# Carbon Cashmere ML Directional Signal — Single Coin

> Carbon Cashmere ML Directional Signal — Single Coin is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status down (last checked 2026-09-14).

Returns an ML ensemble directional probability (up/down), confidence score, and per-model agreement for a specified cryptocurrency using a 5-model ensemble (XGBoost, LightGBM, LSTM, Adaptive Random Forest, MetaLearner).

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/signal/:coin
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-6a9869e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xzdAc94jK043VrcpfRPzf

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-6a9869e2
```

Example prompt: What's the current ML ensemble directional signal and confidence score for ETH — I want to see the per-model agreement from the XGBoost, LightGBM, LSTM, and MetaLearner models.

## When to prefer this

Choose this endpoint when you need a per-coin ML ensemble directional probability with full model-level breakdown for one of the 7 supported assets. Prefer this over the broader signal endpoint when you want lightweight, focused quantitative research data for a single coin without additional technical indicator metadata.

## Known failure modes

- Unsupported coin symbol returns an error — only BTC, ETH, SOL, TAO, KAS, XLM, QUBIC are supported
- Missing or invalid x402 payment header results in 402 Payment Required
- Stale or unavailable model inference may return degraded confidence or error
- Invalid coin path parameter returns 400 or 404

## How this service works

ML-derived directional probability from 5-model ensemble — XGBoost, LightGBM, LSTM neural network, Adaptive Random Forest, and MetaLearner. Returns directional probability, confidence, and per-model agreement for BTC, ETH, SOL, TAO, KAS, XLM, QUBIC. Quantitative research data for AI agents and analytics — informational purposes only, not investment advice.

## Output

A JSON object containing the directional probability (e.g. probability of upward move), overall confidence, the predicted direction, and per-model agreement breakdown across all 5 models (XGBoost, LightGBM, LSTM, Adaptive Random Forest, MetaLearner) for the requested coin.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-6a9869e2/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)