# PalmVox Crypto Market Overview

> PalmVox Crypto Market Overview is a paid API for AI agents from alpha.palmvox.com, paid per call via x402, $0.005/call, status down (last checked 2026-09-16).

Returns a real-time crypto market snapshot including top movers, fear/greed index, market sentiment, and volume leaders.

## Facts

- Endpoint: GET https://alpha.palmvox.com/api/market
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/alpha-palmvox-com-b11b351e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zavCL8D_dmtcaKojIftO_

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 alpha-palmvox-com-b11b351e
```

Example prompt: Give me a quick crypto market overview — show me the top movers, the current fear and greed index, and overall market sentiment.

## When to prefer this

Use this endpoint when you need a broad, at-a-glance crypto market snapshot in a single call — covering top movers, fear/greed sentiment, and market direction — without needing deep per-token analysis or DeFi-specific yield data. Prefer this over sibling endpoints when the user wants a general market pulse rather than a specific signal, yield search, or Base DEX focus.

## Known failure modes

- Live data unavailable — upstream data source may be down, resulting in stale or empty fields
- fearGreedIndex may return 50 (neutral) as a default when sentiment data is unavailable
- topMovers volume24h may return 0 when volume data cannot be fetched
- Payment not processed (x402 micropayment failure) — endpoint returns 402 before data is delivered
- totalCryptoMarketCap returns '—' when aggregator data is unavailable

## How this service works

Crypto market overview: top movers, volume leaders, sentiment analysis, and fear/greed index.

## Output

Returns a JSON object with an array of top movers (token, price, 24h change, volume), a fear/greed index score (0-100), a market sentiment string (e.g. 'neutral', 'bullish', 'bearish'), total crypto market cap, a news headline, and a Twitter pulse signal. Also includes links to related PalmVox endpoints.

## Example request

```json
{
 "query": "{\\\"input\\\": {\\\"type\\\": \\\"http\\\", \\\"method\\\": \\\"GET\\\", \\\"queryParams\\\": {}}}"
}
```

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "topMovers": {
       "type": "array"
      },
      "fearGreedIndex": {
       "type": "number"
      },
      "marketSentiment": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "timestamp",
  "topMovers",
  "trackRecord",
  "newsHeadline",
  "twitterPulse",
  "alsoAvailable",
  "fearGreedIndex",
  "marketSentiment",
  "totalCryptoMarketCap"
 ],
 "properties": {
  "timestamp": {
   "type": "string"
  },
  "topMovers": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "price",
     "token",
     "change24h",
     "volume24h"
    ],
    "properties": {
     "price": {
      "type": "number"
     },
     "token": {
      "type": "string"
     },
     "change24h": {
      "type": "number"
     },
     "volume24h": {
      "type": "number"
     }
    }
   }
  },
  "trackRecord": {
   "type": "string"
  },
  "newsHeadline": {
   "type": "string"
  },
  "twitterPulse": {
   "type": "string"
  },
  "alsoAvailable": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "url",
     "price"
    ],
    "properties": {
     "url": {
      "type": "string"
     },
     "price": {
      "type": "string"
     }
    }
   }
  },
  "fearGreedIndex": {
   "type": "number"
  },
  "marketSentiment": {
   "type": "string"
  },
  "totalCryptoMarketCap": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alpha-palmvox-com-b11b351e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha.palmvox.com](https://www.zero.xyz/host/alpha.palmvox.com/llms.txt)