Homologation Roadmap - Credit Pay
Summary
1. Debt inquiry
You can query the debt later to retrieve information or track its current status:
Request
Path params
| Field | Type | Description | Max. Char. |
|---|---|---|---|
requester_identifier_key * | string | Client tracking key for the request | UUID |
Response
Response Body
{
"credit_operation_key":"0773a1b1-675a-4a10-80a2-a10308c7281e",
"issue_amount":15367.14,
"origin_key":"0773a1b1-675a-4a10-80a2-a10308c7281e",
"total_iof":367.14,
"assigned_at":null,
"disbursement_start_date":"2026-03-23",
"disbursement_end_date":"2026-03-23",
"issue_date":"2026-03-23",
"requester_identifier_key":"494598fd200",
"installments":[
{
"business_due_date":"2026-06-08",
"due_date":"2026-06-06",
"calendar_days":75,
"due_interest":0,
"due_principal":15367.14,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":2432.7,
"principal_amortization_amount":0,
"tax_amount":0,
"total_amount":2432.7,
"workdays":50,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"c0c716ca-1645-4cf6-bb6b-438a69693d79",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":15367.14,
"original_pre_fixed_amount":2432.7,
"original_principal_amortization_amount":0,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":1,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-07-06",
"due_date":"2026-07-06",
"calendar_days":30,
"due_interest":399,
"due_principal":15367.14,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":1503.02,
"principal_amortization_amount":929.68,
"tax_amount":8,
"total_amount":2432.7,
"workdays":21,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"46d7a106-004f-4f64-910c-bc9e2c010845",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":15367.14,
"original_pre_fixed_amount":1503.02,
"original_principal_amortization_amount":929.68,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":2,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-08-06",
"due_date":"2026-08-06",
"calendar_days":31,
"due_interest":0,
"due_principal":14437.46134964,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":1045.5,
"principal_amortization_amount":1387.2,
"tax_amount":15.47,
"total_amount":2432.7,
"workdays":23,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"af84c132-7311-412f-a5e4-a827047fda52",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":14437.46,
"original_pre_fixed_amount":1045.5,
"original_principal_amortization_amount":1387.2,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":3,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-09-08",
"due_date":"2026-09-06",
"calendar_days":31,
"due_interest":0,
"due_principal":13050.26167997,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":945.05,
"principal_amortization_amount":1487.65,
"tax_amount":20.37,
"total_amount":2432.7,
"workdays":21,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"8517161a-408a-400d-9a27-e4e54c87d9ec",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":13050.26,
"original_pre_fixed_amount":945.05,
"original_principal_amortization_amount":1487.65,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":4,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-10-06",
"due_date":"2026-10-06",
"calendar_days":30,
"due_interest":0,
"due_principal":11562.6067212,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":809.38,
"principal_amortization_amount":1623.32,
"tax_amount":26.22,
"total_amount":2432.7,
"workdays":21,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"8c14e19c-a70e-4b0b-b0b5-d655f6136537",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":11562.61,
"original_pre_fixed_amount":809.38,
"original_principal_amortization_amount":1623.32,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":5,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-11-06",
"due_date":"2026-11-06",
"calendar_days":31,
"due_interest":0,
"due_principal":9939.28802441,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":719.76,
"principal_amortization_amount":1712.94,
"tax_amount":32.03,
"total_amount":2432.7,
"workdays":21,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"4a880580-5873-4c12-8d32-3cf95b416417",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":9939.29,
"original_pre_fixed_amount":719.76,
"original_principal_amortization_amount":1712.94,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":6,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-12-07",
"due_date":"2026-12-06",
"calendar_days":30,
"due_interest":0,
"due_principal":8226.34916112,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":575.84,
"principal_amortization_amount":1856.86,
"tax_amount":39.28,
"total_amount":2432.7,
"workdays":19,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"94db881b-0054-4c73-b969-89c37c082f39",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":8226.35,
"original_pre_fixed_amount":575.84,
"original_principal_amortization_amount":1856.86,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":7,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2027-01-06",
"due_date":"2027-01-06",
"calendar_days":31,
"due_interest":0,
"due_principal":6369.49243064,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":461.25,
"principal_amortization_amount":1971.45,
"tax_amount":46.72,
"total_amount":2432.7,
"workdays":21,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"d32e9f02-426d-4861-ad5c-fe541d2a4b94",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":6369.49,
"original_pre_fixed_amount":461.25,
"original_principal_amortization_amount":1971.45,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":8,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2027-02-10",
"due_date":"2027-02-06",
"calendar_days":31,
"due_interest":0,
"due_principal":4398.04366699,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":318.49,
"principal_amortization_amount":2114.21,
"tax_amount":55.48,
"total_amount":2432.7,
"workdays":22,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"0c6ef3ba-6d82-45e4-9f3f-9f9a89207f68",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":4398.04,
"original_pre_fixed_amount":318.49,
"original_principal_amortization_amount":2114.21,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":9,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2027-03-08",
"due_date":"2027-03-06",
"calendar_days":28,
"due_interest":0,
"due_principal":2283.83070016,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":148.87,
"principal_amortization_amount":2283.83,
"tax_amount":65.17,
"total_amount":2432.7,
"workdays":18,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"470dd63a-89eb-4c6c-8cd6-f570d469aa35",
"installment_status":"created",
"installment_type":"principal",
"original_due_principal":2283.83,
"original_pre_fixed_amount":148.87,
"original_principal_amortization_amount":2283.83,
"paid_amount":0,
"original_total_amount":2432.7,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":10,
"paid_at":null,
"updated_at":null,
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
}
],
"first_due_date":"2026-06-06",
"requester_key":"3e69b448-9afb-4aef-9c0d-0a3059350d80",
"original_total_iof":null,
"contract_number":"ANT000000787",
"credit_operation_status_enumerator":"waiting_signature",
"operation_type_enumerator":"settlement_refinancing",
"disbursement_date":"2026-03-23",
"issuer_name":"Alan Mathison Turing",
"issuer_document_number":"47003534819",
"external_contract_fees":[
{
"amount_type":"absolute",
"fee_amount":0,
"tax_amount":0,
"irrf_amount":0,
"amount":0,
"pis_amount":0,
"amount_released":0,
"fee_type":"tac",
"cofins_amount":0,
"csll_amount":0,
"description":null,
"net_fee_amount":0,
"rebate_account":null
}
],
"cet":7.51,
"annual_cet":138.34,
"final_disbursement_amount":4885.12,
"number_of_installments":10,
"disbursement_issue_amount":15000,
"prefixed_interest_rate":{
"annual_rate":1.252191589,
"daily_rate":0.0022578334,
"interest_base":{
"enumerator":"calendar_days",
"year_days":360
},
"monthly_rate":0.07
},
"fine_configuration":{
"contract_fine_rate":0.02,
"fine_delay_rate":{
"annual_rate":4.35025011,
"daily_rate":0.0046696,
"interest_base":{
"enumerator":"calendar_days",
"year_days":360
},
"monthly_rate":0.15
}
},
"attached_documents":[
{
"document_key":"494598fd-c226-4332-a500-591ae3884673",
"document_url":"https://storage.googleapis.com/sandbox-doc-api/documents/494598fd-c226-4332-a500-591ae3884673/3d684e68e7df4e557d0480d98e26be92.jpg",
"signature_url":null,
"document_type":"document_identification",
"signature_required":false,
"signed":false
},
{
"document_key":"494598fd-c226-4332-a500-591ae3884673",
"document_url":"https://storage.googleapis.com/sandbox-doc-api/documents/494598fd-c226-4332-a500-591ae3884673/3d684e68e7df4e557d0480d98e26be92.jpg",
"signature_url":null,
"document_type":"document_identification_back",
"signature_required":false,
"signed":false
},
{
"document_key":"cb97f9f5-9b58-4a55-826f-8698f2b97230",
"document_url":"https://storage.googleapis.com/sandbox-doc-api-private/documents/cb97f9f5-9b58-4a55-826f-8698f2b97230/CASTELLOBNPL-ALAN_MATHISON_TURING-CCB-ANT000000787-20260408055239.pdf",
"signature_url":null,
"document_type":"ccb_pre_price_days",
"signature_required":true,
"signed":false
}
],
"related_parties":[
{
"related_party_key":"70f0bc84-98e0-4d4c-9ea7-ed783746ba5c",
"role_type":"issuer",
"person_type":"natural",
"name":"Alan Mathison Turing",
"email":"",
"individual_document_number":"47003534819"
}
],
"base_iof":308.75,
"additional_iof":58.39,
"assignment_amount":15444.19,
"created_at":"2026-04-08T05:52:38Z",
"total_prefixed_amount":8959.86
}
Response example (refinancing — refinanced_credit_operations)
For a refinancing credit operation, the GET response includes operation_type_enumerator: settlement_refinancing and the array refinanced_credit_operations, which lists the prior operation(s) being settled by this new contract. The example below uses final_disbursement_amount: 0 (no cash payout to the borrower—the new operation is sized to settle the prior obligation); see the note on final_disbursement_amount in this section.
The payload below is a sandbox / homologation sample. UUIDs, contract numbers, monetary amounts, calendar dates, and document URLs are illustrative only. In production, rely on the field names and types, not on these literal values.
Response Body (refinancing)
{
"credit_operation_key":"7c106ebb-42b5-4f9d-afdb-d3cc7c7883d1",
"issue_amount":101.81,
"origin_key":"7c106ebb-42b5-4f9d-afdb-d3cc7c7883d1",
"total_iof":0.91,
"assigned_at":null,
"disbursement_start_date":"2026-04-15",
"disbursement_end_date":"2026-04-15",
"issue_date":"2026-04-15",
"requester_identifier_key":"7014211f-0d09-4db3-957a-c916903ec4d3",
"installments":[
{
"business_due_date":"2026-05-15",
"due_date":"2026-05-15",
"calendar_days":30,
"due_interest":0,
"due_principal":101.81,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":8.14,
"principal_amortization_amount":31.43,
"tax_amount":0.08,
"total_amount":39.57,
"workdays":20,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"ffd81916-ce62-4b32-82b8-3c7cb7afde0a",
"installment_status":"opened",
"installment_type":"principal",
"original_due_principal":101.81,
"original_pre_fixed_amount":8.14,
"original_principal_amortization_amount":31.43,
"paid_amount":0,
"original_total_amount":39.57,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":1,
"paid_at":null,
"updated_at":"2026-04-16T01:30:36",
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-06-15",
"due_date":"2026-06-15",
"calendar_days":31,
"due_interest":0,
"due_principal":70.38415074,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":5.83,
"principal_amortization_amount":33.74,
"tax_amount":0.17,
"total_amount":39.57,
"workdays":20,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"4b41315b-d685-4646-b57f-107c00bf36e0",
"installment_status":"opened",
"installment_type":"principal",
"original_due_principal":70.38,
"original_pre_fixed_amount":5.83,
"original_principal_amortization_amount":33.74,
"paid_amount":0,
"original_total_amount":39.57,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":2,
"paid_at":null,
"updated_at":"2026-04-16T01:30:36",
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
},
{
"business_due_date":"2026-07-15",
"due_date":"2026-07-15",
"calendar_days":30,
"due_interest":0,
"due_principal":36.63949004,
"fine_amount":0,
"has_interest":true,
"post_fixed_amount":0,
"pre_fixed_amount":2.93,
"principal_amortization_amount":36.64,
"tax_amount":0.27,
"total_amount":39.57,
"workdays":22,
"accrual_reference_date":null,
"advanced_paid_amount":0,
"bank_slip_key":null,
"digitable_line":null,
"installment_key":"920af811-9d4c-4886-9095-73cc6f546f02",
"installment_status":"opened",
"installment_type":"principal",
"original_due_principal":36.64,
"original_pre_fixed_amount":2.93,
"original_principal_amortization_amount":36.64,
"paid_amount":0,
"original_total_amount":39.57,
"qr_code_key":null,
"qr_code_url":null,
"renegotiation_proposal_key":null,
"total_accrual_amount":0,
"total_paid_amount":0,
"installment_number":3,
"paid_at":null,
"updated_at":"2026-04-16T01:30:36",
"principal_amortization_payment_amount":0,
"prefixed_interest_payment_amount":0
}
],
"first_due_date":"2026-05-15",
"requester_key":"3e69b448-9afb-4aef-9c0d-0a3059350d80",
"original_total_iof":null,
"contract_number":"0000667215/NDR",
"credit_operation_status_enumerator":"opened",
"operation_type_enumerator":"settlement_refinancing",
"disbursement_date":"2026-04-15",
"issuer_name":"NOME DO REPRESENTANTE",
"issuer_document_number":"31057466093",
"external_contract_fees":[
{
"amount_type":"absolute",
"fee_amount":0,
"tax_amount":0,
"irrf_amount":0,
"amount":0,
"pis_amount":0,
"amount_released":0,
"fee_type":"tac",
"cofins_amount":0,
"csll_amount":0,
"description":null,
"net_fee_amount":0,
"rebate_account":null
}
],
"cet":8.62,
"annual_cet":169.6,
"final_disbursement_amount":0,
"number_of_installments":3,
"disbursement_issue_amount":100.9,
"prefixed_interest_rate":{
"annual_rate":1.5181701168,
"daily_rate":0.0025686614,
"interest_base":{
"enumerator":"calendar_days",
"year_days":360
},
"monthly_rate":0.08
},
"fine_configuration":{
"contract_fine_rate":0.02,
"fine_delay_rate":{
"annual_rate":0.12682503,
"daily_rate":0.00032719,
"interest_base":{
"enumerator":"calendar_days_365",
"year_days":365
},
"monthly_rate":0.01
}
},
"attached_documents":[
{
"document_key":"a3749ce5-750a-4a1a-a22c-5966e9d13885",
"document_url":"https://storage.googleapis.com/sandbox-doc-api-private/documents/a3749ce5-750a-4a1a-a22c-5966e9d13885/CASTELLOBNPL-NOME_DO_REPRESENTANTE-CCB-0000667215-20260416013033.pdf",
"signature_url":"https://storage.googleapis.com/sandbox-doc-api-private/documents/a3749ce5-750a-4a1a-a22c-5966e9d13885/CASTELLOBNPL-NOME_DO_REPRESENTANTE-CCB-0000667215-20260416013033_signed.pdf",
"document_type":"ccb_pre_price_days",
"signature_required":true,
"signed":true
}
],
"related_parties":[
{
"related_party_key":"bb7ab0e0-04f5-4814-901f-e44a6eb0b243",
"role_type":"issuer",
"person_type":"natural",
"name":"NOME DO REPRESENTANTE",
"email":"2210@test.com",
"individual_document_number":"31057466093"
}
],
"base_iof":0.52,
"additional_iof":0.39,
"assignment_amount":102.42,
"created_at":"2026-04-16T01:30:33Z",
"total_prefixed_amount":16.9,
"refinanced_credit_operations":[
{
"refinanced_credit_operation_key":"a0c66c34-404a-4391-b0d1-7c109329b808",
"refinanced_contract_number":"0000667214/NDR",
"due_balance":100.9,
"due_balance_reference_date":"2026-04-15",
"original_deadline":91,
"refinanced_credit_operation_status_enumerator":"pending_payment",
"updated_at":"2026-04-16T01:30:33",
"created_at":"2026-04-16T01:30:33"
}
]
}
refinanced_credit_operationsEach object describes a prior credit operation included in this refinancing: refinanced_credit_operation_key and refinanced_contract_number identify it; due_balance and due_balance_reference_date are the payoff context used when structuring the new contract; refinanced_credit_operation_status_enumerator is the status of that refinanced operation at the time of the inquiry (not necessarily the new operation’s status). original_deadline refers to the prior operation’s term where applicable.
business_due_date (installments)In each object under installments[], pay attention to business_due_date: it is the installment due date on the business-day calendar (working / banking days). It may match due_date or differ when the natural calendar date falls on a non-business day—use both fields together when reconciling schedules and cut-offs.
operation_type_enumeratorWhen operation_type_enumerator is settlement_refinancing, the credit operation is a refinancing debt—that is, it is issued under the refinancing flow (settling prior credit operations). Use this field to distinguish refinancing debts from other operation types.
final_disbursement_amountfinal_disbursement_amount is the effective disbursement of the new credit operation. When there is no net amount paid to the borrower (no cash payout from the new loan), the platform does not rely on a separately informed disbursement: it computes the due balance (payoff) of the refinanced loan(s), and that amount is used as the disbursed amount of the new loan—the new operation is sized to settle the prior obligation.
2. Renegotiation — Batch simulation
Overview
Before creating a proposal, you can simulate batch renegotiation values for operations. The simulation shows affected installments, discounts, and the total amount due across multiple operations.
When amortization_type is present_amount, send only installment_key on each installment in operations[].installments[] for simulation. Per-installment paid_amount and discount_amount are not used on batch_proposal_simulation—they are required on POST /renegotiation/batch_proposal (see §3).
Batch renegotiation can only include operations from the same issuer and the same integration key. There is a limit of 50 operations per batch renegotiation.
Request
The discount_amount and discount_percentage fields must not be sent together in the same payload (root level).
At the root, discount_amount and discount_percentage are mutually exclusive global discount options for the simulation payload. Per-installment paid_amount and discount_amount are documented under POST /renegotiation/batch_proposal only.
Request Body
{
"amortization_type": "present_amount",
"reference_date": "2026-04-08",
"discount_percentage": 0.0,
"operations": [
{
"debt_key": "1baea8a0-0fca-4f7c-8857-a227d4da72f8",
"installments": [
{
"installment_key": "ca5741c7-99a2-42e7-92a1-9328a36e4e88"
}
]
},
{
"debt_key": "2cbfb9b1-1fdb-5f8d-9967-b338e5eb83f9",
"installments": [
{
"installment_key": "2ef25ed8-7124-44f5-9e3d-1d1a7196166e"
}
]
}
]
}
Response
Example response (batch_proposal_simulation)
batch_proposal_simulation){
"batch_proposal_key": "429fd784-e13e-47a1-ad9f-291209e0e621",
"discount_percentage": 0,
"discount_amount": 20,
"amortization_type": "present_amount",
"payment_amount": 78389.55,
"requester_name": "Castello (BNPL)",
"requester_key": "3e69b448-9afb-4aef-9c0d-0a3059350d80",
"issuer_name": "Alan Mathison Turing",
"reference_date": "2026-04-11",
"issuer_document_number": "82744088021",
"operations": [
{
"requester_key": "3e69b448-9afb-4aef-9c0d-0a3059350d80",
"contract_number": "TEST00790",
"payment_amount": 78389.55,
"discount_amount": 20,
"origin_key": null,
"affected_installments": [
{
"installment_key": "24b5deae-304e-4773-9b25-e42dbd450241",
"due_date": "2026-05-10",
"principal_amount": 73107.75725415,
"interest_amount": 10580.11274585,
"fine_amount": 0,
"total_amount": 83687.87,
"present_amount": 78389.55,
"paid_amount": 78389.55,
"principal_amortization_payment_amount": 78048.3,
"prefixed_interest_payment_amount": 341.25,
"fine_payment_amount": 0,
"discount_amount": 0
}
],
"remaining_installments": [
{
"installment_key": "2b1d9423-4dab-44b3-bf8c-efc8433176dd",
"due_date": "2026-06-10",
"principal_amount": 73096.23,
"interest_amount": 10591.64,
"fine_amount": 0,
"total_amount": 83687.87
}
],
"debt_key": "388c47fa-6c6c-4d2b-8f00-ccc2d571fcb0"
}
]
}
Body parameters
| Field | Type | Description | Max length |
|---|---|---|---|
amortization_type* | string | Amortization type | Amortization type values |
reference_date* | string | Reference date for present value (must be D+1) | 10 |
discount_percentage | float | Discount percentage on present value ((1 − percentage) × present value) | 10 |
discount_amount | float | Discount amount on present value | 10 |
force_due_date | boolean | Optional. When true, installments whose reference_date falls within the shift window [due_date, business_due_date] (business_due_date > due_date, e.g. weekend/holiday rollover) are priced at face value using the installment's own due_date as reference — no accrued interest, no delay fine. Default false. See Force due date behavior. | — |
operations* | array | Operations to renegotiate | Operations object |
Operations object
| Field | Type | Description | Max length |
|---|---|---|---|
debt_key* | string | Unique credit operation key (DEBT-KEY) | UUID |
installments* | array | Installments to renegotiate | Installments object |
Installments object
| Field | Type | Description | Max length |
|---|---|---|---|
installment_key* | string | Installment key | UUID |