# MolCloud Crypto Signals – Market Sentiment & Whale Alert Feed

> MolCloud Crypto Signals – Market Sentiment & Whale Alert Feed is a paid API for AI agents from api.molcloud.net, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).

Returns real-time crypto market sentiment and whale alert signals for a specified blockchain, paid per-request in USDC via x402.

## Facts

- Endpoint: GET https://api.molcloud.net/api/alpha/crypto-signals?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/molcloud-crypto-signals-market-sentiment-whale-alert-feed-a99505ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OEtS7i_bXrxkZd6Kze_6R

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 molcloud-crypto-signals-market-sentiment-whale-alert-feed-a99505ed
```

Example prompt: What's the current overall crypto market sentiment and are there any whale alerts on Base right now?

## When to prefer this

Choose this endpoint when an AI agent needs a quick, pay-per-use crypto market sentiment reading and whale activity snapshot without subscribing to a full data provider. Ideal for autonomous trading bots, DeFi agents, or portfolio monitors that only need signals on-demand and want to settle micropayments in USDC on Base via x402 rather than managing API keys or subscriptions.

## Known failure modes

- Payment not settled in USDC via x402 — returns 402 Payment Required
- Invalid or unsupported chain parameter — may return empty data or error
- Upstream data source unavailable — whale alerts array may be empty or sentiment stale
- Rate limit exceeded — request rejected
- Malformed query parameters — 400 Bad Request

## How this service works

41 pay-per-request AI, search, headless browser, crypto alpha & memory APIs for autonomous agents settling in USDC on Base via x402 v2.

## Output

A JSON object containing an array of whale alerts (large on-chain transactions of note) and an overall market sentiment string (e.g. 'Greed' or 'Fear'), along with a success status and the endpoint path.

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string",
       "default": "base",
       "description": "Target blockchain filter"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "status",
      "endpoint"
     ],
     "properties": {
      "data": {
       "type": "object"
      },
      "payer": {
       "type": "string"
      },
      "status": {
       "enum": [
        "success"
       ],
       "type": "string"
      },
      "endpoint": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "whaleAlerts": [],
   "overallMarketSentiment": "Greed"
  },
  "status": "success",
  "endpoint": "/api/alpha/crypto-signals"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/molcloud-crypto-signals-market-sentiment-whale-alert-feed-a99505ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.molcloud.net](https://www.zero.xyz/host/api.molcloud.net/llms.txt)