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How to connect ConfigCat to Claude

Connect Claude Web, Desktop and Cowork to ConfigCat MCP. List production feature flags currently enabled, create staging flag for beta checkout, and more using natural language, with authentication handled for you.

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ConfigCat is a feature flag management service for rollouts, configs, environments, and team access. Use it to ship safely, test changes, and control releases without redeploying.

10 Tools

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 ConfigCat account to Claude via Composio Connect, enabling it to list production feature flags currently enabled, create staging flag for beta checkout, audit rollout rules for mobile app, 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.

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Connecting ConfigCat 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 ConfigCat account

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

For example, ask Claude to:

  • "List production feature flags currently enabled"
  • "Create staging flag for beta checkout"
  • "Audit rollout rules for mobile app"

It will prompt you to authenticate and authorize access.

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

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

The ConfigCat MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your ConfigCat account. It provides structured and secure access so your agent can perform ConfigCat operations on your behalf.

Troubleshooting

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

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

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

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

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

  • 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 ConfigCat.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the ConfigCat authorization link not work?

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

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

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

The ConfigCat connection can expire or lose permission.

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

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

Claude can manage the ConfigCat connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If ConfigCat 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 ConfigCat.
TOOLS

Supported Tools

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

Create Flag or Setting

Create a feature flag or typed setting in a Config.

Delete Flag or Setting

Permanently delete one ConfigCat feature flag or setting by ID.

Get Product Context

Return a ConfigCat Product's configs, environments, segments, and tags, including the identifiers and evaluation versions needed to manage flags and targeting.

Get Environment Setting Value V2

Get one Config V2 flag or setting's complete evaluation formula in an Environment, including its optimistic-concurrency version.

List Account Hierarchy

List accessible ConfigCat organizations and products so an agent can resolve the IDs needed by product-scoped tools.

List Environment Values V2

Return every Config V2 feature flag and setting evaluation formula for one Config and Environment, preserving ordered targeting rules and concurrency versions while omitting parent objects and updater data.

List Flags and Settings

List feature flags and settings in one Config, including IDs, keys, types, tags, and metadata needed by value operations.

Patch Environment Setting Value V2

Update selected typed fields of one Config V2 evaluation formula while preserving every field the caller omits.

Replace Environment Setting Value V2

Completely replace one Config V2 flag or setting evaluation formula in an Environment.

Update Flag Metadata

Partially update a flag or setting's name, hint, or complete tag assignment without resetting untouched metadata.

FRAMEWORKS

How to build ConfigCat MCP Agent with another framework

ChatGPT logo

ChatGPT

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Hermes logo

Hermes

Use ConfigCat MCP with Hermes

Atomic Agent logo

Atomic Agent

Use ConfigCat MCP with Atomic Agent

FAQ

Frequently asked questions

With a standalone ConfigCat MCP server, the agents and LLMs can only access a fixed set of ConfigCat tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from ConfigCat 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 ConfigCat tools.

Yes, absolutely. You can configure which ConfigCat 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 ConfigCat data and credentials are handled as safely as possible.

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