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kuti-pe

SDK oficial de KUTI para Python. Crea sesiones de checkout, consulta el estado de un pago y verifica webhooks — sin reimplementar auth, manejo de errores ni firma HMAC a mano.

Solo servidor. Este paquete usa tu secret key (kuti_live_... / kuti_test_...). Nunca lo importes en código que se sirva al navegador.

Instalación

pip install kuti-pe

Quickstart

import os
from kuti import KutiClient

kuti = KutiClient(os.environ["KUTI_SECRET_KEY"])

session = kuti.checkout_sessions.create(
    amount={"amount": "249.90", "currency": "PEN"},
    payment_method_types=["INTEROPERABLE_QR", "BANK_TRANSFER"],
    description="Zapatillas running talla 42",
    customer={"id": "cus_01ABC"},
    # customer={"first_name": "María", "last_name": "López", "email": "maria@example.com"},
    idempotency_key=f"order-{order_id}",
)

# window.Kuti.open({ checkoutUrl: session.checkout_url, onSuccess, onFailure })

Clientes y campos personalizados

El cliente tiene la misma forma en customers.create, en el customer de un cobro y en el de una checkout session. custom_fields son los campos que el negocio definió en Ajustes → Clientes → Campos (la key de cada campo):

from kuti import CustomerInput

customer = kuti.customers.create(
    CustomerInput(
        type="INDIVIDUAL",
        first_name="María",
        last_name="López",
        document={"type": "DNI", "number": "45678912"},  # type opcional: se deduce del número
        email="maria@example.com",
        custom_fields={"grade": "quinto", "student_code": "2026-00781"},
    )
)

# En un cobro: se reutiliza el cliente por id → external_id → documento, o se crea.
kuti.payment_intents.create(
    amount={"amount": "250.00", "currency": "PEN"},
    payment_method_types=["INTEROPERABLE_QR"],
    description="Pensión marzo",
    customer={"document": {"number": "45678912"}, "custom_fields": {"grade": "sexto"}},
    idempotency_key="pension-2026-03-45678912",
)

# Editar: solo cambian las keys enviadas; None borra el valor.
kuti.customers.update(customer.id, custom_fields={"birth_date": None})

Confirmar un pago

intent = kuti.payment_intents.retrieve(payment_intent_id)
if intent.status == "SUCCEEDED":
    # fulfill order
    pass

Verificar un webhook

from flask import Flask, request
from kuti import verify_webhook_signature, KutiSignatureVerificationError
import os

app = Flask(__name__)

@app.post("/webhooks/kuti")
def kuti_webhook():
    payload = request.get_data(as_text=True)  # body CRUDO, sin json.loads antes
    try:
        verify_webhook_signature(
            payload,
            request.headers["X-Kuti-Signature"],
            request.headers["X-Kuti-Timestamp"],
            os.environ["KUTI_WEBHOOK_SECRET"],
        )
    except KutiSignatureVerificationError:
        return "Invalid signature", 400

    event = request.get_json(force=True)
    # payment.succeeded, checkout.session.completed, …
    return "", 200

Manejo de errores

Todas las excepciones de la API extienden KutiApiError (status, code, request_id, correlation_id, doc_url, details):

from kuti import KutiValidationError, KutiNotFoundError, KutiPermissionError, KutiApiError

try:
    kuti.checkout_sessions.create(...)
except KutiValidationError as err:
    print(err.details)  # [ErrorDetail(field="amount.amount", ...)]
except KutiNotFoundError:
    pass
except KutiPermissionError as err:
    if err.is_insufficient_scope:
        ...  # a la API key le falta el permiso de este endpoint (edítala en el panel o usa otra)
    elif err.is_dashboard_only:
        ...  # endpoint solo del panel de KUTI (p. ej. cambiar la cuenta bancaria)
except KutiApiError as err:
    print(err.code, err.request_id)  # úsalo al reportar un bug a soporte
    diagnosis = kuti.diagnostics.get_request(err.request_id)  # qué pasó con esa llamada

Los GET y los POST con idempotency_key se reintentan automáticamente en errores de red o 429/503. Un POST sin idempotency_key nunca se reintenta, para no duplicar un cobro.

Un enlace permanente que pagan muchas personas (curso, entrada, donación). Cada pago es un cobro normal con payment_link_id.

link = kuti.payment_links.create(
    title="Taller de Excel — sábado 10am",
    template="COURSE",
    pricing="FIXED",
    amount="120.00",
    payment_method_types=["INTEROPERABLE_QR", "BANK_TRANSFER"],
    customer_field_ids=["cfd_…"],  # [] = solo nombre, apellido y correo
    button_label="Inscribirme",
    success_message="¡Listo! Te esperamos el sábado.",
    success_button_label="Unirme al grupo",
    success_button_url="https://chat.whatsapp.com/…",
)
print(link.url)  # https://pay.kuti.pe/l/taller-de-excel

# Quienes pagaron el link
paid = kuti.payment_intents.list(payment_link_id=link.id, status="SUCCEEDED", per_page="all")

Enviar el cobro al crearlo

kuti.payment_intents.create(
    amount={"amount": "250.00", "currency": "PEN"},
    payment_method_types=["INTEROPERABLE_QR"],
    customer={"id": "cus_…"},
    send_via=["EMAIL", "WHATSAPP"],  # None = ["EMAIL"]; [] = no enviar
)

API

  • KutiClient(secret_key, base_url=None)
  • kuti.customers.create(customer, metadata=None) / retrieve(id) / update(id, ...) / list(...) / delete(id)
  • kuti.checkout_sessions.create(...) — Checkout.js
  • kuti.payment_intents.create(...) — cobro directo
  • kuti.payment_intents.list(...) — filtros status, q, customer_id, source (single | link | recurring), payment_link_id
  • kuti.payment_intents.retrieve(id)
  • kuti.payment_intents.cancel(id)
  • kuti.payment_intents.send_whatsapp(id, ...)
  • kuti.payment_links.create(...) / retrieve(id) / update(id, ...) / list(...) / activate(id) / deactivate(id) / check_slug(slug, except_id=None)
  • kuti.payment_exceptions.list(...) / resolve(id, status=..., note=None) — pagos para revisar
  • kuti.webhook_deliveries.retrieve(id) / retry(id) — cada intento con el status HTTP y lo que respondió tu servidor
  • kuti.diagnostics.get_request(request_id) / list_by_correlation_id(id) / trace_payment_intent(id) — permiso diagnostics:read
  • verify_webhook_signature(payload, signature_header, timestamp_header, secret, tolerance_seconds=300)

Requisitos

Python 3.9+ · sin dependencias de runtime.

Metadata

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