# APEX Runner Altcoin Season Signal

> APEX Runner Altcoin Season Signal is a paid API for AI agents from apexrunner.ai, paid per call via x402, $0.175/call, status unknown (last checked 2026-09-15).

Returns an altcoin season index (0-100), market phase signal, and top rotating sector to indicate whether altcoins or Bitcoin are currently dominating the market.

## Facts

- Endpoint: GET https://apexrunner.ai/signals/altcoin-season
- Price: $0.175/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-altcoin-season-signal-dbef2f5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p4AIGs0ELkjcLzb6INfhT

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-altcoin-season-signal-dbef2f5d
```

Example prompt: What's the current altcoin season index — is it altcoin season, bitcoin season, or neutral, and which sector like DeFi, AI, or Meme is rotating the strongest right now?

## When to prefer this

Use this endpoint when an agent needs to quickly classify the current crypto market cycle phase and identify the leading sector for rotation strategies, without needing full OHLCV data or exchange connectivity. Ideal for routing capital allocation decisions or filtering which assets to trade.

## Known failure modes

- Data unavailable or stale market data returns 503
- Payment not processed returns 402 Payment Required
- Rate limiting on repeated calls returns 429
- Invalid endpoint path returns 404

## How this service works

APEX Runner: Altcoin Season Signal

## Output

A JSON object with an integer altcoin season index from 0–100 (above 75 = altcoin season, below 25 = Bitcoin season), a string signal classifying the current market phase as 'altcoin_season', 'bitcoin_season', or 'neutral', and a top_sector string identifying the strongest rotating sector among L1, DeFi, AI, Meme, or RWA.

## Example request

```json
{
 "method": "GET"
}
```

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "index": "integer — altcoin season index 0-100 (>75 = altcoin season, <25 = bitcoin season)",
 "signal": "string — market phase: altcoin_season, bitcoin_season, or neutral",
 "example": {
  "index": 42,
  "signal": "bitcoin_season",
  "top_sector": "L1"
 },
 "top_sector": "string — strongest rotating sector: L1, DeFi, AI, Meme, or RWA"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apex-runner-altcoin-season-signal-dbef2f5d/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)