# VAPE Exploit Check — On-Chain Contract Security Scanner

> VAPE Exploit Check — On-Chain Contract Security Scanner is a paid API for AI agents from vape-x402.vapex402.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Scans a Base blockchain contract or token address for known exploit patterns and security vulnerabilities, returning audit signals like proxy status, verification state, and contract name.

## Facts

- Endpoint: GET https://vape-x402.vapex402.workers.dev/scan/exploit_check
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vape-exploit-check-on-chain-contract-security-scanner-0fb6c2e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dtHY5QjiVXJmjrAyUvC-l

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 vape-exploit-check-on-chain-contract-security-scanner-0fb6c2e9
```

Example prompt: Can you run an exploit check on the Base contract at 0x4200000000000000000000000000000000000006 and tell me if it's verified, whether it's a proxy, and if there are any known security issues?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use on-chain exploit and safety scan specifically for Base (chain 8453) contracts or tokens, without setting up a full audit pipeline. It is ideal for agents that need to dynamically check contract safety before executing a transaction, recommending a DeFi protocol, or displaying token information to users.

## Known failure modes

- Invalid or malformed contract address returns an error or empty result
- Non-existent address on Base chain returns unverified/no contract found
- Unsupported chain ID override may fall back to Base (8453) or fail
- Payment failure via x402 protocol results in 402 status and no scan data
- Rate limiting or worker timeout if scan takes too long for complex contracts

## How this service works

VAPE exploit_check — Contract verification + proxy-swap surface check. Real on-chain/market data, no simulation.

## Output

Returns a JSON object containing the contract address, whether it is a proxy contract (boolean), whether it is verified on-chain (boolean), the contract name, and any additional exploit or security signals detected for the given Base address.

## 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": "optional chain id override, defaults to 8453"
      },
      "address": {
       "type": "string",
       "description": "Base (chain 8453) contract/token address to analyze"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "proxy": false,
  "address": "0x...",
  "verified": true,
  "contract_name": "Token"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vape-exploit-check-on-chain-contract-security-scanner-0fb6c2e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vape-x402.vapex402.workers.dev](https://www.zero.xyz/host/vape-x402.vapex402.workers.dev/llms.txt)