# Mint Intel: Base Chain Contract Introspection

> Mint Intel: Base Chain Contract Introspection is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Performs batched on-chain introspection of any Base chain address, classifying it as EOA, EIP-7702 delegated EOA, ERC-20 token, NFT, or plain contract, with metadata extraction in a single RPC call.

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/base/contract/:address?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mint-intel-base-chain-contract-introspection-eb58a736
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W357m57whkZwHdexBB5YL

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 mint-intel-base-chain-contract-introspection-eb58a736
```

Example prompt: Look up the Base chain address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and tell me what kind of contract it is — whether it's an ERC-20 token, NFT, proxy, EOA, or something else, and give me its name, symbol, decimals, and owner if available.

## When to prefer this

Use this endpoint when you need a comprehensive, single-call snapshot of any Base chain address — especially when you want contract classification plus token metadata plus proxy and ownership data without making multiple separate RPC calls. Prefer this over raw eth_getCode when you need interpreted results and token standard detection. Choose this over Ethereum equivalents specifically for Base (L2) addresses.

## Known failure modes

- Invalid or malformed address format (non-0x-prefixed or wrong length) returns 400 error
- Address not found or network error returns 5xx error
- Contract may be partially compliant with a standard, causing incomplete metadata fields
- ERC-20 metadata calls may fail silently on non-standard tokens, returning nulls
- Proxy detection limited to EIP-1967 and common patterns; exotic proxies may not be detected
- Payment failure (x402) returns 402 if USDC payment is not correctly submitted

## How this service works

Best-effort Base contract introspection in one batched RPC call - bytecode presence and size, ERC-20 metadata (name, symbol, decimals, totalSupply), ERC-721 / ERC-1155 / ERC-165 detection, Ownable owner() and proxy implementation; classifies EOA, EIP-7702 delegated EOA, token, NFT or plain contract.

## Output

Returns a JSON object with the address, a kind classification (EOA, EIP-7702 delegated EOA, ERC-20 token, NFT ERC-721, NFT ERC-1155, or plain contract), bytecode presence and size, detected ERC standards array, ERC-20 metadata (name, symbol, decimals, totalSupply) if applicable, Ownable owner() address if applicable, and proxy implementation address if applicable — all gathered in a single batched RPC call.

## 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": "0x-prefixed 20-byte EVM address"
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "address",
      "kind",
      "standards"
     ],
     "properties": {
      "kind": {
       "type": "string"
      },
      "address": {
       "type": "string"
      },
      "standards": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mint-intel-base-chain-contract-introspection-eb58a736/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)