MCP Wait Timer Server
About
A simple tool to pause execution for a specified number of seconds.
Details
- Author
- 199-bio
- Categories
- Productivity, Automation, Other
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Setup
Install MCP Wait Timer Server in your MCP client (Claude Desktop, Cursor, Windsurf, and others).
Repository: https://github.com/199-bio/mcp-wait-timer
Follow the installation instructions in the repository README, then restart your MCP client.
A simple tool to pause execution for a specified number of seconds.
An MCP (Model Context Protocol) server providing a simplewaittool.
Watch the demo video:https://www.youtube.com/watch?v=TaF_j9wrWVw
This server exposes a single tool,wait, designed to introduce deliberate pauses into workflows executed by MCP clients (e.g., Cline, Claude Desktop, Cursor).
MCP clients and the AI models driving them often operate sequentially. After executing a command or action (like a web request, file operation, or API call), the model might proceed to the next step immediately. However, some actions require additional time to fully complete their effects (e.g., background processes finishing, web pages fully rendering after JavaScript execution, file system propagation).
Since the model cannot always reliably detect when these asynchronous effects are complete, it might proceed prematurely, leading to errors or incorrect assumptions in subsequent steps.
This server provides awaittool that allows the user or the AI prompt to explicitly instruct the client to pause for a specified duration before continuing. This ensures that time-dependent operations have sufficient time to complete.
- Description:Pauses execution for a specified number of seconds.
- Input Parameter:
- duration_seconds(number, required): The duration to wait, in seconds. Must be a positive number.
- Web Automation:Ensure dynamic content loads or scripts finish executing after page navigation or element interaction.
Example Prompt: "Navigate to example.com, fill the login form, click submit, then wait for 5 seconds and capture a screenshot."
Example Prompt: "Run 'npm run build', wait for 15 seconds, then check if the 'dist/app.js' file exists."
This server requires Node.js (version 16 or higher).
Add the following JSON block within the"mcpServers": {}object in your client's configuration file. Choose the file corresponding to your client and operating system:
"wait-timer": { "command": "npx", "args": ["mcp-wait-timer"], "env": {}, "disabled": false, "autoApprove": [] }
- macOS:~/Library/Application Support/Claude/claude_desktop_config.json
- Windows:%APPDATA%\Claude\claude_desktop_config.json
- Linux:~/.config/Claude/claude_desktop_config.json(Path may vary slightly)
VS Code Extension (Cline / "Claude Code"):
- macOS:~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Windows:%APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json
- Linux:~/.config/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Global:~/.cursor/mcp.json
- Project-Specific: Create a file at.cursor/mcp.jsonwithin your project folder.
- Consult the specific client's documentation for the location of its MCP configuration file. The JSON structure shown in the "Configuration Block" above should generally work.
After adding the configuration block and saving the file,fully restartyour MCP client application for the changes to take effect. The first time the client starts the server,npxwill automatically download themcp-wait-timerpackage if it's not already cached.
Once installed and enabled, you can instruct your MCP client:
"Please wait for 10 seconds before proceeding."
The client's AI model should recognize the intent and call thewaittool withduration_seconds: 10.
This tool was developed as part of the initiatives at199 Longevity, a group focused on extending the frontiers of human health and longevity.
Learn more about our work in biotechnology at199.bio.
This project is licensed under the MIT License - see theLICENSEfile for details.
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