# Carbon & Cashmere Signal API – ETH Decision Endpoint

> Carbon & Cashmere Signal API – ETH Decision Endpoint is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns real-time Ethereum price, ML-driven directional signal, market regime classification, funding rate, and conviction score for trading decisions.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/decision/ETH
- Price: $0.1/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-signal-api-eth-decision-endpoint-44cf72b7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_utIMWTUsH_mfncnLhtKmQ

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-signal-api-eth-decision-endpoint-44cf72b7
```

Example prompt: What's the current Carbon & Cashmere signal for ETH — give me the price, conviction score, market regime, and whether I should be long or short right now?

## When to prefer this

Choose this endpoint when you need a single, synthesized trading decision for ETH that combines price data, regime classification, ML signal probability, and conviction scoring in one call — rather than fetching raw price data alone or assembling signals from multiple sources. Ideal for agents making automated trading decisions or alerting users to high-conviction setups.

## Known failure modes

- Invalid coin symbol in path returns 404 or empty result
- Payment not attached or insufficient USDC returns 402 Payment Required
- Upstream price feed delay may cause stale price data
- ML model confidence low during low-volatility or choppy regimes
- Rate limiting if too many calls are made in rapid succession

## How this service works

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

## Output

A JSON object containing: coin ticker, current USD price and 24h change, market regime state (e.g. markup/markdown), futures funding rate, ML ensemble directional signal with probability (0–1), conviction score out of 100 with direction (long/short), and a human-readable recommendation string summarizing the trade setup.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "BTC",
  "price": {
   "price_usd": 84500,
   "change_24h": -1.2
  },
  "regime": {
   "state": "markup"
  },
  "funding": {
   "rate": 0.0001
  },
  "ml_signal": {
   "direction": "up",
   "probability": 0.62
  },
  "conviction": {
   "score": 62,
   "direction": "long"
  },
  "recommendation": "Price $84,500. Conviction 62/100 (long). Regime: markup."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-signal-api-eth-decision-endpoint-44cf72b7/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)