# BaseSafe Token Safety Checker

> BaseSafe Token Safety Checker is a paid API for AI agents from basesafe-x402.baseagentx402.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Checks the safety of a token on the Base blockchain by verifying attributes like verification status, owner, and mint authority

## Facts

- Endpoint: GET https://basesafe-x402.baseagentx402.workers.dev/check/: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/basesafe-x402-baseagentx402-workers-dev-e3198207
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wqFjdDcx7OBVRkDB5j5xP

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 basesafe-x402-baseagentx402-workers-dev-e3198207
```

Example prompt: Can you run a safety check on this Base token at address 0x4200000000000000000000000000000000000006 and tell me if it's verified, who the owner is, and whether there's a risky mint authority?

## When to prefer this

Use this endpoint when you need a quick, affordable ($0.01 USDC) on-chain safety assessment of a specific token contract on the Base blockchain — especially before trading, swapping, or interacting with an unfamiliar token. Prefer this over generic blockchain explorers when you need structured safety flags like verification status, mint authority, and owner in a single API response.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Base network
- Non-contract address (e.g. EOA wallet) may return no token data
- Service unavailable or payment not processed via x402 protocol
- Network timeout on Base RPC queries

## How this service works

Token safety check on Base (verified, owner, mint authority, etc.)

## Output

Returns safety attributes of the given token contract on Base, including whether it is verified, the owner address, mint authority details, and any other flags indicating risk or legitimacy.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "pathParams": {
   "address": "0x4200000000000000000000000000000000000006"
  }
 }
}
```

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Base ERC-20 token contract address (0x-prefixed, 40 hex chars)"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "token",
      "score",
      "recommendation",
      "flags"
     ],
     "properties": {
      "chain": {
       "enum": [
        "base"
       ],
       "type": "string"
      },
      "flags": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Risk flags raised"
      },
      "score": {
       "type": "number",
       "description": "Safety score, 0-100"
      },
      "token": {
       "type": "string",
       "description": "Checked token address"
      },
      "contract": {
       "type": "object",
       "description": "Verification & proxy status"
      },
      "liquidity": {
       "type": "object",
       "description": "Aerodrome pool depth in USD"
      },
      "ownership": {
       "type": "object",
       "description": "Owner, renounced, mint authority"
      },
      "recommendation": {
       "enum": [
        "OK",
        "CAUTION",
        "AVOID",
        "UNKNOWN"
       ],
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basesafe-x402-baseagentx402-workers-dev-e3198207/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from basesafe-x402.baseagentx402.workers.dev](https://www.zero.xyz/host/basesafe-x402.baseagentx402.workers.dev/llms.txt)