Allowlist OAuth redirect URI for KACUM Control Center

[kacum-dev]

Request

Please allowlist this OAuth redirect URI for Dynamic Client Registration and authorize:

https://kacum.com/api/client-portal/hostinger-oauth/callback

Context

KACUM Control Center (https://kacum.com) is a multi-user client portal where customers connect their own Hostinger account so KACUM can synchronize and manage only the infrastructure assigned to that customer, including VPS, domains, DNS, and hosting resources.

We want customers to sign in and consent through Hostinger OAuth instead of generating, copying, or sharing personal API tokens.

Dynamic Client Registration against https://auth.hostinger.com/api/external/v1/oauth-server/register currently returns:

{error:invalid_redirect_uri}

The OAuth 2.0 + PKCE implementation is complete and works with loopback redirect URIs. Production is blocked only by the public redirect URI allowlist.

Client details

• App name: KACUM Control Center
• Production URL: https://kacum.com
• Redirect URI: https://kacum.com/api/client-portal/hostinger-oauth/callback
• Grant types: authorization_code, refresh_token
• token_endpoint_auth_method: none
• PKCE: S256
• Scope: mcp:use

Thank you.