minia2a x402 Ping Check

Use this endpoint when you need to verify that the minia2a x402 infrastructure is operational before committing to a series of paid API calls. Prefer it as a lightweight pre-flight check or health probe rather than using heavier, purpose-specific endpoints for connectivity testing.

• Service offline or unreachable — returns error or timeout with no response body
• x402 payment verification failure — 402 response if payment header is missing or invalid
• Malformed input schema — missing required 'input' object causes validation error
• Network timeout if infrastructure is degraded or under maintenance