# Carbon & Cashmere Bittensor Alpha Token Price History

> Carbon & Cashmere Bittensor Alpha Token Price History is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns historical price series for a Bittensor subnet's alpha token, denominated in both TAO and USD, over a 7-day rolling window.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/%7Bnetuid%7D
- Price: $0.02/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-bittensor-alpha-token-price-history-4f63de1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-zJrc-7XOzgaCWTuCEGoT

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-bittensor-alpha-token-price-history-4f63de1b
```

Example prompt: Can you pull the 7-day alpha token price history for Bittensor subnet 1 — I want to see the prices in both TAO and USD over time?

## When to prefer this

Use this endpoint when you need granular historical alpha token price data for a specific Bittensor subnet, especially when you need both TAO-denominated and USD-denominated price series at sub-hourly resolution over a 7-day window. Prefer this over generic crypto price APIs when working specifically with Bittensor subnet alpha tokens.

## Known failure modes

- Invalid or non-existent netuid returns an error or empty series
- Payment not fulfilled results in HTTP 402 response
- Rate limiting or quota exceeded may return HTTP 429
- Network timeout if the backend data source is unavailable
- Malformed netuid path parameter causes HTTP 400

## How this service works

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

## Output

A JSON object containing the subnet's netuid, a time-series array of alpha token prices with timestamps in both TAO and USD denominations, the window label ('7d'), and the number of samples (up to 1008 data points).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "netuid": 1,
  "series": [
   {
    "ts": "...",
    "alpha_tao": 0.0028,
    "alpha_usd": 0.74
   }
  ],
  "window": "7d",
  "samples": 1008
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-bittensor-alpha-token-price-history-4f63de1b/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)