# Quartermaster Base Wallet Profile Report

> Quartermaster Base Wallet Profile Report is a paid API for AI agents from quartermaster.surewhynot.app, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-15).

Returns a bundled on-chain profile for a Base address: USDC balance, recent USDC transfers in/out, EOA-vs-contract classification, and x402 Bazaar merchant listings if applicable.

## Facts

- Endpoint: GET https://quartermaster.surewhynot.app/v1/base/wallet-report
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quartermaster-base-wallet-profile-report-d5816ae6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6Lp3HSHNiaxsV6T4sb-gj

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 quartermaster-base-wallet-profile-report-d5816ae6
```

Example prompt: Give me a full wallet report for 0x4a2b3c1d5e6f7890abcdef1234567890abcdef12 on Base — I want the USDC balance, recent transfers in and out, whether it's an EOA or contract, and any x402 Bazaar merchant listings.

## When to prefer this

Use this endpoint when you need a comprehensive, one-shot profile of a Base wallet address and want to avoid making four separate on-chain calls. Ideal for agents that need to quickly assess a wallet's USDC activity, type, and merchant status in a single paid lookup. Prefer this over individual balance or transfer endpoints when all four data points are needed simultaneously.

## Known failure modes

- Invalid or malformed address (not matching ^0x[0-9a-fA-F]{40}$) returns a 400 error
- Address not found on Base returns empty or zero values for balance and transfers
- No x402 Bazaar listings found returns an empty merchant listings array
- RPC or on-chain data provider timeout returns a 503 or gateway error
- Payment not settled (x402 flow failure) results in no data returned

## How this service works

One-call Base wallet profile: USDC balance, recent USDC transfers in/out, EOA-vs-contract type, and x402 Bazaar merchant listings if the address is a payTo. Bundles four on-chain lookups into a single paid call.

## Output

A bundled JSON response containing: current USDC balance, a list of recent USDC transfers (inbound and outbound), address classification (EOA vs smart contract), and any x402 Bazaar merchant listings associated with the address as a payTo recipient.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$",
       "description": "Base address to profile in one call"
      }
     }
    }
   },
   "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/quartermaster-base-wallet-profile-report-d5816ae6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quartermaster.surewhynot.app](https://www.zero.xyz/host/quartermaster.surewhynot.app/llms.txt)