How to connect Bench to Claude

Connect Claude Web, Desktop and Cowork to Bench MCP. Pause workflow for 10 seconds, simulate delay during test runs, and more using natural language, with authentication handled for you.

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Bench

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Bench is a benchmarking tool for automated performance measurement and analysis. It helps you quickly evaluate, compare, and track your systems or workflows.

1 Tools

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Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Bench account to Claude via Composio Connect, enabling it to pause workflow for 10 seconds, simulate delay during test runs, wait before running next benchmark, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Bench with

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Connecting Bench to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash

https://connect.composio.dev/mcp

Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Bench account

Back in Claude, ask it to connect to Bench or give it any Bench-related task.

For example, ask Claude to:

"Pause workflow for 10 seconds"
"Simulate delay during test runs"
"Wait before running next benchmark"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Bench account is ready to use.

What is the Bench Claude Connector, and what's possible with it?

The Bench MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bench environment. It provides structured and secure access to benchmarking operations, so your agent can perform actions like simulating wait times, testing response delays, and orchestrating timed pauses within automated workflows.

Simulate processing delays: Instruct your agent to initiate a sleep or wait state, mimicking real-world processing or benchmarking scenarios.
Test agent response times: Have the agent pause for a set duration to measure how your applications handle delays or timeouts.
Orchestrate workflow timing: Use controlled sleep intervals to sequence multi-step tasks or coordinate between services during automation runs.
Benchmark system latency: Trigger sleep commands to evaluate how your systems and integrations perform under different timing constraints.

Troubleshooting

1. Why does Claude not use the Composio connector for Bench?

The connector can show as connected, but Claude must use it in each Bench conversation.

Click + at the lower left of the chat, or type /.
Hover Connectors.
Turn on Composio.
Ask Claude to connect to Bench again.

2. Why does Claude show an MCP server error before Bench connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Bench.

Check that the connector URL is https://connect.composio.dev/mcp.
Connectors run from Anthropic's cloud, so your device network is usually not the problem.
Add the connector again from Customize > Connectors, then ask Claude to connect Bench.
If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Bench authorization link not work?

The Composio connector is one server. Your Bench account connects separately when Claude asks for it.

If the browser does not open, or the link expires, ask Claude to retry the Bench connection.
Composio creates a fresh Bench authorization link.
Open that link in your browser and finish the Bench sign-in.

4. Why do Bench actions fail after they worked before?

The Bench connection can expire or lose permission.

Ask Claude to inspect the Bench connection.
If the connection is unhealthy, disconnect it when Claude prompts you.
Reconnect the Bench account and retry the action.
If Claude shows a permission prompt, approve it before Claude changes data in Bench.
If the action still fails with a permission error, check that the connected account has that permission in Bench itself.

5. How do I switch to a different Bench account?

Claude can manage the Bench connection for you.

Ask Claude to disconnect or delete the current Bench account.
Ask Claude to connect Bench again.
Open the new Composio authorization link for Bench.
Sign in with the other Bench account in the browser.
After the account connects, ask Claude to retry the Bench task.

6. Why is my Bench connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Bench connection works in Claude Web, Desktop, and Cowork.

In Claude Desktop, open Customize > Connectors.
Next to Composio, click ⋮ and click Clear cache.
If Bench tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Bench.

TOOLS

Supported Tools

Every Bench action and event your agent gets out of the box.

Sleep

FRAMEWORKS

How to build Bench MCP Agent with another framework

Claude Code

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OpenAI Agents SDK

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Claude Agent SDK

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Codex

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OpenClaw

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Hermes

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Atomic Agent

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Google ADK

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LangChain

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Vercel AI SDK

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Mastra AI

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LlamaIndex

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CrewAI

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Pydantic AI

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AutoGen

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FAQ

Frequently asked questions

With a standalone Bench MCP server, the agents and LLMs can only access a fixed set of Bench tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Bench and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Bench tools.

Yes, absolutely. You can configure which Bench scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Bench data and credentials are handled as safely as possible.

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