# x402Node DeWash — Wash Trading & Sybil Detection for x402 Payees

> x402Node DeWash — Wash Trading & Sybil Detection for x402 Payees is a paid API for AI agents from api.x402node.dev, paid per call via x402, $4.99/call, status unknown (last checked 2026-10-02).

Analyzes a payTo address to separate real organic customer revenue from wash trading, self-funded circular payments, and sybil clusters using two-hop on-chain USDC funding traces on Base.

## Facts

- Endpoint: GET https://api.x402node.dev/x402/dewash?utm_source=zero.xyz
- Price: $4.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402node-dewash-wash-trading-sybil-detection-for-x402-payees-1c772ff5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JRiGUUZlL0gR2pQ4KQ9QE

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 x402node-dewash-wash-trading-sybil-detection-for-x402-payees-1c772ff5
```

Example prompt: Run a dewash check on the x402 payee address 0x1234...abcd — I want to know how many of their USDC payments came from real independent customers versus circular self-funding or sybil rings.

## When to prefer this

Use this endpoint when you need to audit the authenticity of x402 revenue for a specific payee address on Base — especially before trusting an agent's claimed traction, evaluating a provider's real customer base, or detecting wash trading in micropayment streams. Prefer this over generic blockchain explorers when you specifically need sybil cluster detection and two-hop USDC funding source analysis in a single call.

## Known failure modes

- Invalid or malformed payTo address returns a 400 error
- Address with no on-chain USDC activity returns zero counts and empty trace
- Rate limiting or payment failure returns 402 with payment required
- Base RPC timeout causes delayed or failed trace response
- Very new addresses with insufficient transaction history may produce inconclusive results

## How this service works

De-washed x402 revenue intelligence and wash trading detection for AI agents. Pass payTo for a payee real independent customer count versus self funded volume. Two hop on-chain USDC funding trace separates organic demand from circular self payment rings, sybil clusters, and fake volume. Search terms: x402 revenue, wash trading, sybil detection, bot volume, real customers, agent reputation. Accepts payment on Base or Solana — either network works.

## Output

Returns the real independent customer count versus self-funded or circular volume for the given payTo address, including two-hop USDC funding traces that flag wash trading rings, sybil clusters, and bot-driven fake volume, giving a clear picture of organic demand.

## 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": {
      "payTo": {
       "type": "string",
       "description": "Payee address to analyze (optional)"
      },
      "payto": {
       "type": "string",
       "description": "Payto (optional)"
      },
      "address": {
       "type": "string",
       "description": "EVM/chain address (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402node-dewash-wash-trading-sybil-detection-for-x402-payees-1c772ff5/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)