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A health check. Useful for confirming connectivity, DNS and TLS during setup, and for a liveness probe in your own monitoring.

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Endpoint

Authenticate with your public key. See Authentication.

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Request example

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Response

This is the fastest way to tell a credential problem from a connectivity problem. If ping succeeds but your order calls fail, the issue is your payload or encryption — not your key or your network.
Ping doesn’t touch order data or the payment processor, so a successful response doesn’t guarantee payments are processing normally. It confirms the API is reachable, nothing more.