` for 90 days, `1h` for 365 days, or `1d` for longer periods. Compare phase closes only across matching interval boundaries and source definitions.

For current phase quotes, use `GET /v1/prices/latest`. CSFloat also provides daily phase completed-sale aggregates from 2022 where archive coverage exists.

## Applicable endpoints

| Endpoint | Returns | Plans |
| --- | --- | --- |
| `POST /v1/prices/history` | Per-source Gamma Doppler OHLC | Scale, Enterprise |
| `GET /v1/prices/latest` | Current Gamma Doppler quotes | All plans |
| `POST /v1/archive/csfloat` | Daily phase completed-sale data where present | Scale, Enterprise |

## Historical interpretation

- `close_ask` is the last observed listing floor, not a completed-sale price.
- `sample_count` is observation coverage. It is not purchase volume.
- Emerald can be much thinner than Phase 1-4. Missing buckets should remain gaps.
- Steam has no phase-specific Community Market rows, so its parent history cannot be assigned to variants.
- General OHLC begins December 24, 2025, while CSFloat bid fields begin July 18, 2026. No request interval can extend either boundary earlier.

The [history API reference](/docs/api-reference/prices-history) documents source-specific fields and partial success.