`GET /external_accounts/{id}`

Fetch by id.

curl "$BASE_URL/external_accounts/ea_01HZ…" \
  -H "Api-Key: $SEISMIC_ORCHESTRATION_API_KEY"

The external-account object

Same shape returned by create, list, update, and retrieve.

{
  "id": "ea_01HZ…",
  "customer_id": "cust_01HZ…",
  "account_type": "us",
  "currency": "usd",
  "account_owner_name": "Alice Zhang",
  "bank_name": "Wells Fargo",
  "active": true,
  "beneficiary_address_valid": true,
  "account": {
    "last_4": "1111",
    "routing_number": "121000248",
    "checking_or_savings": "checking"
  },
  "created_at": "2026-04-24T12:00:00Z",
  "updated_at": "2026-04-24T12:00:00Z"
}

Account details are redacted on read: only last_4 comes back.