curl --request POST \
  --url https://api.melso.ai/v1/companies/{company_id}/income \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customer_name": "Talleres Ebro S.L.",
  "customer_tax_id": "B12345674",
  "document_number": "A-2026-0187",
  "issue_date": "2026-10-05",
  "description": "Mantenimiento web octubre",
  "vat_lines": [
    {
      "rate": "21",
      "base": "800.00",
      "vat": "168.00"
    }
  ],
  "irpf_rate": "15",
  "irpf_amount": "120.00"
}
'

import requests

url = "https://api.melso.ai/v1/companies/{company_id}/income"

payload = {
    "customer_name": "Talleres Ebro S.L.",
    "customer_tax_id": "B12345674",
    "document_number": "A-2026-0187",
    "issue_date": "2026-10-05",
    "description": "Mantenimiento web octubre",
    "vat_lines": [
        {
            "rate": "21",
            "base": "800.00",
            "vat": "168.00"
        }
    ],
    "irpf_rate": "15",
    "irpf_amount": "120.00"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customer_name: 'Talleres Ebro S.L.',
    customer_tax_id: 'B12345674',
    document_number: 'A-2026-0187',
    issue_date: '2026-10-05',
    description: 'Mantenimiento web octubre',
    vat_lines: [{rate: '21', base: '800.00', vat: '168.00'}],
    irpf_rate: '15',
    irpf_amount: '120.00'
  })
};

fetch('https://api.melso.ai/v1/companies/{company_id}/income', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "customer_name": "<string>",
  "issue_date": "2023-12-25",
  "vat_lines": [
    {
      "rate": "<string>",
      "base": "121.00",
      "vat": "121.00"
    }
  ],
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "subtotal": "121.00",
  "vat_amount": "121.00",
  "total": "121.00",
  "version": 123,
  "created_at": "2023-11-07T05:31:56Z",
  "customer_tax_id": "<string>",
  "customer_country": "ES",
  "document_number": "<string>",
  "operation_date": "2023-12-25",
  "description": "<string>",
  "vat_treatment": "taxable",
  "irpf_rate": "<string>",
  "irpf_amount": "121.00",
  "file_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "currency": "<string>",
  "exchange_rate": "<string>",
  "source": "upload",
  "review_reasons": [
    "<string>"
  ],
  "updated_at": "2023-11-07T05:31:56Z"
}

{
  "error": "lines[0].vat_rate must be 21, 10, 4 or 0",
  "code": "invalid_invoice",
  "request_id": "req_01JAB3K9X2"
}

{
  "error": "invalid token",
  "code": "unauthorized",
  "request_id": "req_01JAB3K9X2"
}

{
  "error": "Review and approve in the authenticated web application",
  "code": "person_required",
  "request_id": "req_01JAB3K9X2"
}

{
  "error": "The tax return changed or is not ready for approval",
  "code": "version_conflict",
  "request_id": "req_01JAB3K9X2"
}