# Crypto Whale Wallet Tracking API

> Crypto Whale Wallet Tracking API is a paid API for AI agents from nonvisceral-eloisa-mousily.ngrok-free.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Tracks large wallet movements on Ethereum, Base, and Arbitrum to detect directional stance (bullish/bearish/neutral), capital flows, and bridge activity of crypto whales.

## Facts

- Endpoint: GET https://nonvisceral-eloisa-mousily.ngrok-free.dev/api/whale-alerts
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nonvisceral-eloisa-mousily-ngrok-free-dev-7355577b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NzPJaI1DYvOmIxkfMJAp9

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 nonvisceral-eloisa-mousily-ngrok-free-dev-7355577b
```

Example prompt: What are the crypto whales doing right now — are they bullish or bearish? Pull the latest whale wallet tracking data showing capital flows and bridge activity across Ethereum, Base, and Arbitrum and tell me their current directional stance and confidence.

## When to prefer this

Choose this endpoint when you need on-chain smart money signals derived from actual large wallet behavior rather than price-based technical indicators. Best for trading agents that want to incorporate whale accumulation/distribution as a directional input, particularly across Ethereum, Base, and Arbitrum. Prefer over exchange-based endpoints when you want DeFi bridge activity and cross-chain capital flow context.

## Known failure modes

- Service unreachable via ngrok tunnel (502/504) — ngrok free tier may be offline or rate-limited
- Empty or stale data if no significant whale moves have been detected recently
- Missing or null fields if on-chain data sources are temporarily unavailable
- Payment required error (402) if x402 payment header is not provided or USDC balance is insufficient
- Rate limiting if too many requests are made in a short window

## How this service works

Crypto whale wallet tracking API: on-chain smart money capital flows, DeFi whale bridge activity, directional stance detection. Track large wallet movements across Ethereum, Base, and Arbitrum chains for trading signals.

## Output

Returns the tracked whale wallet address, directional stance (BULLISH/BEARISH/NEUTRAL), a confidence score (0-1), 30-day net capital flow direction, recent significant bridge and transfer activity, a human-readable explanation of the stance, total number of moves tracked, and a timestamp of when the data was last updated.

## 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": {
      "stance": {
       "type": "string",
       "description": "Directional stance: BULLISH, BEARISH, NEUTRAL"
      },
      "wallet": {
       "type": "string",
       "description": "Tracked whale wallet address"
      },
      "confidence": {
       "type": "number",
       "description": "Confidence score 0-1"
      },
      "updated_at": {
       "type": "string"
      },
      "capital_flow": {
       "type": "object",
       "description": "30-day net capital flow direction"
      },
      "recent_moves": {
       "type": "array",
       "description": "Recent significant bridge/transfer activity"
      },
      "stance_reason": {
       "type": "string",
       "description": "Explanation of current stance"
      },
      "total_moves_tracked": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nonvisceral-eloisa-mousily-ngrok-free-dev-7355577b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nonvisceral-eloisa-mousily.ngrok-free.dev](https://www.zero.xyz/host/nonvisceral-eloisa-mousily.ngrok-free.dev/llms.txt)