# EVM Wallet Whale-Watch Monitor

> EVM Wallet Whale-Watch Monitor is a paid API for AI agents from taxpulse.theaslangroupllc.com, 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 polls every 15 minutes across 6 chains and sends webhook alerts when transfers meet or exceed a USD threshold.

## Facts

- Endpoint: GET https://taxpulse.theaslangroupllc.com/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-bdeef8ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XTxqssM912ziJJ8OgP9oJ

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-bdeef8ed
```

Example prompt: Set up a 30-day whale watch on wallet 0xAb5801a7D398351b8bE11C439e05C5B3259aec9A — alert my webhook at https://hooks.myapp.com/crypto-alerts whenever a transfer of $50,000 or more moves in or out, across all 6 supported EVM chains.

## When to prefer this

Choose this endpoint when you need a persistent, multi-chain whale-watch on a specific EVM wallet address with webhook delivery and no account creation. Prefer this over block-explorer manual lookups or general blockchain APIs when you need proactive alerting over a 30-day window with USD-denominated thresholds rather than raw token amounts.

## Known failure modes

- Invalid wallet address format — returns error indicating malformed EVM address
- Webhook URL unreachable or returning non-2xx — alerts may be lost or retried depending on implementation
- USD threshold set to zero or negative — may trigger on every transfer or return validation error
- Payment not received or insufficient USDC — watch not activated
- Watch expires after 30 days — no further alerts sent, read token still returns historical status
- Chain polling temporarily disrupted — 15-minute sweep interval may be delayed

## 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 watch token and a read token. The watch token identifies the active 30-day monitor; the read token allows querying the watch status endpoint at any time to check current state, recent alerts, and matched transfers. Webhook POSTs are sent in near-real-time when a transfer meeting the USD threshold is detected on any of the 6 supported EVM chains.

## 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-bdeef8ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from taxpulse.theaslangroupllc.com](https://www.zero.xyz/host/taxpulse.theaslangroupllc.com/llms.txt)