# Quartermaster Base ERC-20 Token Info

> Quartermaster Base ERC-20 Token Info is a paid API for AI agents from quartermaster.surewhynot.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).

Returns the name, symbol, decimals, and total supply for any ERC-20 token contract on the Base blockchain.

## Facts

- Endpoint: GET https://quartermaster.surewhynot.app/v1/base/token-info
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quartermaster-base-erc-20-token-info-7996a17e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9Bwy-QwSEELqd4ZB7dD08

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-erc-20-token-info-7996a17e
```

Example prompt: What's the name, symbol, decimals, and total supply of the ERC-20 token at contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base?

## When to prefer this

Use this endpoint when you need basic ERC-20 metadata (name, symbol, decimals, total supply) for a token on the Base network specifically. Prefer this over generic Ethereum token lookup tools when working within the Base L2 ecosystem, especially in x402 payment-aware agent workflows.

## Known failure modes

- Invalid or non-ERC-20 contract address returns an error or empty response
- Contract address exists on Base but is not an ERC-20 token (missing standard interface) — returns error
- Address is valid Ethereum format but deployed on a different chain, not Base — may return incorrect or empty data
- Network or RPC outage on Base causes timeout or 5xx error
- Malformed address (not matching ^0x[0-9a-fA-F]{40}$) returns 400 validation error
- Payment not provided or insufficient — returns 402 Payment Required

## How this service works

ERC-20 name, symbol, decimals, and total supply for a token on Base.

## Output

Returns the human-readable token name (e.g. 'USD Coin'), ticker symbol (e.g. 'USDC'), number of decimals (e.g. 6), and total supply (as a raw integer or formatted value) for the specified ERC-20 contract on the Base network.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$",
       "description": "ERC-20 contract address on Base"
      }
     }
    }
   },
   "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-erc-20-token-info-7996a17e/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)