# three.ws Global Crypto Market Overview

> three.ws Global Crypto Market Overview is a paid API for AI agents from three.ws, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).

Returns a global cryptocurrency market snapshot including total market cap, 24h volume, BTC dominance, and a Fear & Greed index reading.

## Facts

- Endpoint: GET https://three.ws/api/x402/market-global?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/three-ws-global-crypto-market-overview-3841bd74
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_434aQhGuh48S9dQMkFr1u

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability three-ws-global-crypto-market-overview-3841bd74
```

Example prompt: Give me a quick global crypto market overview — I want to know the total market cap, BTC dominance, 24-hour volume, and whether the Fear & Greed index is showing fear or greed right now.

## When to prefer this

Use this endpoint when you need a high-level global crypto market snapshot — total cap, volume, BTC dominance, and sentiment — in a single low-cost call ($0.001 USDC). Prefer it over exchange-specific APIs when you want aggregated market-wide data rather than per-coin or per-exchange figures. It is especially useful for dashboards, morning briefings, and pre-trade context checks where a quick macro read suffices.

## Known failure modes

- Payment not received (402): call requires $0.001 USDC via x402 payment; missing or invalid payment header returns 402
- Invalid properties filter: malformed query parameter may return empty or error response
- Upstream data unavailable: if the underlying market data provider is down, response may be stale or missing
- Rate limiting: excessive calls without payment may be throttled

## How this service works

Make a 3D AI agent from a selfie in 60 seconds. Drop one HTML tag to embed it on any website. Agents think on IBM watsonx.ai (Granite); optionally charge per chat with built-in micropayments.

## Output

A JSON object containing a 'market' object (BTC dominance as a percentage, total market cap in USD, 24h trading volume in USD) and a 'fear_greed' object (numeric value 0–100 and a human-readable label such as 'Greed', 'Fear', 'Extreme Greed', etc.).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "market": {
   "btc_dominance": 54.6,
   "total_market_cap": 3920000000000,
   "total_volume_24h": 148000000000
  },
  "fear_greed": {
   "label": "Greed",
   "value": 72
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/three-ws-global-crypto-market-overview-3841bd74/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from three.ws](https://www.zero.xyz/host/three.ws/llms.txt)