# Stelar Digital Market Brief

> Stelar Digital Market Brief is a paid API for AI agents from api.stelardigital.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-10).

Returns a consolidated crypto market brief for a single asset, combining price, sentiment, volatility risk, and market regime classification in one call.

## Facts

- Endpoint: GET https://api.stelardigital.com/bundle/market-brief?utm_source=zero.xyz
- Price: $1/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-market-brief-3adad08c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9hytR1jaGGB23xEVcPWTc

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-market-brief-3adad08c
```

Example prompt: Give me a full market brief for SOL — I want to see the current price, whether sentiment is bullish or bearish, the volatility risk level, and what regime the market is in right now.

## When to prefer this

Choose this endpoint when you need a single consolidated market snapshot combining price, sentiment, volatility, and regime for one of the eight supported assets — especially when building a decision-support layer for a trading bot or portfolio dashboard and want to avoid multiple individual API calls. Prefer it over sibling endpoints when breadth across all dimensions (price + sentiment + risk + regime) matters more than depth in any single dimension.

## Known failure modes

- Unsupported symbol — only ADA, BTC, DOGE, ETH, LTC, SOL, XLM, XRP are accepted; other tickers return a validation error
- Missing required 'symbol' query parameter returns a 400 error
- Payment not included or invalid USDC payment header returns 402 Payment Required
- Upstream data source unavailable may cause 503 or stale data

## How this service works

Complete market brief for one crypto asset in a single $1 call — trend regime, AI sentiment, live price with 24h/7d change, and volatility risk, combined from Stelar Digital's production classifiers. For agents needing full context before a trade decision without stitching together 4 separate calls. Input: ?symbol=SOL. Output: {symbol, regime, sentiment, price, risk, generated_at, disclaimer}.

## Output

A JSON object containing: current price, 24h and 7d percent change, bullish/bearish/neutral signal, sentiment score and label, volatility as ATR%, 80th-percentile ATR benchmark, drawdown risk level, market regime (chop/trend_up/trend_down/high_vol), regime feature values, grid suitability verdict and note, and a generated_at timestamp. Includes 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",
  "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-market-brief-3adad08c/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)