# Carbon & Cashmere Bittensor Subnet Data API

> Carbon & Cashmere Bittensor Subnet Data API 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 real-time neuron list, stake summary, and subnet-level metrics for a specified Bittensor subnet (netuid)

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/bittensor/%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-subnet-data-api-166eaff7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r74ss5AcKC-iHtyHVyicN

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-subnet-data-api-166eaff7
```

Example prompt: Pull the latest Bittensor subnet data for netuid 1 — I want to see the neuron count, total stake, and the full neuron list right now.

## When to prefer this

Use this endpoint when you need current snapshot data — neuron list, stake totals, and counts — for a specific Bittensor subnet identified by its netuid. Prefer this over the top-miners endpoint when you want full subnet-level aggregates rather than ranked individual miner performance, and over the coin-network-stats endpoint when your focus is specifically Bittensor subnet topology rather than broader TAO network metrics.

## Known failure modes

- Invalid or non-existent netuid returns an error or empty neuron list
- Payment not sent / x402 payment required response (402) if USDC microtransaction is missing
- Network timeout if Bittensor node is slow to respond
- Rate limiting if too many requests are sent in quick succession

## How this service works

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

## Output

A JSON object with a timestamp, an array of neurons active on the specified subnet, and a summary containing total_stake and neuron_count for that subnet.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ts": "2026-03-28T12:00:00Z",
  "neurons": [],
  "summary": {
   "total_stake": 50000,
   "neuron_count": 256
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-bittensor-subnet-data-api-166eaff7/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)