# Bittensor Subnet Alpha Token Price History

> Bittensor Subnet Alpha Token Price History is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-11-02).

Returns historical price trajectory, pool liquidity, and reserve metrics for a Bittensor subnet's alpha token via the Taostats v1 Subnet Pools History API.

## Facts

- Endpoint: GET https://api.chainmarket-api.workers.dev/api/crypto/tao-alpha-price-history?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bittensor-subnet-alpha-token-price-history-39f5f374
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A-NIEee-1vjiyuCVmDIpx

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 bittensor-subnet-alpha-token-price-history-39f5f374
```

Example prompt: Can you pull the last 50 historical alpha token price and pool liquidity records for Bittensor subnet 18?

## When to prefer this

Use this endpoint when you need historical alpha token price and pool liquidity data for a specific Bittensor subnet identified by netuid. Prefer this over staked alpha or metagraph endpoints when the primary concern is price trajectory and reserve metrics rather than staking flows or neuron-level data.

## Known failure modes

- Missing or invalid TAOSTATS_API_KEY returns authentication error
- Invalid or non-existent netuid returns empty results or 404
- limit value outside 1-100 range returns validation error
- Taostats upstream API downtime causes 5xx errors
- Rate limiting from upstream Taostats API

## How this service works

Historical price trajectory, pool liquidity, and reserve metrics of a subnet's alpha token via Taostats v1 Subnet Pools History API. Requires TAOSTATS_API_KEY.

## Output

Returns an ordered list of historical pool snapshots for the specified subnet, including alpha token price, pool liquidity depth, and reserve metrics at each recorded interval, up to the requested limit (max 100 records).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "netuid"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "default": 50,
       "maximum": 100,
       "minimum": 1,
       "description": "Maximum history records"
      },
      "netuid": {
       "type": "integer",
       "minimum": 0,
       "description": "Subnet network UID"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bittensor-subnet-alpha-token-price-history-39f5f374/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chainmarket-api.workers.dev](https://www.zero.xyz/host/api.chainmarket-api.workers.dev/llms.txt)