# Money Reactor Whale Radar — Large USDC Transfers on Base

> Money Reactor Whale Radar — Large USDC Transfers on Base is a paid API for AI agents from money-reactor.makar52nn2016.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).

Returns the latest large USDC transfers on the Base blockchain, including transfer amount, sender address, recipient address, and transaction hash, sourced from on-chain event log scanning.

## Facts

- Endpoint: GET https://money-reactor.makar52nn2016.workers.dev/api/whale-radar?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/money-reactor-whale-radar-large-usdc-transfers-on-base-5039692c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jKtYYEqPnpGGttDz7tLlT

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 money-reactor-whale-radar-large-usdc-transfers-on-base-5039692c
```

Example prompt: Pull up the latest whale-sized USDC transfers on Base right now — I want to see the amounts, sender and receiver addresses, and transaction hashes so I can follow where the big money is moving.

## When to prefer this

Choose this endpoint when you need a quick, pre-filtered snapshot of large USDC transfers on Base without setting up your own RPC node or indexer. It is ideal for agents doing real-time whale tracking, DeFi sentiment analysis, or smart money following on Base specifically. Prefer this over generic block explorers when you want structured JSON output ready for agent consumption with no parsing overhead.

## Known failure modes

- No large transfers in recent block range — returns empty list
- Base RPC node unavailability causes scan failure
- Payment not received — x402 payment required error before data is returned
- Rate limiting if called too frequently without valid payment
- Stale data if block finality is delayed on Base

## How this service works

Whale radar: latest large USDC transfers on Base via on-chain log scan - amount, from, to, tx; follow smart money in real time

## Output

Returns a list of recent large USDC transfer events on the Base blockchain, each containing the transfer amount in USDC, the sender wallet address, the recipient wallet address, and the transaction hash. Data is sourced from real-time on-chain event log scanning.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "ok": true,
     "price_usd": "0.005",
     "description": "Whale radar: latest large USDC transfers on Base via on-chain log scan - amount, from, to, tx; follow smart money in real time"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "price_usd": "0.005",
  "description": "Whale radar: latest large USDC transfers on Base via on-chain log scan - amount, from, to, tx; follow smart money in real time"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/money-reactor-whale-radar-large-usdc-transfers-on-base-5039692c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from money-reactor.makar52nn2016.workers.dev](https://www.zero.xyz/host/money-reactor.makar52nn2016.workers.dev/llms.txt)