# APEX Runner BTC Dominance Signal

> APEX Runner BTC Dominance Signal is a paid API for AI agents from apexrunner.ai, paid per call via x402, $0.105/call, status unknown (last checked 2026-09-15).

Returns the current Bitcoin market dominance percentage along with trend direction and an altcoin allocation bias signal.

## Facts

- Endpoint: GET https://apexrunner.ai/signals/btc-dominance
- Price: $0.105/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apex-runner-btc-dominance-signal-72c7a954
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xRukleB7zbSM2ivD0-U1q

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 apex-runner-btc-dominance-signal-72c7a954
```

Example prompt: What's the current Bitcoin dominance trend and should I rotate into altcoins or reduce altcoin exposure right now?

## When to prefer this

Use this endpoint when an agent needs a quick, actionable BTC dominance reading with an explicit altcoin allocation signal — particularly useful for crypto portfolio rebalancing logic, altcoin rotation strategies, or any workflow that needs to condition trades on macro BTC vs altcoin market structure. Prefer this over raw exchange data when you want a pre-interpreted directional signal rather than raw price data.

## Known failure modes

- Stale data if upstream market feed is delayed
- 402 Payment Required if USDC payment of $0.15 is not included
- 500 Internal Server Error if data provider is unreachable
- Empty or malformed JSON if the service is under maintenance

## How this service works

APEX Runner: Btc Dominance Signal

## Output

A JSON object with three fields: direction (string: 'rising', 'falling', or 'flat' indicating the BTC dominance trend), altcoin_bias (string: 'rotate', 'reduce', or 'neutral' indicating whether to shift allocation toward altcoins or back to BTC), and dominance_pct (float, e.g. 54.2, representing BTC's current share of total crypto market cap).

## Example request

```json
{}
```

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "direction": "rising",
  "altcoin_bias": "reduce",
  "dominance_pct": 54.2
 },
 "direction": "string — trend direction: rising, falling, or flat",
 "altcoin_bias": "string — altcoin allocation signal: rotate (into alts), reduce (to BTC), or neutral",
 "dominance_pct": "float — BTC market cap dominance as a percentage (e.g. 54.2)"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apex-runner-btc-dominance-signal-72c7a954/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apexrunner.ai](https://www.zero.xyz/host/apexrunner.ai/llms.txt)