---
title: "Paid: Derivatives Markets"
method: GET
path: "/api/x402/market-derivatives"
---

# Paid: Derivatives Markets

`GET /api/x402/market-derivatives`

## Request

- Base URL: `https://three.ws`
- URL: `https://three.ws/api/x402/market-derivatives`
- Auth: none required

Derivatives market data for agents — pay $0.001 USDC per call. Default mode returns the top 100 perpetual futures contracts by 24h volume with price, 24h change, funding rate, and open interest. Pass ?view=exchanges for the derivatives-venue leaderboard ranked by BTC open interest (perp/futures pair counts included). Same data behind three.ws/derivatives.

## Query parameters

- `view` string

## Response `200`

three.ws Market Data result JSON

## Other responses

- `400`: Validation error
- `402`: Payment Required (x402)

---

[API](https://skmtc.dev/three/apis/three-ws-api.md) · [All operations](https://skmtc.dev/three/apis/three-ws-api/llms.txt) · [OpenAPI document](https://skmtc.dev/three/apis/three-ws-api/revisions/dbc5e3a81b79?raw)