Meso provides two environments:

• SANDBOX - In this environment, no crypto assets are transferred and no fiat assets are moved.

• PRODUCTION - In this environment, production networks will be used to transfer real crypto assets. Fiat assets are moved.

You can specify the environment when initializing Meso.

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Testing values

In sandbox, you can use the following values for testing:

• transfer configuration

  • sourceAmount

    • "666.66" will cause onboarding to fail due to risk checks and the user will be frozen

    • "666.06" will fail the transfer with the payment being declined

• One-Time Passcode (SMS)

  • 000000 will succeed

• Onboarding values

  • Debit Card

    • Number: 4400000000000008

    • CVV: 435

    • Expiration Date: 12/2029

    • Taxpayer ID (last 4 digits of SSN)

    • 0000 will require the user enter a fully valid SSN (you can use 123345432).

    • Any other 4-digit combination will pass

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Production

Once you have completed your testing in the Sandbox you will need to request Production access from Meso. If you already have a unique partnerId for your project you can start the process through the existing channels established with the Meso team (e.g., Slack, Telegram, etc.) or by emailing mailto:support@meso.network.