Create API Key Connection
Validates credentials and creates a ConnectedAccount for a non-OAuth platform.
The credential fields vary per platform — use GET /accounts/connect/{platform} to discover required fields.
Returns 409 Conflict if an active connection already exists for this tenant+platform. Returns 422 if credentials fail validation against the platform API.
Headers
{{tenant_key_name}}
Request
This endpoint expects a multipart form.
external_account_id
Optional: External merchant/account ID from the platform - max 255 chars - “merchant_123”
credentials[api_key]
Required (NMI): API key for authentication - string - “sk_test_abc123”
credentials[public_key]
Optional (NMI): Public key for frontend card tokenization - string - “pk_test_xyz789”
credentials[environment]
Required (NMI): Environment to connect to - sandbox|production - “sandbox”
credentials[webhook_signing_key]
Optional (NMI): Webhook signing key for signature verification - string
Response
Successful response
