---
title: "Market open interest"
method: GET
path: "/timeseries/market-openinterest"
tags: ["Timeseries"]
---

# Market open interest

`GET /timeseries/market-openinterest`

Returns open interest for specified futures markets.<br/> Results are ordered by tuple `(market, time)`.<br/> To fetch the next page of results use `next_page_url` JSON response field. Keep in mind that spot markets are not supported by this endpoint.

## Query parameters

- `markets` string[], required
- `start_time` string
- `end_time` string
- `start_inclusive` boolean
- `end_inclusive` boolean
- `granularity` 'raw' | '1m' | '1h' | '1d'
- `timezone` string
- `page_size` integer
- `paging_from` 'start' | 'end', PagingFrom
- `limit_per_market` integer
- `pretty` boolean
- `format` 'json' | 'csv'
- `next_page_token` string

## Response `200`

Time series of market open interest.

- MarketOpenInterestResponse
  - `data` MarketOpenInterest[], required — Time series of market open interest.
    - `market` string, required — Unique name of the market.
    - `time` string, required — The time in ISO 8601 date-time format. Always with nanoseconds precision.
    - `contract_count` string, required — Number of contracts.
    - `value_usd` string, required — Contract value in USD.
    - `database_time` string, required — A time when we saved the data in the database. The time is in ISO 8601 date-time format. Always with nanoseconds precision.
    - `exchange_time` string — Time corresponding to open interest data point, according to the exchange. Can be NULL, if exchange doesn't support it.
  - `next_page_token` string — Token of the next page results for a given request.
  - `next_page_url` string — URL of the next page results for a given request.

## Other responses

- `400` — Market not found.
- `401` — Requested resource requires authorization.
- `403` — Requested resource is not available with supplied credentials.
- `414` — Provided URI is too long. It must not be greater than 10000 symbols.

---

[API](https://skmtc.net/coinmetrics/apis/coin-metrics-api-v4.md) · [All operations](https://skmtc.net/coinmetrics/apis/coin-metrics-api-v4/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/coinmetrics/coin-metrics-api-v4/revisions/774268c0a4fe/schema)