# Stelar Digital Deep Signal — Crypto Asset Bundle Analysis

> Stelar Digital Deep Signal — Crypto Asset Bundle Analysis is a paid API for AI agents from api.stelardigital.com, paid per call via x402, $2.5/call, status unknown (last checked 2026-10-10).

Returns a comprehensive bundled analysis for a crypto asset including price, sentiment, volatility risk, market regime, and a synthesized trading signal in a single call.

## Facts

- Endpoint: GET https://api.stelardigital.com/bundle/deep-signal?utm_source=zero.xyz
- Price: $2.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stelar-digital-deep-signal-crypto-asset-bundle-analysis-053ca2b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AnIC3rKA3O0Ur7vI_zcBR

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 stelar-digital-deep-signal-crypto-asset-bundle-analysis-053ca2b1
```

Example prompt: Give me a deep signal bundle for SOL — price, sentiment, volatility risk, market regime, and whether it's a good setup for grid trading right now.

## When to prefer this

Choose this endpoint when you need a holistic, all-in-one market read for a supported crypto asset and want to avoid making five separate calls to price, sentiment, regime, volatility, and grid-param endpoints. Ideal for agents orchestrating trading decisions, dashboard briefings, or risk checks where latency budget allows one slightly heavier call. Prefer individual sibling endpoints only when you need a single signal in isolation or want to minimize per-call cost.

## Known failure modes

- Unsupported symbol passed (must be one of ADA, BTC, DOGE, ETH, LTC, SOL, XLM, XRP) — likely 400 or validation error
- Payment not included or insufficient — 402 Payment Required
- Upstream data source unavailable — may return stale or partial data
- Network timeout on real-time price or sentiment feed — 500 or timeout error

## How this service works

Everything in /bundle/market-brief (regime, sentiment, price, risk) plus an AI-generated synthesis connecting the signals and naming the single biggest risk factor — grounded only in the real data returned, never fabricated. For agents wanting one $2.50 call instead of a market brief plus a manual read. Input: ?symbol=SOL. Output: {symbol, regime, sentiment, price, risk, generated_at, disclaimer, analysis: {synthesis, key_risk}}.

## Output

A JSON object containing: current price with 24h/7d percentage changes and a bullish/bearish/neutral signal; sentiment score (-1 to 1) with label; volatility metrics (ATR percentage, ATR 80th-percentile 30-day baseline) and a drawdown risk rating; market regime classification (chop, trend_up, trend_down, high_vol) with ATR and EMA spread features; a grid suitability verdict with explanatory note; a synthesized narrative summary and key risk warning; and a generated_at timestamp. All wrapped with an educational disclaimer.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "enum": [
        "ADA",
        "BTC",
        "DOGE",
        "ETH",
        "LTC",
        "SOL",
        "XLM",
        "XRP"
       ],
       "type": "string",
       "description": "Asset symbol, e.g. SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "risk": {
   "note": "Volatility below its typical range — calmer conditions.",
   "volatility": 2.1,
   "atr_p80_30d": 3.4,
   "drawdown_risk": "low"
  },
  "price": {
   "price": 172.4,
   "chg_7d": 4.2,
   "signal": "bullish",
   "chg_24h": 1.8
  },
  "regime": {
   "regime": "chop",
   "features": {
    "atr_pct": 2.1,
    "atr_pct_p80_30d": 3.4,
    "ema12_48_spread_pct": 0.4
   },
   "grid_suitability": {
    "note": "Range-bound market: grids harvest oscillation — the ideal regime.",
    "verdict": "excellent"
   }
  },
  "symbol": "SOL",
  "analysis": {
   "key_risk": "A break of the 30-day volatility baseline could invalidate the range-bound read.",
   "synthesis": "SOL is range-bound with mild bullish sentiment and calmer-than-usual volatility, consistent with a grid-friendly regime."
  },
  "sentiment": {
   "label": "bullish",
   "sentiment": 0.42
  },
  "disclaimer": "Educational, not financial advice.",
  "generated_at": 1720400000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stelar-digital-deep-signal-crypto-asset-bundle-analysis-053ca2b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.stelardigital.com](https://www.zero.xyz/host/api.stelardigital.com/llms.txt)