# svm402 Wash-Trading Trend (wash-delta)

> svm402 Wash-Trading Trend (wash-delta) is a paid API for AI agents from svm402.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Returns an authenticity trend for a Solana token by comparing current wash-trading metrics against tamper-proof hourly baseline snapshots, yielding STABLE, DEGRADING, IMPROVING, or NO_BASELINE.

## Facts

- Endpoint: GET https://svm402.com/wash-delta/:address?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/svm402-wash-trading-trend-wash-delta-cf62ae6b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gzOChW1zG4uAqe9WR0ukC

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 svm402-wash-trading-trend-wash-delta-cf62ae6b
```

Example prompt: Check the wash-trading trend for Solana token EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v — has its authenticity been IMPROVING, DEGRADING, STABLE, or is there no baseline yet?

## When to prefer this

Use this endpoint when you need to understand temporal drift in a Solana token's wash-trading profile — not just the current snapshot, but whether authenticity is getting better or worse over time. Prefer this over the static wash-score or organic-score endpoints when your decision depends on trend direction (e.g. entering a position vs. monitoring an existing one). Ideal for repeated polling or agent-based alerting on authenticity changes.

## Known failure modes

- Invalid or malformed Solana mint address (not base58, wrong length) — returns 400 or error
- Token address not yet tracked — returns NO_BASELINE trend label
- Payment not included or insufficient — returns 402 Payment Required
- Network or upstream data unavailable — may return 503 or timeout
- Very new token with no hourly snapshots yet — returns NO_BASELINE

## How this service works

Authenticity trend for a Solana token — current wash metrics vs the server's own hourly snapshot history (tamper-proof baselines). Trend: STABLE / DEGRADING / IMPROVING / NO_BASELINE. Call this to se…

## Output

Returns a trend label (STABLE, DEGRADING, IMPROVING, or NO_BASELINE) for the token's authenticity, along with the delta between current wash metrics and the server's own tamper-proof hourly snapshots. If no prior baseline exists for the address, returns NO_BASELINE.

## 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"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "pathParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "maxLength": 44,
       "minLength": 32,
       "description": "Solana token mint address (base58, 32-44 chars)"
      }
     }
    }
   },
   "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/svm402-wash-trading-trend-wash-delta-cf62ae6b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from svm402.com](https://www.zero.xyz/host/svm402.com/llms.txt)