# EVM Token Security Verdict Engine

> EVM Token Security Verdict Engine is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).

Returns a PASS/CAUTION/AVOID verdict for an EVM token by combining GoPlus token security signals (honeypot, tax, proxy, open source, top holder) with DexScreener liquidity and volume data.

## Facts

- Endpoint: GET https://api.fadeandco.workers.dev/api/agent-intel/token-verdict-engine?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/evm-token-security-verdict-engine-f235bdf8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JV6OODe2o9DHsiqaEDFk0

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 evm-token-security-verdict-engine-f235bdf8
```

Example prompt: Can you do a security check on the token at 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Base — tell me if it's a honeypot, what the taxes are, and whether it gets a PASS, CAUTION, or AVOID verdict?

## When to prefer this

Use this endpoint when you need a fast, rule-based safety verdict on an EVM token across Base, Ethereum, BSC, Arbitrum, or Polygon — especially in trading bots, DeFi agents, or portfolio monitors where you want a single aggregated signal combining on-chain security metadata and real market liquidity. Prefer this over raw GoPlus or DexScreener calls when you want a pre-computed PASS/CAUTION/AVOID label with transparent, fixed rules rather than raw data you must interpret yourself. Not suitable for Solana tokens or for nuanced financial advice.

## Known failure modes

- Invalid or malformed contract address returns an error
- Unsupported chain name returns an error (Solana explicitly not supported)
- Token not found on GoPlus or DexScreener may return incomplete data or an error
- Cloudflare Workers timeout on slow upstream responses
- Rate limiting or upstream API downtime from GoPlus or DexScreener may cause failures

## How this service works

PASS / CAUTION / AVOID verdict for an EVM token (Base, Ethereum, BSC, Arbitrum, Polygon) from GoPlus token security (honeypot flag, buy/sell tax, open source, proxy, top holder share) and DexScreener (deepest pair liquidity, 24h volume). Rules are fixed and listed in the answer. Not financial advice; Solana is not covered.

## Output

A JSON object with the verdict field (PASS, CAUTION, or AVOID), human-readable reasons array explaining which rules triggered, security object (honeypot boolean, buyTax, sellTax, openSource, proxy, topHolderShare), market object (deepestLiquidityUsd, volume24hUsd, pairCount), token name, symbol, address, chain, and a checkedAt timestamp. The fixed rules are also returned in a rules field for transparency.

## 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",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "base, ethereum, bsc, arbitrum or polygon (default base)"
      },
      "address": {
       "type": "string",
       "description": "Token contract address 0x... (40 hex characters)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "USD Coin",
  "chain": "base",
  "rules": "AVOID: honeypot, cannot buy, or tax over 50%. CAUTION: liquidity under $10k, unverified source, proxy, tax over 10%, or top holder over 50%. Otherwise PASS.",
  "market": {
   "pairCount": 30,
   "volume24hUsd": 85719856,
   "deepestLiquidityUsd": 11490316
  },
  "source": "GoPlus token_security, DexScreener token-pairs",
  "symbol": "USDC",
  "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
  "reasons": [
   "proxy contract"
  ],
  "verdict": "CAUTION",
  "security": {
   "proxy": true,
   "buyTax": 0,
   "sellTax": 0,
   "honeypot": false,
   "openSource": true,
   "topHolderShare": 0.05657200052163858
  },
  "checkedAt": "2026-10-23T09:35:16.949Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/evm-token-security-verdict-engine-f235bdf8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fadeandco.workers.dev](https://www.zero.xyz/host/api.fadeandco.workers.dev/llms.txt)