A hosted connection between Gemini CLI and many third-party services, such as email, chat, payments, commerce, and project-management apps, using sign-in authorization.

Use it to list connected integrations, find available actions, read their API instructions, and execute them.

It avoids installing separate connectors and provides a way to discover, read, and run supported actions across connected services.

one — Plugin for Gemini CLI by withoneai/mcp

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/withoneai/mcp

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/withoneai/mcp/gemini-extension/github.svg)](https://agentmods.dev/plugins/withoneai/mcp/gemini-extension)

Your own site

<a href="https://agentmods.dev/plugins/withoneai/mcp/gemini-extension"><img src="https://agentmods.dev/badge/plugins/withoneai/mcp/gemini-extension/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/withoneai/mcp/gemini-extension"><img src="https://agentmods.dev/badge/plugins/withoneai/mcp/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

one scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.

The scan reads gemini-extension.json. This mod also ships 1 executable file (scripts/run-tests.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

gemini-extension.json · 14 lines

What it actually says

{
  "name": "one",
  "version": "1.2.4",
  "description": "Connect Gemini CLI to 1000+ apps (Gmail, Slack, Stripe, Shopify, HubSpot, Notion, Linear, Salesforce, QuickBooks and more) through One's hosted MCP server. Four tools: list connected integrations, search a platform's actions, read an action's real API documentation, and execute it. OAuth sign-in, nothing to install.",
  "mcpServers": {
    "one": {
      "httpUrl": "https://mcp.withone.ai/mcp",
      "oauth": {
        "enabled": true
      }
    }
  }
}

Files

What ships with it

2 files beside gemini-extension.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

13d ago Changed afed05842327
1mo ago First seen · 14 lines scan A 6663453eead0

Subscribe to this mod's changes

one is a plugin published in the GitHub repository withoneai/mcp (12 stars, last pushed 11d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-10.

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