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The sandbox environment lets you build and test your integration without moving real funds. It mirrors the production API with a few differences designed to make testing easier.

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Base URL

https://sandbox.api.otim.com/v0
Use sandbox API keys (created separately in your dashboard) to authenticate requests to this environment.

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What works in sandbox

The sandbox supports the full API surface. You can create Entities, Accounts, Counterparties, IBANs, and Transfers just like in production. Key differences:
  • No real funds are moved. Transfers are simulated and complete instantly.
  • Verification is auto-approved. Entities created in sandbox are automatically approved for KYC and ToS, so you can test the full flow without waiting for manual review.
  • IBANs accept simulated deposits. You can trigger test deposits to sandbox IBANs from your dashboard.
  • Webhooks fire normally. If you have a webhook URL configured, sandbox events will be delivered to it. Use this to test your webhook handler.

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Test data

Sandbox Accounts start with a zero balance. You can fund them by triggering a simulated deposit from your dashboard or by creating a test IBAN and sending a simulated fiat deposit.

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Moving to production

When you are ready to go live:
  1. Create production API keys in your dashboard.
  2. Switch your base URL to https://api.otim.com/v0.
  3. Ensure your Entities complete real KYC/KYB verification before issuing IBANs or processing live transfers.