# Carbon & Cashmere Factor Analytics API – BTC

> Carbon & Cashmere Factor Analytics API – BTC is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns multi-factor crypto market intelligence for BTC including carry, crowding, momentum, volatility regimes, composite score, and directional label

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/factor-analytics/BTC
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carbon-cashmere-factor-analytics-api-btc-51d8c44f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9eTViWz7-M6fdAKEICazT

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 carbon-cashmere-factor-analytics-api-btc-51d8c44f
```

Example prompt: Pull the Carbon & Cashmere factor analytics for BTC — I want to see the carry, crowding, momentum, and volatility regimes plus the composite score and directional label.

## When to prefer this

Use this endpoint when you need a structured, multi-factor quantitative view of BTC market conditions — combining carry, momentum, crowding, and volatility into a single composite signal — rather than raw price data or simple moving averages. Ideal for agents making systematic trading decisions or risk assessments based on regime classification.

## Known failure modes

- Invalid or unsupported symbol returns error response
- Payment failure (x402) if USDC balance is insufficient
- Network timeout if upstream market data is unavailable
- Rate limiting if too many requests are made in a short window

## How this service works

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

## Output

A JSON object containing a metadata disclaimer, the BTC symbol, four factor sub-scores each with a numeric value and regime classification (e.g. 'long_paying', 'crowded_long', 'positive', 'compressed'), a composite directional label (e.g. 'bullish_bias_low_vol'), and a composite score between 0 and 1.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "_meta": {
   "disclaimer": "Informational research data only — not investment advice."
  },
  "symbol": "BTC",
  "factors": {
   "carry": {
    "value": 12.4,
    "regime": "long_paying"
   },
   "crowding": {
    "value": 0.42,
    "regime": "crowded_long"
   },
   "momentum": {
    "value": 0.087,
    "regime": "positive"
   },
   "volatility": {
    "value": 0.48,
    "regime": "compressed",
    "percentile_90d": 0.21
   }
  },
  "composite_label": "bullish_bias_low_vol",
  "composite_score": 0.62
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-factor-analytics-api-btc-51d8c44f/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)