# Carbon & Cashmere Signal API – SOL Chart/Signal

> Carbon & Cashmere Signal API – SOL Chart/Signal is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-14).

Returns real-time price signals, trend indicators, and market scoring for Solana (SOL) from the Carbon & Cashmere crypto intelligence platform.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/chart/SOL
- Price: $0.02/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-chart-signal-bcc02285
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QD43FM6umQvDTswOiZxB9

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-chart-signal-bcc02285
```

Example prompt: What's the current market signal and trend strength for SOL on the 4-hour timeframe — give me the overall bias score and support distance from Carbon & Cashmere?

## When to prefer this

Use this endpoint when you need a quick, scored market intelligence signal for SOL specifically, including overall bias, trend strength, and support distance in a single low-latency call. Prefer this over the full bundle endpoint when you only need chart/signal features for SOL and want to minimize cost per call.

## Known failure modes

- Invalid or unsupported coin symbol returns an error or empty result
- Timeframe parameter not recognized returns a validation error
- Service unavailable during market downtime or maintenance
- Payment not processed (x402) results in 402 Payment Required response
- Rate limit exceeded returns a 429 error

## How this service works

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

## Output

A JSON object containing the coin identifier (SOL), a set of signal features including overall bias score (cv_overall_bias), trend strength (cv_trend_strength), and support distance (cv_support_distance), along with the timeframe used for analysis.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "BTC",
  "features": {
   "cv_overall_bias": 0.3,
   "cv_trend_strength": 0.6,
   "cv_support_distance": -0.02
  },
  "timeframe": "4h"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-signal-api-sol-chart-signal-bcc02285/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)