# Base Wallet Enrichment & On-Chain Profile

> Base Wallet Enrichment & On-Chain Profile is a paid API for AI agents from agents.samedaydesk.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Enriches a Base/EVM wallet address with on-chain profile data including ETH and token balances, NFT metadata, proxy detection, activity, and a derived profile label

## Facts

- Endpoint: GET https://agents.samedaydesk.com/wallet-enrich
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-wallet-enrichment-on-chain-profile-ca0572b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qww_1uRKI2PRT6rzL0oZ-

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 base-wallet-enrichment-on-chain-profile-ca0572b0
```

Example prompt: Before I send funds to 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base, can you pull up its on-chain profile — token balances, whether it's a contract or EOA, any proxy detection, and a summary label?

## When to prefer this

Use this endpoint when an AI agent needs to pre-screen a Base mainnet address before sending funds, executing a swap, or calling a contract. It is uniquely suited for Base chain, requires no API key, covers EOA/contract distinction and proxy detection in a single call, and is priced per-use via x402 micropayment — ideal for automated agent workflows that need safe, lightweight wallet intelligence without managing credentials.

## Known failure modes

- Invalid address format (not 0x + 40 hex) returns an error
- Address not found or zero-activity wallet may return sparse data
- Base RPC rate limits or downtime may cause timeout or partial data
- Non-Base EVM addresses (e.g. Ethereum mainnet) may return no or incorrect data
- Malformed query parameter returns schema validation error

## How this service works

Base address -> agent-ready on-chain profile: EOA or contract, ETH and major-token holdings, token or NFT metadata, EIP-1967 proxy detection, activity, and a derived profile label. Uses public Base mainnet RPC with no account or API key. Useful before an agent sends funds, swaps, or calls a contract.

## Output

Returns a structured on-chain profile for the given Base address including: EOA vs contract classification, ETH and major token balances, token and NFT metadata, EIP-1967 proxy detection result, recent activity indicators, and a derived human-readable profile label — all sourced from public Base mainnet RPC with no API key required.

## 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": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "A Base/EVM address (0x + 40 hex), e.g. 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "address",
      "type"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "type": {
       "enum": [
        "eoa",
        "contract"
       ],
       "type": "string"
      },
      "native": {
       "type": "object"
      },
      "address": {
       "type": "string"
      },
      "profile": {
       "type": "string"
      },
      "activity": {
       "type": "object"
      },
      "contract": {
       "type": "object"
      },
      "tokenHoldings": {
       "type": "array"
      },
      "holdingsSummary": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "contract",
  "native": {
   "symbol": "ETH",
   "balance": "0.0098"
  },
  "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
  "network": "base-mainnet (eip155:8453)",
  "profile": "token-contract:USDC",
  "contract": {
   "token": {
    "name": "USD Coin",
    "symbol": "USDC",
    "decimals": 6,
    "totalSupply": "4157703919.56"
   },
   "standard": "ERC-20 (token)"
  },
  "tokenHoldings": [
   {
    "kind": "stable",
    "amount": "1000.0",
    "symbol": "USDC"
   }
  ],
  "holdingsSummary": {
   "distinctTokens": 1,
   "hasStablecoins": true,
   "stablecoinUnits": 1000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-wallet-enrichment-on-chain-profile-ca0572b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.samedaydesk.com](https://www.zero.xyz/host/agents.samedaydesk.com/llms.txt)