---
title: "Changes to GET /v1/options/chain/{underlying}/"
method: GET
path: "/v1/options/chain/{underlying}/"
---

# Changes to GET /v1/options/chain/{underlying}/

`GET /v1/options/chain/{underlying}/`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 17 revisions.

- **2026-10-02** `f1572f362d09`: 1 info
- **2026-09-15** `9c18fbb1f58e`: 1 info

## Changes

- **2026-10-02** `f1572f362d09`: 1 info
  - for the `query` request parameter `dte`, the type was generalized from `integer` to `string`
- **2026-09-15** `9c18fbb1f58e`: 1 info
  - the endpoint scheme security `JWT Authentication` was added to the API

---

[Operation](https://skmtc.dev/marketdata/apis/market-data-api/docs/v1/options/chain/:underlying/get.md) - [API](https://skmtc.dev/marketdata/apis/market-data-api.md) - [Page](https://skmtc.dev/marketdata/apis/market-data-api/changes/v1/options/chain/:underlying/get)