Upsun REST API

REST discovered

Details

URL: https://api.upsun.com
Spec: https://meta.upsun.com/openapi-spec
Docs: https://developer.upsun.com/api/rest/overview

Authentication

OAuth 2.0 oauth2 discovered

Authorization: Bearer <credential>

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.