# Carbon Cashmere Crypto ML Trading Signal

> Carbon Cashmere Crypto ML Trading Signal is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Returns an AI-powered directional trading signal (bullish/bearish) for a specified cryptocurrency, generated by a 5-model ML ensemble including XGBoost, LightGBM, LSTM, Adaptive Random Forest, and MetaLearner, with confidence scores and per-model probabilities.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/signal/BTC
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-9b1ae4ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_x8bL1pv0oQdQK9QnkT_RX

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-9b1ae4ec
```

Example prompt: What's the current ML ensemble trading signal for BTC — is it bullish or bearish, and how confident is the model?

## When to prefer this

Use this endpoint when you need a ready-made ML ensemble directional signal for supported crypto assets (BTC, ETH, SOL, TAO, KAS, XLM, QUBIC) without running your own models. Prefer this over raw technical indicators when you want a single consensus prediction with confidence metrics and per-model breakdown already computed. Ideal for algorithmic trading agents that need a quick buy/sell signal with probabilistic backing rather than raw OHLCV data.

## Known failure modes

- Unsupported coin symbol in path returns 404 or error
- x402 payment not included or insufficient returns 402 Payment Required
- Ensemble gated=true means the model withheld a signal due to low confidence
- Stale data if updated_at is older than expected refresh interval
- Network timeout if the ML inference pipeline is slow

## How this service works

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

## Output

Returns JSON with: coin symbol, market regime (e.g. high_volatility/bullish/bearish), ML signal object containing direction (bullish/bearish), probability (0-1), confidence score, ensemble_used flag, gated flag, and sub-model probabilities for XGBoost, LightGBM, and online_prob. Also includes a predictions array from multiple agents (ml_ensemble, scanner_agent, analyst_agent) each with their own direction, confidence, hit_rate, and result. Includes updated_at timestamp and x402_price.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "BTC",
  "regime": "distribution",
  "predictions": [
   {
    "agent": "ml_ensemble",
    "hit_rate": 0.65,
    "direction": "bullish",
    "confidence": 0.72
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-9b1ae4ec/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)