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The API includes a sandbox environment so you can test your integration end-to-end without connecting to real bank accounts. The sandbox follows the same public API model as production: entities own connections, supported institutions are discovered from the catalog, unsupported ones can be anchored by portalUrl, and connections move through the same setup lifecycle. Base URL (sandbox): https://sandbox-api.waycore.com Auth: API keys (same flow as production) Typical sandbox flow:
  1. List or create an entity
  2. Search sandbox institutions via GET /v1/institutions
  3. Create or return a connection with POST /v1/connections using institutionId or portalUrl
  4. Submit the sandbox credentials for that connection
  5. Mark setup complete and wait for the connection to become ready
  6. Read accounts and transactions or test your sync loop
The sandbox contains demo institutions and deterministic transaction data so you can validate backfills, sync cursors, and webhook-driven updates safely. To get sandbox credentials, contact us at hello@waycore.com.