# Carbon Cashmere Crypto Narrative Trends API

> Carbon Cashmere Crypto Narrative Trends API is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.01/call, status down (last checked 2026-10-10).

Returns trending crypto narratives extracted from 9,000+ news articles across 11 categories with sentiment scores, trending coins, top headlines, and momentum direction

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/narratives?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-484139d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b_wVEYXvLB8TW6Dc9rkoL

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 api-carbon-cashmere-de-484139d4
```

Example prompt: What are the trending crypto narratives from the last 24 hours — which categories are rising, what coins are being mentioned most, and what's the dominant narrative?

## When to prefer this

Choose this endpoint when you need narrative-level crypto intelligence derived from news — e.g., understanding which storylines (regulation, ETF, DeFi, AI) are gaining or fading momentum and which coins are associated with them. Prefer over raw price feeds or ML signal endpoints when the goal is qualitative theme detection, news-based alpha generation, or narrative-driven trading context.

## Known failure modes

- Invalid hours value (only 6, 12, 24, 48, 72 are accepted) returns 400 or validation error
- Payment not provided or invalid x402 payment header returns 402 Payment Required
- Service temporarily unavailable returns 503
- No narratives detected for the requested time window returns empty array
- Rate limit exceeded returns 429

## How this service works

Professional crypto market intelligence. Real-time prices, signals, and market scoring.

## Output

A JSON array of narrative objects across up to 11 categories (regulation, DeFi, AI, macro, hack, NFT, stablecoin, layer2, ETF, exchange, general), each with average sentiment score, list of trending coins, top headline, and momentum direction (rising/stable/fading), plus a dominant_narrative field and the period_hours used.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "narratives": [
   {
    "category": "regulation",
    "momentum": "rising",
    "article_count": 12,
    "avg_sentiment": 0.35,
    "trending_coins": [
     "BTC",
     "ETH"
    ]
   }
  ],
  "period_hours": 24,
  "dominant_narrative": "regulation"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-484139d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.carbon-cashmere.de](https://www.zero.xyz/host/api.carbon-cashmere.de/llms.txt)