---
title: "Auth Regional Endpoint"
method: GET
path: "/api/auth/regional_endpoint"
---

# Auth Regional Endpoint

`GET /api/auth/regional_endpoint`

Pre-login region probe for omicos-core (the Rust sidecar on the
user's machine).

Returns the **default** cloud_base (auth.omicos.cn — the 备案
region, where most signups land) plus the full list of supported
auth hosts. omicos-core hits this once at startup if it has no
persisted config; after the user actually logs in, the auth
response carries the user's home cloud_base (per their
`users.region`) and the sidecar switches to that for everything
downstream.

No auth required — the response is identical across users and
leaks no PII; it's just service discovery.

Response shape (CN-only after the region consolidation):
    { "default_cloud_base": "https://auth.omicos.cn",
      "supported":          ["https://auth.omicos.cn"] }

## Response `200`

Successful Response

- object

---

[API](https://skmtc.dev/omicos/apis/omicos-server.md) · [All operations](https://skmtc.dev/omicos/apis/omicos-server/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/omicos/omicos-server/revisions/a00b94573ffe/schema)