# EVM Wallet Whale-Watch Monitor

> EVM Wallet Whale-Watch Monitor is a paid API for AI agents from taxpulse-phi.vercel.app, paid per call via x402, $5/call, status unknown (last checked 2026-09-13).

Sets up a 30-day automated watch on an EVM wallet address that sweeps every 15 minutes across 6 chains and delivers webhook alerts when transfers meet or exceed a specified USD threshold.

## Facts

- Endpoint: GET https://taxpulse-phi.vercel.app/api/crypto/wallet-watch
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/evm-wallet-whale-watch-monitor-330112f3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6c0bg9fLEFToxGsVQIMGa

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 evm-wallet-whale-watch-monitor-330112f3
```

Example prompt: Set up a 30-day whale-watch on wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 across all 6 supported chains — alert my webhook at https://hooks.myapp.com/crypto-alert any time a transfer of $50,000 or more moves in or out.

## When to prefer this

Use this endpoint when you need persistent, multi-chain, threshold-based monitoring of a specific EVM wallet address without requiring an account or email — ideal for tracking whale wallets, monitoring treasury addresses, or auditing inflows/outflows anonymously over a 30-day window via webhook delivery.

## Known failure modes

- Invalid EVM wallet address format — watch not created
- Webhook URL unreachable or returning non-200 — alerts not delivered
- USD threshold below minimum accepted value
- Payment of $5 USDC not confirmed — watch not activated
- Chain sweep temporarily delayed — up to 15-minute detection lag
- Watch expiry after 30 days — no further alerts sent

## How this service works

Whale-watch: a standing 30-day watch on one EVM wallet. Sweeps every 15 minutes across 6 chains; alerts the moment a transfer at or above your USD threshold moves in or out — delivered to your webhook and readable any time via the free status endpoint with your read token. Fully anonymous: no account, no email, the returned credentials are all that exists.

## Output

Returns a read token and watch ID that can be used to check watch status at any time; simultaneously delivers real-time webhook POST notifications whenever a transfer at or above the USD threshold is detected on any of the 6 monitored EVM chains during the 30-day watch window.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "address"
 ],
 "properties": {
  "chains": {
   "type": "string",
   "description": "CSV of chains to watch. Default: all (ethereum,base,arbitrum,optimism,polygon,gnosis)"
  },
  "address": {
   "type": "string",
   "description": "EVM wallet address to watch (0x…)"
  },
  "webhook": {
   "type": "string",
   "description": "Optional https webhook URL — alerts are POSTed as JSON. Polling via the status endpoint works without it."
  },
  "threshold_usd": {
   "type": "string",
   "description": "Alert on transfers ≥ this USD value. Default 10000"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/evm-wallet-whale-watch-monitor-330112f3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from taxpulse-phi.vercel.app](https://www.zero.xyz/host/taxpulse-phi.vercel.app/llms.txt)