---
title: "Contracts Chain"
method: GET
path: "/v1/contracts/chain/{ticker}"
tags: ["contracts"]
---

# Contracts Chain

`GET /v1/contracts/chain/{ticker}`

## Request

- Base URL: `https://api.optionwhales.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.optionwhales.io/v1/contracts/chain/{ticker}`
- Auth: none declared

Option chain for an underlying (from the last OI snapshot; OI>0) (Pro+).

## Path parameters

- `ticker` string, required

## Query parameters

- `date` string, nullable: Session YYYY-MM-DD; default latest
- `expiry` string, nullable: Filter to one expiry YYYY-MM-DD
- `type` string, nullable: call | put
- `min_oi` integer
- `limit` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/optionwhales/apis/optionwhales-pro-api.md) · [All operations](https://skmtc.dev/optionwhales/apis/optionwhales-pro-api/llms.txt) · [OpenAPI document](https://skmtc.dev/optionwhales/apis/optionwhales-pro-api/revisions/e76bc0d3a770?raw)