# Bittensor Top Validators by Global Weighted Stake

> Bittensor Top Validators by Global Weighted Stake is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-02).

Returns the top Bittensor network validators ranked by Taostats global weighted stake (root stake plus alpha stake in TAO), with subnet counts, dominance %, nominator counts, and commission rates.

## Facts

- Endpoint: GET https://api.chainmarket-api.workers.dev/api/crypto/tao-top-validators?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bittensor-top-validators-by-global-weighted-stake-38e87bdc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0Yh9hUvfp_5N8_bMyrtTg

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-top-validators-by-global-weighted-stake-38e87bdc
```

Example prompt: Show me the top 20 Bittensor validators ranked by global weighted stake from Taostats, including their dominance percentage, how many subnets they validate, nominator counts, and commission rates.

## When to prefer this

Use this endpoint when you need ranked validator data specifically from the Bittensor/TAO network with Taostats-sourced global weighted stake (combining root and alpha stake across all subnets). Prefer this over generic crypto staking APIs when the user explicitly needs Bittensor validator rankings, dominance analysis, or nominator/commission metrics for TAO delegation decisions.

## Known failure modes

- Missing or invalid TAOSTATS_API_KEY returns 401 unauthorized
- Page number out of range returns empty results or 404
- Limit exceeding maximum of 100 returns validation error
- Taostats upstream unavailability causes 502/503 gateway errors
- Network congestion on Cloudflare Workers may cause timeouts

## How this service works

Top Bittensor network validators in Taostats' rank order (global weighted stake: root stake plus alpha stake valued in TAO, across all subnets), with their validated subnet counts, dominance %, nominator counts, and commission take. Requires TAOSTATS_API_KEY.

## Output

A paginated list of top Bittensor validators sorted by global weighted stake (root stake + alpha stake valued in TAO across all subnets), each including their Taostats rank, total stake, dominance percentage, number of subnets validated, nominator count, and commission rate.

## 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",
     "properties": {
      "page": {
       "type": "integer",
       "default": 1,
       "minimum": 1,
       "description": "Page number"
      },
      "limit": {
       "type": "integer",
       "default": 20,
       "maximum": 100,
       "minimum": 1,
       "description": "Number of validators to return"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bittensor-top-validators-by-global-weighted-stake-38e87bdc/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)