# USD Coin (USDC) Balance on Base Network

> USD Coin (USDC) Balance on Base Network is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Fetches the live USDC token balance for a given wallet address on the Base blockchain using an ERC-20 contract lookup.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/crypto-base-usdc-balance-market-research?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/usd-coin-usdc-balance-on-base-network-514335bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lRLS4k3An7UZTkiMDHBJr

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 usd-coin-usdc-balance-on-base-network-514335bc -d '<json body>'
```

Example prompt: What's the current USDC balance for wallet address 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C on Base — use the standard USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913?

## When to prefer this

Use this endpoint when you need a real-time, live on-chain USDC balance for any Base network wallet address, particularly for market research, portfolio monitoring, counterparty due diligence, or DeFi analytics workflows. Prefer this over general blockchain explorers when you need a programmatic, agent-callable lookup with live data rather than a UI-driven search.

## Known failure modes

- Invalid wallet address format returns an error or zero balance
- Invalid or non-USDC ERC-20 contract address returns incorrect or zero balance
- Network congestion or RPC unavailability may delay or fail the response
- Address with no USDC holdings returns a zero balance (not an error)
- Payment of $0.01 USDC required — missing payment results in 402 rejection

## How this service works

Base USDC wallet balance for Market research: Read a wallet token balance on Base for a supplied ERC-20 contract. Focus: market research. Uses live Coinbase Exchange or Base RPC data.

## Output

Returns the live USDC token balance held by the specified wallet address on the Base network, derived from on-chain ERC-20 contract data via Coinbase Exchange or Base RPC.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "token": {
   "type": "string",
   "default": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  },
  "address": {
   "type": "string",
   "default": "0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/usd-coin-usdc-balance-on-base-network-514335bc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)