# Base EVM & Solana Smart Contract Security Scanner

> Base EVM & Solana Smart Contract Security Scanner is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Audits a Base EVM contract address or Solana SPL Mint for proxy upgrade patterns, GoPlus honeypot flags, and freeze authority risks

## Facts

- Endpoint: GET https://x402broker.com/v1/proxy-upgrade-risk?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-base-evm-solana-smart-contract-security-scanner-e3c3552a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vGoPvIFfondvqo5tUp2Qb

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 x402broker-com-base-evm-solana-smart-contract-security-scanner-e3c3552a
```

Example prompt: Can you scan the Base contract 0x4200000000000000000000000000000000000006 for proxy upgrade patterns, honeypot flags, and any other red flags before I interact with it?

## When to prefer this

Choose this endpoint when you need a quick, automated pre-interaction security check on a Base EVM contract or Solana SPL token mint — especially to catch honeypot traps, proxy upgrade backdoors, or freeze authority risks before a trade, integration, or investment. It is particularly useful for DeFi agents performing due diligence on unknown token contracts.

## Known failure modes

- Invalid or malformed address returns an error or empty result
- Address not found on Base or Solana networks results in no data
- GoPlus API unavailable may degrade honeypot flag detection
- Rate limiting or payment failure (HTTP 402) if x402 payment not completed
- Non-contract wallet addresses may return limited or no audit data

## How this service works

Audits any Base EVM 0x contract or Solana SPL Mint for proxy patterns, GoPlus honeypot flags, and freeze authority. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/proxy-upgrade-risk)

## Output

Returns a structured security report including whether the contract uses a proxy or upgradeable pattern, GoPlus honeypot analysis flags (e.g. sell restrictions, transfer limits), freeze authority status for Solana SPL mints, and an overall risk assessment for the given address.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "address"
 ],
 "properties": {
  "address": {
   "type": "string",
   "minLength": 1,
   "description": "0x EVM contract/wallet address on Base or Solana Base58 SPL Mint address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-com-base-evm-solana-smart-contract-security-scanner-e3c3552a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)