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NorthFond uses secret bearer credentials. Keep keys on your server and never place them in browser code, mobile applications, source control, screenshots, or logs.

IP restrictions

Each key can allow up to ten exact IPv4 or IPv6 addresses. Requests from other addresses are rejected before endpoint processing.

Rate limits

Responses include X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset. Limited requests return 429 and a Retry-After header.

Server environments

The API reference currently targets the public NorthFond backend at https://payment.gideondevrel.xyz. Sandbox and live access are separated by the credential prefix and the environment attached to the credential, not by putting a key in the URL.