> For the complete documentation index, see [llms.txt](https://docs.kaiko.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaiko.com/kaiko-indices/customized-indices/compute-indices.md). # Compute indices GPU compute rental price indices, in USD per GPU-hour. ## What is this endpoint for? Get a live feed or historical values for any Kaiko Compute Index. Compute Indices measure the market price of GPU compute rental, expressed in USD per GPU-hour. Values are calculated from provider offer data collected from compute marketplaces (e.g. Squaretower for NVIDIA H100), using a volume-weighted methodology (VWM or VWAP) with time-weighted aggregation (TWAP) over a rolling calculation window. Indices are published as a real-time feed and as scheduled fixings. ## Endpoints {% tabs %} {% tab title="gRPC Stream" %} ```url gateway.equ.kaiko.io:443 kaiko.equities.EquitiesService/StreamComputeIndex ``` {% endtab %} {% tab title="gRPC Historical" %} ```url gateway.equ.kaiko.io:443 kaiko.equities.EquitiesService/GetComputeIndex ``` {% endtab %} {% endtabs %} {% hint style="info" %} **Full history available** Unlike the Reference Rates replay endpoints, `GetComputeIndex` is not limited to a rolling replay window: the complete publication history can be requested. Omit `start_time` and `end_time` to receive the last published value. Each request returns **at most 100 datapoints**. For longer ranges, page by advancing `start_time` past the `tsEvent` of the last datapoint received. {% endhint %} ## Request parameters ### Subscribe | Parameter | Description | Examples | | ------------- | ---------------------------------------- | ---------------------- | | `index_codes` | The list of Kaiko Compute Index tickers. | `["KK_CMP_H100ST_RT"]` | {% hint style="info" %} **Requesting multiple tickers at the same time** To configure multiple tickers in the same call, provide the `index_codes` as a comma-separated list, e.g. `["KK_CMP_H100ST_RT", "KK_CMP_..."]`. {% endhint %} ### Historical | Parameter | Description | Examples | | ------------ | ---------------------------------------------------------------------------- | ---------------------- | | `index_code` | The Kaiko Compute Index ticker. | `KK_CMP_H100ST_RT` | | `start_time` | Optional. Start of the range in ISO 8601. Omit for the last published value. | `2026-08-17T00:00:00Z` | | `end_time` | Optional. End of the range in ISO 8601. | `2026-08-17T12:00:00Z` | ## Response fields | Field | Description | | ------------------ | -------------------------------------------------------------------------------------------------- | | `indexCode` | The ticker identifying the index. | | `commodity` | The type of publication. Either real-time (`SIC_REAL_TIME`) or fixings (e.g. `SIC_HOURLY_FIXING`). | | `interval` | The time period in which observation data are considered for the calculation of the index. | | `.startTime` | The start time of the data interval. | | `.endTime` | The end time of the data interval. | | `quote` | The quote asset used for the index denomination (`usd`). | | `bases` | The list of base assets included in the index and their weight, e.g. `h100_st`. | | `exchanges` | The data sources involved in the computation, e.g. `sqrt` (Squaretower). | | `price` | The value of the index in the quote denomination (USD per GPU-hour). | | `methodology` | The calculation methodology, e.g. `vwm_twap`, `vwap_twap`. | | `details` | The different partitions included in the price computation. | | `.partition` | The sequential number of the partition in the calculation window (0 = oldest). | | `.price` | The volume-weighted price of the partition. | | `.volume` | The total observation weight in the partition. | | `.count` | The number of observations in the partition. | | `.underlyingTrade` | The representative observation details of the partition. | | `.datetime` | The datetime of the observation. | | `.exchange` | The provider code. | | `.volume` | The weight of the observation. | | `.id` | The ID of the observation. | | `fallbackInfo` | An object containing fallback information. | | `.fallbackUsed` | `true` when the value is forward-filled (no new observations in the window). | | `tsEvent` | The exact time of price publication. | | `sequenceId` | A unique identifier for the publication. | | `lastIngestTime` | The timestamp of the last source observation ingested. | {% hint style="info" %} **Default values are omitted from the JSON output** Standard gRPC JSON behavior: fields at their default value are omitted — a missing `partition` means partition `0`, `fallbackInfo: {}` means `fallbackUsed: false`, and an empty `sequenceId` is not shown. Treat absent fields as defaults, not as errors. {% endhint %} {% hint style="info" %} **Forward-fill** When a calculation window contains no new observations, the index re-publishes the last computed value with `fallbackUsed: true`. Consumers can use this flag to detect stale values. {% endhint %} {% hint style="info" %} **Weights as volume** Observation `volume` reflects provider weighting supplied by the data source, not traded quantity. `underlyingTrade` exposes one representative observation per partition for auditability; the full underlying dataset is not redistributed. {% endhint %} ## Request examples {% tabs %} {% tab title="cURL Stream" %} **cURL requests are intended for testing purposes only.** {% code overflow="wrap" %} ```url grpcurl \ -H "Authorization: Bearer $KAIKO_API_KEY" \ -d '{ "index_codes": ["KK_CMP_H100ST_RT"] }' \ gateway.equ.kaiko.io:443 \ kaiko.equities.EquitiesService/StreamComputeIndex ``` {% endcode %} {% endtab %} {% tab title="cURL Historical" %} **cURL requests are intended for testing purposes only.** {% code overflow="wrap" %} ```url grpcurl \ -H "Authorization: Bearer $KAIKO_API_KEY" \ -d '{ "index_code": "KK_CMP_H100ST_RT", "start_time": "2026-08-17T00:00:00Z", "end_time": "2026-08-17T12:00:00Z" }' \ gateway.equ.kaiko.io:443 \ kaiko.equities.EquitiesService/GetComputeIndex ``` {% endcode %} {% endtab %} {% endtabs %} `GetComputeIndex` returns `{"datapoints": [ ... ]}`; the stream pushes one datapoint per publication. ## Response Example Captured from the live production feed (note the omitted defaults: no `partition` on the single bucket, `fallbackInfo: {}`, no `sequenceId`): ```json { "indexCode": "KK_CMP_H100ST_RT", "commodity": "SIC_REAL_TIME", "interval": { "startTime": "2026-08-24T14:52:22Z", "endTime": "2026-08-24T15:52:22Z" }, "quote": "usd", "bases": [{ "asset": "h100_st", "weight": 1 }], "exchanges": ["sqrt"], "price": 2.81, "methodology": "vwm_twap", "details": [ { "price": 2.81, "volume": 7.500000000000008, "count": 116, "underlyingTrade": { "exchange": "p011", "volume": 0.025, "id": "6222904fb5c4382a", "datetime": "2026-08-24T15:00:00.121715Z" } } ], "fallbackInfo": {}, "tsEvent": "2026-08-24T15:52:22Z", "lastIngestTime": "2026-08-24T15:03:13.830312172Z" } ``` --- # Agent Instructions This documentation is published with GitBook. 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