# QRBase Ping 100 USDC

> QRBase Ping 100 USDC is a paid API for AI agents from www.qrbase.xyz, paid per call via x402, $100/call, status unknown (last checked 2026-10-12).

A simple ping endpoint on Base blockchain that charges 100 USDC per call via x402 payment protocol

## Facts

- Endpoint: POST https://www.qrbase.xyz/api/x402/ping100?utm_source=zero.xyz
- Price: $100/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Success rate: 0% of calls made through Zero
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/www-qrbase-xyz-4656a10f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C4HapNAuZZ2W31TPkPOWZ

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 www-qrbase-xyz-4656a10f -d '<json body>'
```

Example prompt: Send a 100 USDC ping request to the QRBase x402 endpoint on Base to test whether my high-value payment integration is working correctly.

## When to prefer this

Use this endpoint when you need to test or demonstrate a high-value x402 payment flow on the Base network, or when you want to validate that large USDC transactions via x402 protocol are functioning end-to-end. Prefer the sibling 0.001 USDC ping endpoint for low-cost testing; use this 100 USDC variant specifically when testing payment flows that involve significant amounts.

## Known failure modes

- Insufficient USDC balance — payment of 100 USDC cannot be completed
- Invalid or missing x402 payment header — 402 Payment Required response
- Network congestion on Base causing transaction delay or timeout
- Incorrect payment amount — must be exactly 100 USDC
- Wallet not authorized or misconfigured for x402 payments

## How this service works

Ping - 100 USDC on Base

## Output

A ping/pong style response confirming the endpoint was reached and the 100 USDC payment via x402 was successfully processed on the Base network.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/www-qrbase-xyz-4656a10f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.qrbase.xyz](https://www.zero.xyz/host/www.qrbase.xyz/llms.txt)