# Coin Railz Smart Contract Security Scanner

> Coin Railz Smart Contract Security Scanner is a paid API for AI agents from coinrailz.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).

Performs a basic smart contract security scan, returning a safety score and vulnerability checks for a given contract on a specified blockchain

## Facts

- Endpoint: POST https://coinrailz.com/x402/service/contract-scan
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coin-railz-smart-contract-security-scanner-0cf5bf3c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cq_LHPIs7VPqEA8vOHRU8

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 coin-railz-smart-contract-security-scanner-0cf5bf3c -d '<json body>'
```

Example prompt: Can you scan the smart contract at address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum and give me its safety score and any vulnerabilities found?

## When to prefer this

Use this endpoint when an agent needs a quick, automated security assessment of a smart contract before a user interacts with it, invests in a DeFi protocol, or approves a transaction. Prefer this over manual audits for fast, on-demand, programmatic contract safety checks at low cost ($1 USDC).

## Known failure modes

- Invalid or malformed contract address returns a 400 or error response
- Unsupported chain value causes a rejection or empty result
- Contract not found or not yet deployed on the specified chain
- Payment failure (x402) if USDC payment is not properly authorized
- Rate limiting or service unavailability returns a 5xx error

## How this service works

Basic smart contract security scan with safety score and vulnerability checks

## Output

Returns a safety score (numeric or rated) and a list of vulnerability checks indicating which security issues were detected or passed for the given smart contract on the specified chain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "chain",
  "contractAddress"
 ],
 "properties": {
  "chain": {
   "type": "string",
   "description": "Blockchain network"
  },
  "contractAddress": {
   "type": "string",
   "description": "Smart contract address"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-smart-contract-security-scanner-0cf5bf3c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinrailz.com](https://www.zero.xyz/host/coinrailz.com/llms.txt)