# DeFi Address Security Check

> DeFi Address Security Check is a paid API for AI agents from defi.hugen.tokyo, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Checks an EVM wallet address or contract against multi-chain security databases to detect malicious wallets, phishing addresses, scam contracts, and blacklisted entities.

## Facts

- Endpoint: GET https://defi.hugen.tokyo/defi/address
- 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/defi-hugen-tokyo-69d814b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mMjsiuBCx9Y7xeui1kXDx

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 defi-hugen-tokyo-69d814b0
```

Example prompt: Can you check if this Ethereum address 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD is safe — I want to know if it's flagged as malicious, a phishing contract, or blacklisted on any EVM chain before I interact with it.

## When to prefer this

Use this endpoint when you need a chain-independent security check on an EVM address before interacting with it — especially useful for wallets, DeFi contracts, or counterparties where trust is unknown. Prefer over manual chain-specific blacklist lookups since it aggregates multiple security databases in one call.

## Known failure modes

- Invalid or malformed address returns an error response
- Address not found in any security database returns a clean/unknown status
- Network timeout or upstream database unavailability
- Payment not received or insufficient USDC results in 402 response

## How this service works

Address security check — detect malicious wallets, known phishing addresses, scam contracts, and blacklisted entities across all EVM chains. Chain-independent lookup against multi-chain security databases. No API keys needed. Accepts USDC payments on Base and Solana

## Output

Returns a security assessment for the queried address, indicating whether it is flagged as malicious, blacklisted, associated with phishing, scam contracts, or other fraudulent activity across EVM-compatible chains.

## Example request

```json
{
 "chain": "eth",
 "address": "0xd8dA6BF26964aF9D68eC213042AeFf24Bf3bD58"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-hugen-tokyo-69d814b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi.hugen.tokyo](https://www.zero.xyz/host/defi.hugen.tokyo/llms.txt)