# Crypto Market Brief (Composite)

> Crypto Market Brief (Composite) is a paid API for AI agents from srv1553682.hstgr.cloud, paid per call via x402, $0.00525/call, status unknown (last checked 2026-09-13).

Returns a single consolidated crypto market snapshot combining Fear & Greed index (current vs. week-ago), BTC and ETH spot prices, perpetual funding rates, and an AI-generated narrative summary — all in one call.

## Facts

- Endpoint: GET https://srv1553682.hstgr.cloud/route/market-brief
- Price: $0.00525/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-brief-composite-4c82be1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_elVivajyPWfD9N9EmA-Ot

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 crypto-market-brief-composite-4c82be1d
```

Example prompt: Give me a full crypto market brief right now — Fear & Greed index compared to last week, BTC and ETH spot prices, perpetual funding rates, and a quick AI-written summary of what it all means.

## When to prefer this

Choose this endpoint when you need a holistic crypto market snapshot in a single call and want to avoid orchestrating multiple data sources yourself. It is ideal for daily digest agents, trading pre-session checks, or dashboards that need sentiment, prices, derivatives data, and a human-readable narrative together. It is especially suited for x402 micropayment-enabled agents that need reliable, charged-only-on-success semantics.

## Known failure modes

- Upstream data source unavailable — partial or empty fields in response
- Payment not settled onchain — call rejected (never charged on failure)
- Rate limiting if called too frequently
- AI narrative generation timeout — narrative field may be null or absent
- Network timeout to hstgr.cloud host

## How this service works

Composite crypto market brief: Fear & Greed (now vs week ago), BTC/ETH spot, perp funding rates, plus an AI-written narrative — one call instead of four. Always-on, verified onchain settlement, never charged on failure.

## Output

A single JSON response containing: current Fear & Greed index value and classification, the index value from 7 days ago for comparison, BTC spot price, ETH spot price, perpetual futures funding rates, and an AI-written prose narrative summarizing market conditions — consolidating what would otherwise require four separate API calls.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-brief-composite-4c82be1d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from srv1553682.hstgr.cloud](https://www.zero.xyz/host/srv1553682.hstgr.cloud/llms.txt)