# Bittensor Subnet List with Live Snapshot Metadata

> Bittensor Subnet List with Live Snapshot Metadata is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a live snapshot of all indexed Bittensor subnets with key metrics including neuron counts, stake, validator counts, incentive distribution (Gini, top-5 share), and alpha token pricing in TAO and USD.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/bittensor/subnets
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-aef8b99e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j7R4JXcH9WPh3Pjs4M17i

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-aef8b99e
```

Example prompt: Pull the latest snapshot of all Bittensor subnets — I want to see which ones have the most concentrated incentive distribution (Gini score), how many active neurons each has, and what the alpha token price is in USD right now.

## When to prefer this

Use this endpoint when you need a network-wide overview of all indexed Bittensor subnets in a single call — particularly for comparing incentive concentration (Gini, top-5 share), validator counts, stake distribution, and alpha token pricing across subnets. Prefer this over per-subnet metagraph endpoints when you need a broad scan rather than deep per-neuron detail for a specific subnet.

## Known failure modes

- Subnet not indexed — only tracked subnets are returned; newly registered or unmonitored subnets will be absent
- Stale snapshot — if the Subtensor lite node falls behind, timestamps may lag real chain time
- Empty response — if no subnets are currently indexed or the indexer is rebuilding
- HTTP 402 — missing or insufficient x402 payment header for $0.02 USDC per call
- HTTP 500 — upstream node connectivity issue with the Subtensor lite node

## How this service works

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

## Output

A JSON array of indexed Bittensor subnets, each with: netuid, snapshot timestamp, n_neurons, n_active, n_validators, total_stake, gini_incentive, top5_incentive_share, alpha_price_tao, alpha_price_usd, total_incentive. Also includes network-wide subnet_count and current block number. Note: only subnets tracked by this API are returned; not all on-chain subnets are indexed.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "subnets": [
   {
    "netuid": 3,
    "n_active": 128,
    "gini_incentive": 0.63,
    "alpha_price_usd": 2.35
   }
  ],
  "tracked": 10,
  "current_block": 7995930,
  "network_wide_subnet_count": 129
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-aef8b99e/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)