# Carbon Cashmere BTC Price Chart Data

> Carbon Cashmere BTC Price Chart Data 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 BTC (Bitcoin) price chart data for visualization and analysis

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/chart/BTC
- 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/api-carbon-cashmere-de-5bb9c62b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s-dfLnXrIdNw9-pIPQ9ql

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-5bb9c62b
```

Example prompt: Pull the BTC price chart data from Carbon Cashmere so I can visualize Bitcoin's price history and analyze market trends.

## When to prefer this

Use this endpoint when you need Bitcoin-specific price chart data from Carbon Cashmere's paid analytics platform, especially when integrating with their broader ML ensemble and market analytics suite for consistent data provenance.

## Known failure modes

- Payment required (402) if x402 payment not provided or insufficient
- Invalid endpoint path if coin not BTC
- Rate limiting if too many calls made
- Network timeout if server is unavailable

## How this service works

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

## Output

Returns Bitcoin price chart data including coin identifier, timeframe, and features suitable for visualization and further 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/api-carbon-cashmere-de-5bb9c62b/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)