# BTC Dominance

> BTC Dominance is a paid API for AI agents from earn-pulse.haiqingm58.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns the current Bitcoin and Ethereum market-cap dominance percentages with no parameters required.

## Facts

- Endpoint: GET https://earn-pulse.haiqingm58.workers.dev/dom
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/btc-dominance-574ad943
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pRvryqN_INfL7dz8du6sk

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 btc-dominance-574ad943
```

Example prompt: What's Bitcoin's current market-cap dominance, and how does Ethereum's dominance compare right now?

## When to prefer this

Choose this endpoint when you need a quick, no-parameter snapshot of BTC and ETH market-cap dominance for trading decisions, dashboards, or macro regime classification. Prefer it over manual calculation from raw market-cap data when you need a fast, pre-computed dominance figure for both BTC and ETH in a single call.

## Known failure modes

- Upstream data source unavailable — may return stale or error response
- Network timeout on the Cloudflare Worker edge node
- Payment authorization failure via x402 protocol results in 402 status with no data returned
- Rate limiting or quota exhaustion returns error status

## How this service works

BTC and ETH market-cap dominance. No parameters.

## Output

Returns the current BTC and ETH market-cap dominance values, expressed as percentages of the total cryptocurrency market capitalization, with no additional query parameters required.

## 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": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/btc-dominance-574ad943/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from earn-pulse.haiqingm58.workers.dev](https://www.zero.xyz/host/earn-pulse.haiqingm58.workers.dev/llms.txt)