Connect other MCP clients

Any MCP client that supports Streamable HTTP can connect. Clients that support MCP OAuth sign in with LobbyStack on their own; others need an API key in a header.

Setting	Value
URL	`https://app.lobbystack.com/api/mcp`
Transport	Streamable HTTP (sometimes labeled `http`)
Authentication	OAuth, or the header `Authorization: Bearer <API key>`

The server is stateless. It supports the 2026-07-28 protocol revision and falls back to Streamable HTTP for 2025 clients. It doesn’t support the older HTTP+SSE transport, so clients that only offer SSE can’t connect.

Cursor

Add LobbyStack to ~/.cursor/mcp.json to use it in every project, or to .cursor/mcp.json in one project:

mcp.json

{
  "mcpServers": {
    "lobbystack": {
      "url": "https://app.lobbystack.com/api/mcp"
    }
  }
}

Cursor signs in with OAuth. Open Customize in Cursor’s sidebar, find lobbystack among the MCP servers, and connect it. Cursor opens LobbyStack in your browser: sign in, pick the workspace, uncheck anything Cursor shouldn’t do, and click Allow access. If the server doesn’t connect, open the Output panel (Cmd+Shift+U) and select MCP Logs.

Cursor with an API key

To use an API key instead, add an Authorization header. Cursor reads the key from the LOBBYSTACK_API_KEY environment variable:

mcp.json

{
  "mcpServers": {
    "lobbystack": {
      "url": "https://app.lobbystack.com/api/mcp",
      "headers": {
        "Authorization": "Bearer ${env:LOBBYSTACK_API_KEY}"
      }
    }
  }
}

VS Code

VS Code adds remote servers through a guided flow. Open the Command Palette (Cmd+Shift+P), run MCP: Add Server, choose HTTP (HTTP or Server-Sent Events), and paste the server URL. Enter lobbystack as the server ID, then choose Global > Copilot Global to use LobbyStack in every workspace. VS Code saves this entry in ~/.copilot/mcp-config.json:

~/.copilot/mcp-config.json

{
  "mcpServers": {
    "lobbystack": {
      "type": "http",
      "url": "https://app.lobbystack.com/api/mcp"
    }
  }
}

To share the server with your team, commit the same entry in a .mcp.json file at the root of your workspace. When VS Code asks you to sign in, LobbyStack opens in your browser. Sign in, pick the workspace, uncheck anything VS Code shouldn’t do, and click Allow access. If the server doesn’t start, run MCP: List Servers, select lobbystack and choose Show Output.

VS Code with an API key

To use an API key instead, add an Authorization header that reads the key from an environment variable:

~/.copilot/mcp-config.json

{
  "mcpServers": {
    "lobbystack": {
      "type": "http",
      "url": "https://app.lobbystack.com/api/mcp",
      "headers": { "Authorization": "Bearer ${LOBBYSTACK_API_KEY}" }
    }
  }
}

Set LOBBYSTACK_API_KEY in the environment VS Code runs in. In a remote window or a dev container, set it there.

Clients without header support

If a client can only launch local servers, run mcp-remote as the local server and let it add the header. The Claude Desktop guide shows the configuration.

Test with the MCP Inspector

The MCP Inspector CLI connects without an AI model in the loop. Without a key, it signs in with OAuth: it prints a link, you open it, sign in and allow access, and it lists the tools:

npx @modelcontextprotocol/inspector --cli https://app.lobbystack.com/api/mcp \
  --transport http --method tools/list

With an API key:

npx @modelcontextprotocol/inspector --cli https://app.lobbystack.com/api/mcp \
  --transport http \
  --header "Authorization: Bearer $LOBBYSTACK_API_KEY" \
  --method tools/list

Call a tool the same way:

npx @modelcontextprotocol/inspector --cli https://app.lobbystack.com/api/mcp \
  --transport http \
  --header "Authorization: Bearer $LOBBYSTACK_API_KEY" \
  --method tools/call --tool-name get_business

Build your own client

The official MCP SDKs connect with a few lines. In TypeScript:

import { Client, StreamableHTTPClientTransport } from "@modelcontextprotocol/client";

const client = new Client({ name: "my-app", version: "1.0.0" });
await client.connect(new StreamableHTTPClientTransport(new URL("https://app.lobbystack.com/api/mcp"), {
  requestInit: { headers: { Authorization: `Bearer ${process.env.LOBBYSTACK_API_KEY}` } },
}));

const result = await client.callTool({ name: "list_messages", arguments: { status: "open" } });
console.log(result.structuredContent);

If you’re writing code rather than an assistant, the REST API gives you the same data with plain HTTP.

Get started

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Self-hosting

Connect other MCP clients

Cursor

Cursor with an API key

VS Code

VS Code with an API key

Clients without header support

Test with the MCP Inspector

Build your own client

​Cursor

​Cursor with an API key

​VS Code

​VS Code with an API key

​Clients without header support

​Test with the MCP Inspector

​Build your own client

Cursor

Cursor with an API key

VS Code

VS Code with an API key

Clients without header support

Test with the MCP Inspector

Build your own client