# CRYPTYX Composite Momentum Signals

> CRYPTYX Composite Momentum Signals is a paid API for AI agents from cryptyx.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns composite momentum scores and delta values across multiple digital assets for a specified lookback window and forward return horizon

## Facts

- Endpoint: GET https://cryptyx.ai/api/signals/composite/momentum
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptyx-composite-momentum-signals-be2da7ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cBkbS8vRCQ_dy8j_eTRDU

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 cryptyx-composite-momentum-signals-be2da7ce
```

Example prompt: Pull CRYPTYX composite momentum scores for all tracked assets using a 7-day lookback window and a 14-day forward return horizon so I can see which crypto assets have the strongest momentum right now.

## When to prefer this

Use this endpoint when you need a multi-asset, composite momentum view with configurable lookback and forward-return horizons — ideal for portfolio screening, ranking assets by momentum, or building quantitative signals into trading workflows. Prefer this over single-asset price feeds when you want aggregated intelligence across many tokens simultaneously.

## Known failure modes

- Invalid window value outside 2-14 range returns a 400 error
- Invalid horizon value (not 7d, 14d, or 30d) returns a 400 error
- Insufficient payment or missing x402 payment header returns a 402 payment required error
- Service unavailable due to data pipeline delays may return a 503
- Empty asset list returned if no assets meet signal thresholds

## How this service works

N-day rolling delta on composite scores (master + per-class) with direction label (building / fading / steady). Detects conviction acceleration or decay — "is this composite gaining or losing energy?" Complements /signals/composite/heatmap (levels) with change-detection. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.

## Output

Returns an array of momentum objects per asset, each containing the asset ticker (e.g. BTC), a momentum delta value, a 1-day momentum score, and a 7-day momentum score — enabling ranking and comparison of momentum strength across digital assets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "window": {
   "type": "number",
   "description": "Lookback days (2-14)"
  },
  "horizon": {
   "type": "string",
   "description": "Forward return horizon: 7d, 14d, or 30d"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "momentum": [
  {
   "asset": "BTC",
   "delta": 0.04,
   "score_1d": 0.42,
   "score_7d": 0.38
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptyx-composite-momentum-signals-be2da7ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptyx.ai](https://www.zero.xyz/host/cryptyx.ai/llms.txt)