# Honeypot Check – ERC-20 Sell-Block Risk Detector

> Honeypot Check – ERC-20 Sell-Block Risk Detector is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Simulates buy/sell/transfer transactions for any Base or Ethereum ERC-20 token and returns a honeypot verdict, tax percentages, and reason string to detect sell-blocking scams before swapping.

## Facts

- Endpoint: POST https://x402-deployer.x402-deployer.workers.dev/honeypot-check
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-23516ca7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LdQA1PPCtO04hac5oFXlH

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 x402-deployer-x402-deployer-workers-dev-23516ca7 -d '<json body>'
```

Example prompt: Before I swap into this token, run a honeypot check on contract address 0xAbC123...def on Ethereum — tell me if it's a honeypot, what the buy and sell taxes are, and whether the simulation succeeded.

## When to prefer this

Use this endpoint before every DEX swap on Base or Ethereum to screen ERC-20 tokens for honeypot patterns, sell-blocking mechanisms, or excessive taxes. Prefer this over manual contract audits when you need a fast, automated simulation-based verdict rather than static code analysis.

## Known failure modes

- Invalid or non-existent contract address returns an error or failed simulation flag
- Unsupported network (not Base or Ethereum) returns a network error
- Token with no liquidity may cause simulation failure
- Rate limiting or upstream RPC failure may return a 5xx error
- Newly deployed contracts with no trade history may yield inconclusive results

## How this service works

Honeypot.is buy/sell simulation for any Base or Ethereum ERC-20. Returns is_honeypot verdict, buy/sell/transfer tax %, simulation success flag, and a reason string when a honeypot is detected. Use before every swap to detect sell-blocking risk.

## Output

Returns a JSON object with: is_honeypot (boolean verdict), buy_tax (%), sell_tax (%), transfer_tax (%), simulation_success (flag), and a reason string explaining why a honeypot was detected when applicable.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "token_address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "base",
        "ethereum",
        "bsc"
       ],
       "type": "string",
       "description": "EVM chain. Default 'base'."
      },
      "token_address": {
       "type": "string",
       "description": "0x-prefixed 20-byte EVM token contract address."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "risk": {
       "type": "object",
       "properties": {
        "level": {
         "type": "string"
        },
        "reasons": {
         "type": "array"
        }
       }
      },
      "chain": {
       "type": "string"
      },
      "token": {
       "type": "object",
       "properties": {
        "name": {
         "type": "string"
        },
        "symbol": {
         "type": "string"
        },
        "address": {
         "type": "string"
        },
        "decimals": {
         "type": "integer"
        }
       }
      },
      "source": {
       "type": "string"
      },
      "contract": {
       "type": "object",
       "properties": {
        "has_owner": {
         "type": "boolean"
        },
        "has_proxy": {
         "type": "boolean"
        },
        "has_renounced_ownership": {
         "type": "boolean"
        }
       }
      },
      "simulation": {
       "type": "object",
       "properties": {
        "buy_tax_pct": {
         "type": "integer"
        },
        "is_honeypot": {
         "type": "boolean"
        },
        "sell_tax_pct": {
         "type": "integer"
        },
        "max_buy_amount": {
         "type": "string"
        },
        "max_sell_amount": {
         "type": "string"
        },
        "transfer_tax_pct": {
         "type": "integer"
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-23516ca7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-deployer.x402-deployer.workers.dev](https://www.zero.xyz/host/x402-deployer.x402-deployer.workers.dev/llms.txt)