# Volume Authenticity Check

> Volume Authenticity Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Analyzes a token's on-chain trading volume for wash-trading signatures and returns a 0-100 suspicion score with a verdict on how organic the activity appears.

## Facts

- Endpoint: GET https://402.com.tr/api/x402/volume-check?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/volume-authenticity-check-922870b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JJzuWN9vU0U2RUkuWHdcz

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 volume-authenticity-check-922870b4
```

Example prompt: Can you check if the trading volume for token at address 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed looks organic or if it shows wash-trading red flags like perfect buy/sell symmetry or volume way out of line with liquidity?

## When to prefer this

Choose this endpoint when you need a fast, quantified suspicion score for a single token's volume authenticity rather than a full due-diligence audit. It is ideal as a lightweight first-pass filter before deeper analysis, or when the specific concern is wash trading and volume manipulation rather than contract security or holder concentration. Prefer the Deep Due-Diligence endpoint if you need a comprehensive multi-factor risk report.

## Known failure modes

- Invalid or non-existent token contract address returns an error
- Token with no liquidity pool or insufficient on-chain data may return incomplete metrics
- Network congestion or RPC issues may cause timeouts
- Very new tokens with minimal trading history may produce low-confidence scores

## How this service works

Reads the deepest pool's 24h volume, buy/sell counts, liquidity and price move, and scores how organic the activity looks. Volume 10x+ the pool's liquidity, near-perfect buy/sell symmetry, or big volume that moves the price nowhere are the classic wash-trading signatures used to bait buyers. Returns a 0-100 suspicion score and verdict.

## Output

Returns a 0-100 suspicion score (higher = more suspicious) and a plain-language verdict, alongside the raw metrics used: 24h volume relative to pool liquidity, buy and sell transaction counts, and price movement vs volume ratio. Classic wash-trading signatures (volume 10x+ liquidity, near-perfect buy/sell symmetry, large volume with negligible price impact) are flagged explicitly.

## 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": {
      "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/volume-authenticity-check-922870b4/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)