# Recent Whale USDC Transfers on Base

> Recent Whale USDC Transfers on Base is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns the top 50 recent large USDC transfers on Base mainnet with auto-classified sender/receiver addresses, behavioral tags, and known entity names.

## Facts

- Endpoint: GET https://api.x402node.dev/wallet/recent-whales
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-x402node-dev-fe41ef3d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sorykj2xgferDef_sBsv9

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 api-x402node-dev-fe41ef3d
```

Example prompt: Show me the biggest USDC whale transfers on Base from the last 2 hours — only ones over $500,000 — and tell me who the senders and receivers are if you can identify them.

## When to prefer this

Use this endpoint when you need real-time whale movement intelligence on Base mainnet specifically — with the added value of auto-classified addresses and known entity names. Prefer this over generic block explorers when you want pre-sorted, pre-labeled whale data ready for trading alpha or treasury monitoring without writing your own classification logic.

## Known failure modes

- min_usd below 1000 returns validation error
- hours exceeds 6 returns validation error or capped result
- No transfers found for very high min_usd threshold in short window returns empty list
- RPC backend unavailable returns 5xx error
- Payment not included or insufficient returns 402 Payment Required

## How this service works

Recent large USDC transfers on Base mainnet with auto-classification of sender and receiver addresses. Query parameters: min_usd (default 100000, min 1000), hours (default 1, max 6). Returns top 50 sorted transfers with from/to addresses, behavioral tags, names if known, amount_usd, tx hash, block. For trading alpha agents tracking whale movements, treasury flow monitoring. Accepts payment on Base or Solana — either network works.

## Output

A list of up to 50 large USDC transfers sorted by size, each with from/to addresses, behavioral classification tags, known entity names (if available), USD amount, transaction hash, and block number. Covers the last 1–6 hours filtered by a minimum USD threshold.

## 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": {
      "scan": {
       "type": "string",
       "description": "Scan (optional)"
      },
      "min_usd": {
       "type": "string",
       "description": "Min_usd (optional)"
      },
      "toAddress": {
       "type": "string",
       "description": "ToAddress (optional)"
      },
      "fromAddress": {
       "type": "string",
       "description": "FromAddress (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-x402node-dev-fe41ef3d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)