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MCP server · AI

Mcpapp

by · github.com/tanaikech/MCPApp

This text introduces the Model Context Protocol (MCP) for AI interaction, exploring Google Apps Script (GAS) as a server option. It shows feasibility with a sample but notes the lack of a GAS SDK, aiming to encourage understanding and development.

Unclaimed MIT ai
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65Good

Scored 7 days ago · breakdown

About Mcpapp

Mcpapp is an MCP server published by tanaikech in the AI category: this text introduces the Model Context Protocol (MCP) for AI interaction, exploring Google Apps Script (GAS) as a server option. It shows feasibility with a sample but notes the lack of a GAS SDK, aiming to encourage understanding and development.

The repository has 50 stars and 11 forks, with the last commit 3 months ago. Recent commit activity is the strongest signal that reported issues will get attention.

Install

From source
git clone https://github.com/tanaikech/MCPApp

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

Static checks derived from the repository 7 hours ago. Heuristics on the source, not an audit.

  • ✓README presentThe repository ships documentation.
  • ✓License declaredUsable under a stated license.
  • !Tests presentNo tests found. Behaviour changes may go unnoticed between versions.
  • !Dependencies pinnedNo lockfile. Installs can pull different code over time.
  • ✓No dynamic code executionSource scan found no eval, dynamic Function, or shell execution.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

Releases

v2.4.0v2.4.0 · 24 Jun 2026Upgraded default model to models/gemini-3.1-flash-lite and integrated GasHookManager support.
v2.3.0v2.3.0 · 12 Jun 2026Update Details 1. Added multi-channel sheet logging. When a spreadsheet ID is specified, logs are stored in the "MCP" sheet; otherwise, the "log" sheet is used. Headers `["Date", "Method", "ID", "Direction", "Message"]` are automatically…
v2.2.0v2.2.0 · 19 May 2026Improved MCP server configuration to support custom headers and enhanced request routing.
v2.1.2v2.1.2 · 12 May 2026v2.1.2 (May 12, 2026) 1. Modified
v2.1.1v2.1.1 · 12 May 2026v2.1.1 (May 12, 2026) 1. A bug was removed.

README

MCPApp

MIT License

MseeP.ai Security Assessment Badge

🚀 Special Announcement: Integrated with GASADK!

MCPApp is now fully supported and can be used directly from GASADK (Google Apps Script Agent Development Kit). GASADK provides a comprehensive framework for building powerful multi-agent systems and utilizing MCP tools seamlessly in Google Apps Script.

👉 Check out GASADK on GitHub to boost your development!

Overview

The Model Context Protocol (MCP) is an emerging standard designed to function as a universal adapter, enabling AI applications to seamlessly and securely connect with external systems and data sources. The core purpose of MCP is to provide a standardized method for AI models to request and receive contextually relevant information, which is crucial for performing complex tasks.

This repository introduces two directions:

  1. An MCP server built with Google Apps Script for Gemini CLI and other MCP clients.
  2. An MCP network built with Google Apps Script.

Sample curl commands for testing MCP server

initialize

curl -L "<YOUR_MCP_SERVER_URL>" -d '{"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"sample-mcp-client","version":"0.0.0"}},"jsonrpc":"2.0","id":0}'

tools/list

curl -L "<YOUR_MCP_SERVER_URL>" -d '{"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}}'

prompts/list

curl -L "<YOUR_MCP_SERVER_URL>" -d '{"jsonrpc":"2.0","id":1,"method":"prompts/list","params":{}}'

tools/call

curl -L "<YOUR_MCP_SERVER_URL>" -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"<TOOL_NAME>","arguments":{<ARGUMENTS_FOR_TOOL>}}}'

Licence

MIT

Author

Tanaike

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Update History

  • v1.0.0 (May 8, 2025)

    1. Initial release.

  • v1.0.1 (May 9, 2025)

    1. A bug in the logging was removed.

  • v1.0.2 (May 29, 2025)

    1. From v1.0.2, in order to use MCPApp as a library, LockService is given.

  • v2.0.0 (June 12, 2025)

    1. From v2.0.0, both the MCP client and the MCP server can be built by Google Apps Script.

  • v2.0.1 (June 18, 2025)

    1. A bug was removed.

  • v2.0.2 (June 19, 2025)

    1. A bug was removed.

  • v2.0.3 (July 1, 2025)

    1. A bug was removed.

  • v2.0.4 (July 2, 2025)

    1. A bug was removed.

  • v2.0.5 (July 31, 2025)

    1. A bug was removed.

  • v2.0.6 (August 1, 2025)

    1. "prompts/get" method was updated.

  • v2.0.7 (August 6, 2025)

    1. Starting with v2.0.7, you can now selectively enable or disable the LockService.
    • By default, this library runs with the LockService enabled. To disable it, simply modify return new MCPApp.mcpApp({ accessKey: "sample" }) to return new MCPApp.mcpApp({ accessKey: "sample", lock: false }).
    • When the LockService is disabled (lock: false), asynchronous requests from clients like the Gemini CLI may see an increase in processing speed. However, it's important to note that the maximum number of concurrent requests must not exceed 30. Please use this option with caution.

  • v2.0.8 (August 6, 2025)

    1. A bug was removed.

  • v2.0.10 (May 9, 2026)

    1. Refactored MCPApp.

  • v2.0.11 (May 9, 2026)

    1. A bug was removed.

  • v2.1.0 (May 10, 2026)

    1. A bug was removed.

  • v2.1.1 (May 12, 2026)

    1. A bug was removed.

  • v2.1.2 (May 12, 2026)

    1. Modified

  • v2.1.7 (May 15, 2026)

    1. Several bugs were removed.

  • v2.2.0 (May 19, 2026)

    1. const mcpServers = ["mcp-url-1", { "mcp-server-name": { "httpUrl": "https://mcp-url-2", "headers": { "key": "value" } } }] can be used for using MCP servers.

  • v2.3.0 (June 10, 2026)

    1. Added multi-channel sheet logging. When a spreadsheet ID is specified, logs are stored in the "MCP" sheet; otherwise, the "log" sheet is used. Headers ["Date", "Method", "ID", "Direction", "Message"] are automatically created with formatting, and sheets are initialized thread-safely under LockService lock.
    2. Enhanced error messaging by prefixing with [MCP Server Error] or [MCP Client Error] to simplify debugging.

  • v2.4.0 (June 24, 2026)

    1. Upgraded default model to models/gemini-3.1-flash-lite.
    2. Integrated GasHookManager compatibility to support BeforeTool and AfterTool hooks on the MCP server side.

TOP

README fetched from the repository 7 hours ago. The original is authoritative.

Questions

About Mcpapp

How do I install Mcpapp?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Mcpapp safe to use with an AI agent?

Its trust score is 65 out of 100 (good). It passes 3 of the 6 static security checks run so far; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Mcpapp still maintained?

Yes — the latest release is v2.4.0 (24 Jun 2026), and the last commit was 3 months ago. The repository has 50 stars.