---
title: "Per-Exchange Open Interest"
method: GET
path: "/v1/oi/exchange"
tags: ["Futures Analytics"]
---

# Per-Exchange Open Interest

`GET /v1/oi/exchange`

## Request

- Base URL: `https://api.blocklens.co` (the document declares no server; this is the origin it was published from)
- URL: `https://api.blocklens.co/v1/oi/exchange`
- Auth: HTTP bearer

Returns daily per-exchange open interest from daily_oi_exchange.

- **close_oi_usd**: Close-of-day open interest in USD for the exchange

Requires Pro tier (grade 1).

## Query parameters

- `exchange` string, required: Exchange ID (e.g. binance, bybit)
- `symbol` string: Asset symbol
- `network` string, nullable: Alias for symbol
- `from_date` string, date, nullable
- `to_date` string, date, nullable
- `limit` integer

## Response `200`

Successful Response

- ApiResponse: Standard API response model
  - `success` boolean, required
  - `data` unknown, required
  - `message` string, nullable
  - `count` integer, nullable
  - `timestamp` string, date-time

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/blocklens/apis/blocklens-on-chain-api.md) · [All operations](https://skmtc.dev/blocklens/apis/blocklens-on-chain-api/llms.txt) · [OpenAPI document](https://skmtc.dev/blocklens/apis/blocklens-on-chain-api/revisions/dacc02ae0f9a?raw)