---
title: "COMEX volume and open interest"
method: GET
path: "/v1/comex/volume-oi"
tags: ["Regional"]
---

# COMEX volume and open interest

`GET /v1/comex/volume-oi`

## Request

- Base URL: `https://api.metalcharts.org`
- URL: `https://api.metalcharts.org/v1/comex/volume-oi`
- Auth: none declared

COMEX volume and open interest for a metal symbol. Requires the Pro plan or higher. Every response carries asOf, ageDays and a stale flag, so you can tell a current series from one that has stopped updating without inspecting the array.

## Query parameters

- `symbol` string, required: Required. Metal symbol: XAU, XAG, HG, XPT, XPD, ALI, ZN or PB (availability varies by endpoint).

## Response `200`

Success.

- object
  - `success` boolean, required
  - `symbol` string
  - `data` object, required
    - `date` string, date
    - `openInterest` number
    - `volume` number

## Other responses

- `400`: Invalid parameter.

---

[API](https://skmtc.dev/metalcharts/apis/metalcharts-api.md) · [All operations](https://skmtc.dev/metalcharts/apis/metalcharts-api/llms.txt) · [OpenAPI document](https://skmtc.dev/metalcharts/apis/metalcharts-api/revisions/53d6a0af0479?raw)