> ## Documentation Index > Fetch the complete documentation index at: https://gomodel-feat-guardrails.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Playground > Try any model through the gateway from the dashboard and inspect the exact request and response JSON. The **Playground** page (`/admin/dashboard/playground`) sends requests through the gateway's public API with your dashboard key, so every call is routed, logged, and metered exactly like a client's request. Pick an endpoint (`/v1/chat/completions`, `/v1/responses`, or `/v1/messages`), a model from the inventory or any alias, or virtual model by name, and whether to stream; build the conversation from editable, reorderable System, User, and Assistant messages; and send a prompt. The JSON panel on the right shows the request body as it will be sent (updated live as you edit) and the last response with its status, latency, and token usage — streamed responses are assembled into the same shape a non-streaming call returns. Requests are subject to the same budgets, rate limits, guardrails, and audit logging as any other client of the gateway. ## User path scoping Virtual models can be restricted to specific `user_paths`, and Playground requests authenticated with the master key can scope themselves to one of those paths with the **User path** field next to the model picker. When you select a model whose policy declares `user_paths`, the field is prefilled with the first entry; you can edit it before sending. On send, the value is carried on the user-path request header, exactly as an external client would send it, so the gateway records the path on the request snapshot and grants access to models restricted to that path — a request without the header is denied for those models. The header name is `X-GoModel-User-Path` by default. If you customize it through `USER_PATH_HEADER` (or `server.user_path_header`), the dashboard reads the effective name from `GET /admin/runtime/config` and sends the scoped path under that header, so no extra dashboard configuration is needed. GoModel dashboard Playground page with the Messages endpoint selected, a model picker, System, User, and Assistant message cards, a prompt composer, and the request JSON panel on the right