| Method | Use |
|---|---|
| Email/password | sdk.platform.auth.login |
| API key | X-API-Key header on REST and MCP |
| OAuth 2.1 device code | Cursor plugin — OAUTH_DEVICE_FLOW.md |
| Anonymous project | Plugin quick starts — limited tier |
Scopes: API keys may set service_caps — API_KEYS_AND_SCOPES.md · FIELD_ACCESS_POLICY.md