# Crypto Whale Flow Monitor – Large ETH Exchange Transfers

> Crypto Whale Flow Monitor – Large ETH Exchange Transfers is a paid API for AI agents from asistent-crypto.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns large ETH transfers (>100 ETH) to and from known exchange wallets in the last 2 hours, categorized as potential exchange inflows (distribution pressure) or outflows (accumulation/cold storage).

## Facts

- Endpoint: POST https://asistent-crypto.vercel.app/api/x402/data/whale-flows
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-whale-flow-monitor-large-eth-exchange-transfers-919dfe0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_opuL2S6V4CbPDYaB295H5

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 crypto-whale-flow-monitor-large-eth-exchange-transfers-919dfe0b -d '<json body>'
```

Example prompt: Pull the latest whale ETH flows for the last 2 hours — I want to see which large transfers (over 100 ETH) went into or out of exchanges and whether there's any significant inflow pressure building up.

## When to prefer this

Choose this endpoint when you need a quick, real-time pulse on large ETH movements between known exchanges and external wallets — particularly useful as a pre-trade context check or market regime filter. It is distinct from general on-chain analytics in that it is scoped specifically to >100 ETH transfers, exchange-labeled wallets, and a 2-hour rolling window, making it ideal for short-term sentiment signals rather than deep historical analysis.

## Known failure modes

- No recent whale transfers above the 100 ETH threshold returns an empty result set
- Exchange wallet labeling may be incomplete for newer or less-known exchange addresses
- Single large transfers may be internal desk rotations misread as market signals
- API may return stale data if the upstream on-chain data source is delayed
- Payment failure (insufficient USDC or x402 protocol issue) results in 402 error

## How this service works

Large ETH transfers (>100 ETH) to and from known exchange wallets in the last 2 hours. Inflows to exchanges are potential distribution pressure, outflows suggest accumulation or a move to cold storage — but read them as context, not instruction: a single large transfer is often internal rotation between wallets of the same desk.

## Output

A list of large ETH transfers (>100 ETH) involving known exchange wallets in the past 2 hours, including transfer direction (inflow to exchange or outflow from exchange), ETH amount, wallet labels, timestamps, and contextual notes about what the flows may signal (distribution pressure vs. accumulation or cold storage movement).

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-whale-flow-monitor-large-eth-exchange-transfers-919dfe0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from asistent-crypto.vercel.app](https://www.zero.xyz/host/asistent-crypto.vercel.app/llms.txt)