---
title: "Store Transparenzregister credentials"
method: POST
path: "/v1/transparenzregister/credentials"
tags: ["v1"]
---

# Store Transparenzregister credentials

`POST /v1/transparenzregister/credentials`

Store username and password credentials for accessing the Transparenzregister API.
These credentials will be used for subsequent requests to retrieve company documents.
Credential names are user-scoped; the reserved name `sandbox` cannot be used.
Credentials are validated against Transparenzregister before they are persisted.

## Request body

- TransparenzregisterCredentials — Credentials for accessing the Transparenzregister API.
  - `name` string — Name to identify this set of credentials. Allows storing multiple Transparenzregister credentials per user (e.g., for different accounts or clients). Defaults to 'default' if not provided. Cannot be `sandbox` because that name is reserved for test-mode extracts. Example: "client_a"
  - `username` string, required — Username for Transparenzregister API access. Example: "compliance@example.com"
  - `password` string, password, required — Password for Transparenzregister API access.

## Response `201`

Credentials stored successfully

## Other responses

- `400` — Bad Request - Invalid parameters provided (including reserved credential name `sandbox`)
- `401` — Unauthorized - Authentication required or Transparenzregister credentials rejected
- `402` — Payment Required - Transparenzregister API access requires a paid API plan
- `409` — Conflict - Maximum number of stored credential sets reached for this account
- `500` — Internal Server Error - An error occurred while processing the request

## Changes

- **2026-06-24** `1aebcb0cae4a` — 3 info
  - added the non-success response with the status `402`
  - added the non-success response with the status `409`
  - removed the non-success response with the status `403`
- **2026-04-21** `e885b1154d9d` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/oregister/apis/openregister-api/changes/v1/transparenzregister/credentials/post.md)

---

[API](https://skmtc.dev/oregister/apis/openregister-api.md) · [All operations](https://skmtc.dev/oregister/apis/openregister-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/oregister/openregister-api/revisions/d1fcaf6d6ca0/schema)