# Trading Strategy Data – Crypto Composite Signal

> Trading Strategy Data – Crypto Composite Signal is a paid API for AI agents from strategysignals.duckdns.org, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-13).

Returns a transparent, methodology-backed composite score (trend, volatility, relative strength) and conviction rating for BTC, ETH, or SOL.

## Facts

- Endpoint: POST https://strategysignals.duckdns.org/tools/strategy-composite
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trading-strategy-data-crypto-composite-signal-cbd5465e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gnx-HX-W-cWkBkLuAbApI

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 trading-strategy-data-crypto-composite-signal-cbd5465e -d '<json body>'
```

Example prompt: What's the current composite trend signal for BTC — give me the trend, volatility, and relative strength breakdown with the conviction level?

## When to prefer this

Choose this endpoint when you need a transparent, verifiable, methodology-disclosed composite trading signal for BTC, ETH, or SOL — especially when you need to audit or backtest the underlying components (trend vs 200-day SMA, volatility percentile, cross-asset relative strength ranking) rather than trust a black-box model score.

## Known failure modes

- Invalid asset symbol (must be BTC, ETH, or SOL) results in validation error
- Market data unavailability may produce stale or error response
- Payment failure (insufficient USDC) blocks request via x402 protocol
- Malformed request body (missing 'asset' field) returns schema validation error
- DuckDNS domain may have intermittent resolution issues reducing reliability

## How this service works

The flagship signal: a single transparent 0-100 conviction score combining trend regime, volatility context, and relative strength vs other tracked assets -- with the full component breakdown shown, not a black-box model. Every number is independently verifiable via strategy-consensus, strategy-rank, or strategy-backtest.

## Output

A JSON object containing the requested asset symbol, a composite score (0–100), individual component scores for trend (vs 200-day SMA), volatility (percentile), and relative strength (ranking among BTC/ETH/SOL), each with weight and human-readable detail, plus a conviction label (e.g. 'high_conviction') and a plain-text methodology explanation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "asset": {
   "enum": [
    "BTC",
    "ETH",
    "SOL",
    "XRP",
    "ADA"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "asset": "BTC",
  "components": [
   {
    "name": "trend",
    "score": 58.4,
    "detail": "+8.40% vs its own 200-day SMA",
    "weight": 0.5
   },
   {
    "name": "volatility",
    "score": 78,
    "detail": "volatility percentile 0.22 (lower = calmer = more favorable)",
    "weight": 0.25
   },
   {
    "name": "relative_strength",
    "score": 100,
    "detail": "ranked 1 of 3 tracked assets by trend strength",
    "weight": 0.25
   }
  ],
  "conviction": "high_conviction",
  "methodology": "Transparent weighted score, not a black-box model: 50% trend + 25% volatility + 25% relative strength. Verify any component yourself.",
  "composite_score": 72.3
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trading-strategy-data-crypto-composite-signal-cbd5465e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from strategysignals.duckdns.org](https://www.zero.xyz/host/strategysignals.duckdns.org/llms.txt)