---
title: "Register an application"
method: POST
path: "/{tenant}/applications"
tags: ["ThemeApplications"]
---

# Register an application

`POST /{tenant}/applications`

Registers an external application (a self-hosted portal, a mobile app) as a brandable instance.

## Request body

- ApplicationInput — unresolved $ref

## Response `201`

The registered application.

- Application — unresolved $ref

## Other responses

- `400` — unresolved $ref
- `401` — unresolved $ref
- `403` — unresolved $ref
- `404` — unresolved $ref
- `500` — unresolved $ref

## Changes

- **2026-07-07** `e1e9983e1809` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/sphereon-opensource/apis/theme-api/changes/:tenant/applications/post.md)

---

[API](https://skmtc.dev/sphereon-opensource/apis/theme-api.md) · [All operations](https://skmtc.dev/sphereon-opensource/apis/theme-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sphereon-opensource/theme-api/revisions/a2197538ab3a/schema)