---
title: "Buy a timestamped EU market brief"
method: POST
path: "/v3/market-brief"
---

# Buy a timestamped EU market brief

`POST /v3/market-brief`

## Request

- Base URL: `https://energy.halowerk.com`
- URL: `https://energy.halowerk.com/v3/market-brief`
- Auth: none declared

Returns licensed ENTSO-E and SMARD spot-market context for compute, DePIN, battery and power-trading agents: published day-ahead prices, volatility, load, renewable share when available, the observed share of published negative-price hours, uncertainty, freshness and expiry.

## Request body

- object
  - `region` string, required
  - `horizon_hours` integer, required
  - `use_case` 'compute' | 'depin' | 'battery' | 'trading', required

## Response `200`

Result. Settled.

- object

## Other responses

- `400`: Request body does not match inputSchema. Nothing settled.
- `402`: Payment required — 0.05 USDC (per_request). The challenge carries accepts, description and inputSchema.
- `500`: Internal error. Nothing settled.

---

[API](https://skmtc.dev/halowerk/apis/halowerk-energy.md) · [All operations](https://skmtc.dev/halowerk/apis/halowerk-energy/llms.txt) · [OpenAPI document](https://skmtc.dev/halowerk/apis/halowerk-energy/revisions/59458d8c787e?raw)