curl --request POST \
  --url https://api.entendre.finance/v1/cash-applications/preview \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "deposit_transaction_id": "txn_507f1f77bcf86cd799439011"
}
'

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({deposit_transaction_id: 'txn_507f1f77bcf86cd799439011'})
};

fetch('https://api.entendre.finance/v1/cash-applications/preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.entendre.finance/v1/cash-applications/preview"

payload = { "deposit_transaction_id": "txn_507f1f77bcf86cd799439011" }
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "data": {
    "deposit": {
      "id": "txn_507f1f77bcf86cd799439011",
      "amount": "100.00",
      "memo": "Invoice payment",
      "txn_date": "2026-08-31T12:00:00Z"
    },
    "derived_customer": null,
    "suggestions": [
      {
        "match_type": "exact",
        "confidence": 1,
        "total_amount": "100.00",
        "delta": "0.00",
        "allocations": [
          {
            "target_type": "invoice",
            "target_id": "inv_507f1f77bcf86cd799439011",
            "invoice_number": "INV-1001",
            "amount": "100.00",
            "customer_name": "Example customer"
          }
        ]
      }
    ],
    "candidate_pool_size": 1,
    "truncated": false
  }
}

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid path, query or request body.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication is required.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient access to organization",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "RESOURCE_NOT_FOUND",
    "message": "Resource not found",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "CONFLICT",
    "message": "The resource state does not allow this operation.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Rate limit exceeded. Retry after 30s.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "Service unavailable.",
    "request_id": "req_example"
  }
}