# 402.com.tr Whale Flow Tracker

> 402.com.tr Whale Flow Tracker is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Returns the largest token transfers for a Base token in the last 24h, classifying whale movements as sell pressure (into DEX pools) or accumulation (out of DEX pools)

## Facts

- Endpoint: GET https://402.com.tr/api/x402/whale-flow
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402-com-tr-whale-flow-tracker-04ab055b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VAqBsLR6Gxr5EQN0aIpsh

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 402-com-tr-whale-flow-tracker-04ab055b
```

Example prompt: Can you check if any whales are actively dumping or accumulating the token at contract address 0x4200000000000000000000000000000000000006 on Base right now — I want to know the net sell pressure over the last 48 hours?

## When to prefer this

Use this endpoint when you need real-time, flow-based whale sentiment for a Base token — specifically to answer 'are whales selling right now?' rather than 'who holds the most tokens?'. Prefer this over holder-forensics endpoints when you want actionable near-term signals rather than structural ownership snapshots. Best for DeFi traders, risk monitors, or bots that need to detect active distribution or accumulation within the last 24-72 hours.

## Known failure modes

- Missing or invalid token contract address returns a 400 error
- Address for a non-Base token or non-existent contract may return empty results or error
- Hours parameter exceeding 72 returns an error or is clamped to max
- Payment failure (insufficient USDC) returns 402 status
- Stale or no transfer events in the window returns empty flow data

## How this service works

Flow, not snapshot: the largest transfers of a Base token in the last 24h, classified by whether whales are sending INTO DEX pools (sell pressure) or pulling OUT (accumulation) — a net sell-pressure read that decays in hours. Complements holder-forensics ('who could dump') with 'is anyone dumping now'. CDP-indexed events.

## Output

A list of the largest transfers for the given Base token in the specified time window, each classified as sell pressure (whale sending into DEX pool) or accumulation (whale pulling out of DEX pool), along with a net sell-pressure signal indicating current whale sentiment.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "hours": {
       "type": "string",
       "description": "Window in hours (default 24, max 72)"
      },
      "address": {
       "type": "string",
       "description": "Token contract address"
      }
     }
    }
   },
   "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/402-com-tr-whale-flow-tracker-04ab055b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402.com.tr](https://www.zero.xyz/host/402.com.tr/llms.txt)