🏦JOIN On/Off Ramp

🔑 API Keys

JOIN API authenticates your API requests using your account’s API key. Include your API key in the header of every request:x-join-key: <your_api_key>

Your API key carries many privileges, so be sure to keep it secure! Do not share your secret API keys in publicly accessible areas such as GitHub, client-side code, and so forth.

If your key is missing or invalid, the API will return 401 Unauthorized. You can always create or roll keys by contacting the JOIN team

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🌐 Sandbox and Production Modes

All JOIN APIs are available in both Sandbox and Production environments. Use Sandbox for development and testing, then switch to Production when you’re ready to go live.

Sandbox	https://api.uat.private.getjoin.io	Use your sandbox API key. Integrate as you would in Production — the flow is identical, but test funds are used.
Production	https://api.prd.private.getjoin.io	Use your production API key. Real SEPA deposits/withdrawals and wallet operations are processed.

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