Transaction Webhooks

The payer receives the OUT event and the payee receives the IN event. A failed transaction does not generate the payee-side IN delivery.

Events

Event	Meaning	Payload Type
`PIX_PAYMENT_IN`	Incoming Pix payment	Payment details
`PIX_PAYMENT_OUT`	Outgoing Pix payment	Payment details
`PIX_REFUND_IN`	Incoming Pix refund	Refund details
`PIX_REFUND_OUT`	Outgoing Pix refund	Refund details

Delivery Models

Scope	Endpoint Selection	`delivery_id`
ACCOUNT	Active configuration matching the event, ISPB, and account number	Not included
USER	Active subscription owned by the resolved user	Included and stable across retries

The transaction body does not contain a top-level event_type. Determine the event from txn_type and flow_direction together with the callback configuration that targets the endpoint.

Serialization Rules

Field names use snake_case.
Unset and default-valued fields are omitted.
Enum values are JSON strings such as TXN_STATUS_COMPLETED.
int64 timestamp fields are decimal JSON strings, such as "1710000000000".
Money values are decimal strings. Do not parse them as floating-point numbers.
Top-level credit_fee and debit_fee are removed before delivery.
payer.document_id and payee.document_id may be masked.
Ignore unknown fields so additive payload changes do not break your receiver.

Common Fields

Group	Fields
Parties	`payer`, `payee`
Identifiers	`txn_id`, `settlement_txn_id`, `merchant_order_id`
State	`txn_status`, `rejection_reason`, `error`, `result`
Money	`amount`, `currency`, `refunded_amount`, `refundable_amount`
Classification	`txn_type`, `payment_method`, `payment_variant`, `source_type`, `flow_type`, `flow_direction`
Context	`memo`, `request_memo`, `request_merchant_order_id`, `pix_details`
Time	`created_at`, `completed_at`
Refund only	`refund_reason_code`, `refund_reason`, `original_txn`

Party Object (Payer / Payee)

A payer or payee object may contain:

Field	Type
`name`	`string`
`document_id`	`string`
`document_type`	`enum string`
`bank_account`	`string`
`bank_account_type`	`enum string`
`bank_branch`	`string`
`bank_code`	`string`
`bank_name`	`string`

Direction-Specific Order IDs

Event	Current Behavior
`PIX_PAYMENT_IN`	`merchant_order_id` is populated from `request_merchant_order_id`.
`PIX_REFUND_IN`	The top-level refund `merchant_order_id` is omitted. `original_txn.merchant_order_id` keeps the original payment merchant order ID. `original_txn.qr_code_merchant_order_id` is omitted.
`PIX_REFUND_OUT`	The top-level refund `merchant_order_id` is retained. `original_txn.merchant_order_id` receives the original QR-code merchant order ID when available. `original_txn.qr_code_merchant_order_id` is omitted.

Payload Example

USER Delivery
ACCOUNT Delivery

{
  "delivery_id": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "payee": {
    "name": "Demo Merchant",
    "bank_account": "00012345",
    "bank_code": "12345678"
  },
  "payer": {
    "name": "Demo Payer",
    "bank_account": "00098765",
    "bank_code": "87654321"
  },
  "txn_id": "PIX-PAY-IN-001",
  "settlement_txn_id": "SET-PAY-IN-001",
  "merchant_order_id": "ORDER-IN-001",
  "request_merchant_order_id": "ORDER-IN-001",
  "txn_status": "TXN_STATUS_COMPLETED",
  "source_type": "SOURCE_TYPE_API",
  "amount": "100.00",
  "currency": "BRL",
  "txn_type": "TXN_TYPE_PAYMENT",
  "payment_method": "PAYMENT_METHOD_PIX",
  "created_at": "1710000000000",
  "completed_at": "1710000005000",
  "flow_type": "FLOW_TYPE_IN",
  "flow_direction": "FLOW_DIRECTION_IN"
}

An ACCOUNT delivery uses the same transaction object without delivery_id.

Idempotency

When delivery_id is present, use it as the primary idempotency key.
For ACCOUNT delivery, use txn_id together with the configured event type.
A duplicate event must return HTTP 200 after confirming that the original event was already accepted.

Getting started

API Reference

Events

Delivery Models

Serialization Rules

Common Fields

Party Object (Payer / Payee)

Direction-Specific Order IDs

Payload Example

Idempotency

​Events

​Delivery Models

​Serialization Rules

​Common Fields

​Party Object (Payer / Payee)

​Direction-Specific Order IDs

​Payload Example

​Idempotency

Events

Delivery Models

Serialization Rules

Common Fields

Party Object (Payer / Payee)

Direction-Specific Order IDs

Payload Example

Idempotency