SpiceDB is an open source, Google Zanzibar-inspired, database system for creating and managing security-critical application permissions.

SpiceDB

If I'm using managed SpiceDB from Authzed and I want to use the HTTP REST API, what domain do I use? I tried the swagger UI "try now" feature, but I just get back:
request:
```
POST http://gateway-alpha.authzed.com/v1/schema/read
Authorization: <redacted, token provided in ui>
```
response:
```

{
    "code": 12,
    "message": "Method Not Allowed",
    "details": []
}
```