# Sentinel Token Safety — ERC-20 Rug Risk Scanner for Base

> Sentinel Token Safety — ERC-20 Rug Risk Scanner for Base is a paid API for AI agents from www.0816.cn, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-19).

Scans any ERC-20 token contract on Base for rug-pull risk, returning honeypot detection, token tax, LP lock status, hidden mint, owner renouncement, and a 0-100 rug risk score.

## Facts

- Endpoint: GET https://www.0816.cn/v1/base/honeypot-scan
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sentinel-token-safety-erc-20-rug-risk-scanner-for-base-a9918a0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EXKjV1_XLH07gEruSuihv

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 sentinel-token-safety-erc-20-rug-risk-scanner-for-base-a9918a0e
```

Example prompt: Before I swap into this token, can you run a rug risk scan on contract 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed on Base — check for honeypot, token tax, LP lock, hidden mint, and whether the owner has renounced?

## When to prefer this

Use this endpoint when an AI agent needs to evaluate the safety of an ERC-20 token on Base before any buy, swap, or approval action. It is specifically optimized for Base-chain ERC-20 tokens and returns a single aggregated rug risk score plus individual safety flags, making it ideal for automated pre-trade gatekeeping. Prefer it over generic contract auditors when you need fast, cheap ($0.02), on-demand honeypot and rug-pull detection rather than a full audit report.

## Known failure modes

- Invalid or malformed contract address returns an error or empty result
- Contract not deployed on Base (wrong chain) may return no data or misleading nulls
- Very new tokens with no on-chain history may have incomplete LP lock or tax data
- Rate limiting or payment failure returns 402 or 429 error
- Proxy or upgradeable contracts may obscure true mint/owner logic (sibling endpoint recommended for those)

## How this service works

Token rug risk score for any ERC-20 on Base (GET ?contract=0x… or POST body {contract}). Returns honeypot detection, token tax check, LP lock status, hidden mint, owner renounced, and a rug risk score 0-100. Call before any agent buys, swaps or approves a token. Also detects scam token patterns. $0.02 USDC

## Output

Returns a structured response containing: a rug risk score from 0 (safe) to 100 (high risk), honeypot detection boolean, buy/sell token tax percentages, liquidity pool lock status, hidden mint function detection, owner renouncement status, and identified scam token patterns. All fields relate to the queried ERC-20 contract on the Base network.

## 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": [
      "contract"
     ],
     "properties": {
      "contract": {
       "type": "string",
       "description": "address (0x...) — also accepted in POST body"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sentinel-token-safety-erc-20-rug-risk-scanner-for-base-a9918a0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.0816.cn](https://www.zero.xyz/host/www.0816.cn/llms.txt)