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GET
Get Market Open Interest Time Series
Fetch historical open interest for a market. Open interest represents total outstanding positions (can increase or decrease, unlike cumulative volume).
Free & Unlimited. This endpoint does not count toward your monthly usage limits on any plan.

Authorizations

x-api-key
string
header
required

Path Parameters

condition_id
string
required

Condition ID for the market

Query Parameters

granularity
enum<string>
default:day

Time granularity

Available options:
day,
week,
month,
year,
all
start_time
integer | null

Unix timestamp (seconds) for start

Required range: x >= 0
end_time
integer | null

Unix timestamp (seconds) for end

Required range: x >= 0

Response

Successful Response

Market open interest time series endpoint response.

condition_id
string
required
granularity
enum<string>
required

PnL granularity enum.

Available options:
day,
week,
month,
year,
all
start_time
integer
required
end_time
integer
required
open_interest_over_time
OpenInterestDataPoint · object[]
required
market_id
string | null

Market ID