Merge pull request #275 from apollographql/add-claude-to-auth-guide

docs: Add instructions for Goose as an LLM client on Auth guide

Author: mabuyo

docs/source/guides/auth-auth0.mdx

@@ -225,6 +225,30 @@ Before continuing, you need to set up the Auth0 client to accept an additional c
 
 </ExpansionPanel>
 
+### Step 5: Make requests with an MCP Client (Goose)
+
+We'll use [Goose](https://block.github.io/goose/) as our MCP Client. Goose allows you to choose between many different LLMs and provides some built-in functionality for connecting to MCP servers, called [Extensions](https://block.github.io/goose/docs/getting-started/using-extensions).
+
+[Install the Goose CLI](https://block.github.io/goose/docs/getting-started/installation), following the instructions for your operating system. Set up the LLM provider of your choice with `goose configure` --> **Configure Providers**. Each provider has its own set of instructions, rate limiting and pricing.
+
+Then, continue with the following steps:
+
+1. In your terminal, run `goose configure`.
+1. Select or enter the following answers at the prompts:
+
+| Prompt                                                      | Answer                                     |
+| ----------------------------------------------------------- | ------------------------------------------ |
+| "What would you like to configure?"                         | "Add Extension"                            |
+| "What type of extension would you like to add?"             | "Command Line Extension"                   |
+| "What's the name of this extension?"                        | "mcp-auth-quickstart"                      |
+| "What command should be run?"                               | `npx mcp-remote http://127.0.0.1:5000/mcp` |
+| Other prompts (timeout, description, environment variables) | Use the default values                     |
+
+1. To start Goose, type `goose`. This will open a browser window and send you through the auth flow.
+1. Log in to your Auth0 instance and authorize your MCP server to gain access to your tools.
+1. In Goose, ask "What astronauts are in space right now?". This question is similar to the `GetAstronautsCurrentlyInSpace` operation from earlier, which fails as unauthenticated without the proper token.
+1. Goose will select the `GetAstronautsCurrentlyInSpace` tool and respond with information about the astronauts found in TheSpaceDevs.
+
 ## Troubleshooting
 
 ### Common Issues