1. [ Home ](/) 2. [MCP Servers Catalog](/agents/mcp-servers) 3. demo-stdio # demo-stdio local.marketplace/yopmail-mcp-server-demo-stdio v0.1.0 Published Overview How to Use Tools Name local.marketplace/yopmail-mcp-server-demo-stdio Version 0.1.0 Package npm · npx Description Demo stdio MCP server for marketplace import testing. Agents i - Claude Desktop - Claude Code - Cursor - VS Code - WindSurf - Continue.dev - Zed - Raw curl - server.json ### Claude Desktop (claude\_desktop\_config.json) [ Add to Claude Web ](https://claude.ai/download?utm_source=mcp&mcp_add=%7B%0A%20%20%20%20%22local-marketplace-yopmail-mcp-server-demo-stdio%22%3A%20%7B%0A%20%20%20%20%20%20%20%20%22command%22%3A%20%22npx%22%2C%0A%20%20%20%20%20%20%20%20%22args%22%3A%20%5B%0A%20%20%20%20%20%20%20%20%20%20%20%20%22npx%22%2C%0A%20%20%20%20%20%20%20%20%20%20%20%20%22%40modelcontextprotocol%2Fserver-filesystem%22%2C%0A%20%20%20%20%20%20%20%20%20%20%20%20%22%2Ftmp%22%0A%20%20%20%20%20%20%20%20%5D%0A%20%20%20%20%7D%0A%7D) ``` { "mcpServers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } ``` #### Add it manually 1. Open the config file. macOS: `~/Library/Application Support/Claude/claude_desktop_config.json`. Windows: `%APPDATA%\Claude\claude_desktop_config.json`. Or use **Settings → Developer → Edit Config** in the app. 2. Merge the snippet above into `mcpServers`. Keep any existing servers in place. 3. Save the file and restart Claude Desktop. ### Claude Code (CLI) ``` claude mcp add 'local-marketplace-yopmail-mcp-server-demo-stdio' -- 'npx' 'npx' '@modelcontextprotocol/server-filesystem' '/tmp' ``` #### Add it manually 1. Run the command above in your terminal — it registers this server with `claude mcp add`. Same on macOS and Windows. 2. Verify with `claude mcp list`. 3. New Claude Code sessions pick it up automatically — no restart needed. ### Cursor (~/.cursor/mcp.json) [ Add to Cursor ](cursor://anysphere.cursor-deeplink/mcp/install?name=local-marketplace-yopmail-mcp-server-demo-stdio&config=ewogICAgImxvY2FsLW1hcmtldHBsYWNlLXlvcG1haWwtbWNwLXNlcnZlci1kZW1vLXN0ZGlvIjogewogICAgICAgICJjb21tYW5kIjogIm5weCIsCiAgICAgICAgImFyZ3MiOiBbCiAgICAgICAgICAgICJucHgiLAogICAgICAgICAgICAiQG1vZGVsY29udGV4dHByb3RvY29sL3NlcnZlci1maWxlc3lzdGVtIiwKICAgICAgICAgICAgIi90bXAiCiAgICAgICAgXQogICAgfQp9) ``` { "mcpServers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } ``` #### Add it manually 1. Click **Add to Cursor** above for a one-click install. Or open the config file by hand — macOS: `~/.cursor/mcp.json`. Windows: `%USERPROFILE%\.cursor\mcp.json`. Create the file if it does not exist. 2. Merge the snippet above into `mcpServers`. 3. Restart Cursor so the new server loads. ### VS Code (.vscode/mcp.json) ``` { "servers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } ``` #### Add it manually 1. In your workspace, create `.vscode/mcp.json` if it does not exist (same path on macOS and Windows — it is relative to the project root). 2. Merge the snippet above into `servers`. 3. Reload the window: **Cmd + Shift + P** (macOS) or **Ctrl + Shift + P** (Windows) → *Developer: Reload Window*. Requires the MCP extension to be enabled. ### WindSurf (~/.codeium/windsurf/mcp\_config.json) ``` { "mcpServers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } ``` #### Add it manually 1. Open the config file. macOS: `~/.codeium/windsurf/mcp_config.json`. Windows: `%USERPROFILE%\.codeium\windsurf\mcp_config.json`. Create it if missing. 2. Merge the snippet above into `mcpServers`. 3. Restart WindSurf. ### Continue.dev (~/.continue/config.json) ``` { "mcp": { "servers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } } ``` #### Add it manually 1. Open the config file. macOS: `~/.continue/config.json`. Windows: `%USERPROFILE%\.continue\config.json`. 2. Merge the snippet above into `mcp.servers`. 3. Reload Continue from its sidebar menu, or restart your editor. ### Zed (settings.json) ``` { "context_servers": { "local-marketplace-yopmail-mcp-server-demo-stdio": { "command": "npx", "args": [ "npx", "@modelcontextprotocol/server-filesystem", "/tmp" ] } } } ``` #### Add it manually 1. Open settings. In the app: Command Palette → *zed: open settings*. By path — macOS: `~/.config/zed/settings.json`. Windows: `%APPDATA%\Zed\settings.json`. 2. Merge the snippet above into `context_servers`. 3. Save — Zed picks it up live, no restart needed. ### Raw curl (HTTP transports) ``` # server.json declares no remote HTTP endpoint yet. ``` #### Add it manually 1. Run the command above in your terminal. It performs a `tools/list` handshake against the server. 2. Replace `$TOKEN` with your bearer token if the server requires authentication. 3. A successful response confirms the endpoint is reachable before you wire the server into a real client. ### server.json (raw) ``` { "name": "local.marketplace/yopmail-mcp-server-demo-stdio", "title": "demo-stdio", "description": "Demo stdio MCP server for marketplace import testing.", "version": "0.1.0", "packages": [ { "registryType": "npm", "identifier": "npx", "version": "0.1.0", "transport": { "type": "stdio" }, "runtimeArguments": [ { "type": "positional", "name": "arg0", "value": "-y" }, { "type": "positional", "name": "arg1", "value": "@modelcontextprotocol/server-filesystem" }, { "type": "positional", "name": "arg2", "value": "/tmp" } ] } ] } ``` ### Tools Tools will appear here once we check this server.