---
title: "Get one semantic live market observation's validators without a body"
method: HEAD
path: "/api/market-observation/v1/{symbol}.jsonld"
tags: ["Market data"]
---

# Get one semantic live market observation's validators without a body

`HEAD /api/market-observation/v1/{symbol}.jsonld`

## Request

- Base URL: `https://btcwar.net`
- URL: `https://btcwar.net/api/market-observation/v1/{symbol}.jsonld`
- Auth: none required

Public, read-only endpoint; no API key or authentication is required. Returns the same status and metadata headers as GET without the response body.

## Path parameters

- `symbol` 'BTCUSDT' | 'ETHUSDT' | 'BNBUSDT' | 'SOLUSDT' | 'XRPUSDT' | 'TRXUSDT' | 'DOGEUSDT' | 'ZECUSDT' | 'ADAUSDT', required

## Headers

- `If-None-Match` string
- `If-Modified-Since` string, http-date

## Response `200`

Semantic observation metadata headers without a body.

## Other responses

- `304`: The current semantic observation matches the supplied validator.
- `404`: The requested market symbol is not supported.
- `405`: Only GET and HEAD are supported.
- `502`: A complete and trustworthy semantic source observation is temporarily unavailable.

---

[API](https://skmtc.dev/btcwar/apis/btc-war-live-market-data-api.md) - [All operations](https://skmtc.dev/btcwar/apis/btc-war-live-market-data-api/llms.txt) - [OpenAPI document](https://skmtc.dev/btcwar/apis/btc-war-live-market-data-api/revisions/c893fd0a8e73?raw)