# Carbon & Cashmere Signal API – SOL Market Intelligence

> Carbon & Cashmere Signal API – SOL Market Intelligence 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 real-time crypto market intelligence for Solana (SOL), including price, ML ensemble signals, HMM market regime classification, and directional confidence scores.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/signal/SOL
- 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/carbon-cashmere-signal-api-sol-market-intelligence-db8834a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rHSxj2UdlCf7GUuavyfnN

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-sol-market-intelligence-db8834a3
```

Example prompt: What's the current Carbon & Cashmere market signal for SOL — is it bullish or bearish, and how confident is the ML ensemble right now?

## When to prefer this

Choose this endpoint when you need structured, quantitative trading signals specifically for SOL with ML ensemble confidence and market regime classification, rather than raw price data alone. Prefer this over generic price APIs when directional confidence and regime context (bullish/bearish, distribution/accumulation) are needed for decision-making.

## Known failure modes

- Unsupported coin ticker returns 404 or empty response
- Stale or delayed signal data if upstream feeds lag
- Authentication or payment failure (x402) if USDC balance is insufficient
- Rate limiting if too many calls are made in a short window
- Malformed JSON response if internal model pipeline errors

## How this service works

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

## Output

A JSON object containing the coin identifier (SOL), the HMM-derived market regime (e.g. 'distribution', 'accumulation'), and an array of ML agent predictions each with direction (bullish/bearish), confidence score (0–1), and historical hit rate.

## 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/carbon-cashmere-signal-api-sol-market-intelligence-db8834a3/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)