Validate a UK bank account for Direct Debit

Validates UK bank account details (sort code + account number) for Direct Debit eligibility with the bureau.

Related endpoints

• GET /dd/mandate-requests/{token} — Look up a pending signed mandate request
• POST /dd/preview — Preview the Direct Debit collection date chain

Common errors

• 400 invalid_request — malformed payload or failed validation.
• 401 unauthenticated — missing, malformed, or revoked API key.

Idempotency

Pass an Idempotency-Key header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see the idempotency guide.

curl -X POST "https://api.revkeen.com/v2/dd/validate" \
  -H "x-api-key: $REVKEEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "sortCode": "20-00-00",
    "accountNumber": "55779911"
  }'

{
  "valid": true,
  "bank_name": "Barclays",
  "dd_enabled": true,
  "errors": [
    "string"
  ]
}

{
  "error": "Bad request"
}

{
  "error": "Unauthorized"
}

{
  "error": "Internal server error"
}