---
title: "Check if NIF exists in system"
method: GET
path: "/api/invoices/check-nif/{nif}"
tags: ["invoices"]
---

# Check if NIF exists in system

`GET /api/invoices/check-nif/{nif}`

Check if a NIF exists in the Cliente table.

Translates VBA: Checkifnifexists

## Path parameters

- `nif` integer, required

## Headers

- `x-api-token` string, nullable

## Response `200`

Successful Response

- object

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/multigest/apis/multigest-protected-api.md) · [All operations](https://skmtc.dev/multigest/apis/multigest-protected-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/multigest/multigest-protected-api/revisions/4b44eb76b3ee/schema)