# Signal Sprint Base USDC Balance Checker

> Signal Sprint Base USDC Balance Checker is a paid API for AI agents from signalsprint-mqysbksh.manus.space, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Retrieves the USDC balance on Base network for a given wallet address

## Facts

- Endpoint: GET https://signalsprint-mqysbksh.manus.space/service/base-usdc-balance?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signal-sprint-base-usdc-balance-checker-5761a7fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7Pslm2-t4YomT7MHvM-tP

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 signal-sprint-base-usdc-balance-checker-5761a7fa
```

Example prompt: Can you check the current USDC balance on Base for wallet address 0x1234abcd... and tell me how much is available?

## When to prefer this

Use this endpoint when you need a quick, paid on-chain lookup of USDC balance specifically on the Base network for a given wallet address. Prefer this over building your own RPC call when you want a simple, reliable API abstraction and are already operating within an x402 payment-enabled agent framework.

## Known failure modes

- Invalid or malformed wallet address returns an error
- Address with no USDC holdings returns zero balance
- Network connectivity issues or RPC failures may cause timeouts
- Rate limiting if too many requests are sent in quick succession
- Payment failure (x402) if the $0.005 USDC fee cannot be processed

## How this service works

A paid API for concise, professional agent profile bios. Payment uses USDC on Base through x402.

## Output

Returns the USDC balance held by the specified wallet address on the Base network, expressed as a numeric token amount (likely in USDC units or raw wei).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "address"
 ],
 "properties": {
  "address": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signal-sprint-base-usdc-balance-checker-5761a7fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalsprint-mqysbksh.manus.space](https://www.zero.xyz/host/signalsprint-mqysbksh.manus.space/llms.txt)