---
title: "Add an entry to the blacklist"
method: POST
path: "/blacklist"
tags: ["Blacklist API"]
---

# Add an entry to the blacklist

`POST /blacklist`

## Request body

- BlacklistAdd
  - `data` string, required — A valid IBAN to blacklist.

## Response `200`

Request successfully processed

- BlacklistObject
  - `id` string — Blacklist item id
  - `type` string — Type of the entry, e.g. iban
  - `data` string — IBAN

## Other responses

- `401` — Authentication failed API key missing or not valid
- `403` — Forbidden Access blocked
- `404` — Product not enabled or Not found The requested object does not exist on the server
- `422` — Validation failed Something is wrong with the user input
- `500` — An internal server problem occurred

---

[API](https://skmtc.dev/xs2a/apis/xs2a-api.md) · [All operations](https://skmtc.dev/xs2a/apis/xs2a-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/xs2a/xs2a-api/revisions/ae5fbc5feee3/schema)