ConfigCat/mcp-server

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🎖️ 📇 ☁️ - MCP server for interacting with ConfigCat feature flag platform. Supports managing feature flags, configs, environments, products and organizations.

Quick Install

One-Click IDE Configuration
claude_desktop_config.json
{
  "mcpServers": {
    "configcat-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "configcat-mcp-server"
      ]
    }
  }
}
Or

Using an AI coding agent (Claude Code, Cursor, etc.)? Copy a ready-made prompt that tells it to fetch the setup instructions and install this server for you.

Documentation Overview

ConfigCat MCP Server

NPM License

The ConfigCat's Model Context Protocol (MCP) server provides access to ConfigCat's public management API for feature flag and configuration management. It also enables your code editor to understand your feature flags, integrate the appropriate ConfigCat SDK into your project or even create new feature flags directly in your codebase.

Features

  • Tools:
    • Complete set of tools for ConfigCat's public management API operations. You can Create, Read, Update and Delete any entities like Feature Flags, Configs, Environments or Products within ConfigCat.
    • Get comprehensive SDK documentation and code examples for seamless feature flag implementation in your project.

Setup

You can use the following environment variables to configure the MCP server.

Environment variableRequiredDefaultDescription
CONFIGCAT_API_USER☑ConfigCat Management API basic authentication username.
CONFIGCAT_API_PASS☑ConfigCat Management API basic authentication password.
CONFIGCAT_BASE_URLhttps://api.configcat.comConfigCat Management API host.

The instructions below shows how to connect a client to the MCP server.

Cursor

  1. Open Preferences -> Cursor Settings -> MCP & Integrations
  2. Click Add Custom MCP
  3. Add the following server definition for the ConfigCat MCP server:
{
  "mcpServers": {
    "ConfigCat": {
      "command": "npx",
      "args": ["-y", "@configcat/mcp-server"],
      "env": {
        "CONFIGCAT_API_USER": "YOUR_API_USER",
        "CONFIGCAT_API_PASS": "YOUR_API_PASSWORD"
      }
    }
  }
}
  1. Save the settings.

Visual Studio Code

  1. Create a .vscode/mcp.json file in your project root with the following content:
{
  "servers": {
    "ConfigCat": {
      "command": "npx",
      "args": ["-y", "@configcat/mcp-server"],
      "env": {
        "CONFIGCAT_API_USER": "YOUR_API_USER",
        "CONFIGCAT_API_PASS": "YOUR_API_PASSWORD"
      }
    }
  }
}
  1. Save the settings file. The MCP server should now be available in VS Code.

Claude Desktop

  1. Open Settings → Developer
  2. Click Edit Config
  3. Open claude_desktop_config.json
  4. Add the following server definition for the ConfigCat MCP server:
{
  "mcpServers": {
    "ConfigCat": {
      "command": "npx",
      "args": ["-y", "@configcat/mcp-server"],
      "env": {
        "CONFIGCAT_API_USER": "YOUR_API_USER",
        "CONFIGCAT_API_PASS": "YOUR_API_PASSWORD"
      }
    }
  }
}
  1. Save and restart Claude.

Available Tools

Membership Management

Organizations

  • list-organizations - List all organizations

Members

  • list-organization-members - List organization members
  • list-pending-invitations - List pending invitations
  • list-pending-invitations-org - List org pending invitations
  • list-product-members - List product members
  • invite-member - Invite a new member
  • update-member-permissions - Update the permissions of a member
  • delete-organization-member - Remove organization member
  • delete-product-member - Remove product member
  • delete-invitation - Cancel invitation

Permission Groups

  • list-permission-groups - List permission groups
  • create-permission-group - Create a new permission group
  • get-permission-group - Get permission group details
  • update-permission-group - Update permission group
  • delete-permission-group - Delete permission group

General

Products

  • list-products - List all products
  • get-product - Get specific product details
  • update-product - Update existing product
  • delete-product - Delete a product
  • get-product-preferences - Get product preferences
  • update-product-preferences - Update product preferences
  • create-product - Create a new product

Configs

  • list-configs - List configs for a product
  • create-config - Create a new config
  • get-config - Get specific config details
  • update-config - Update existing config
  • delete-config - Delete a config

Environments

  • list-environments - List environments for a product
  • create-environment - Create a new environment
  • get-environment - Get specific environment details
  • update-environment - Update existing environment
  • delete-environment - Delete an environment

Segments

  • list-segments - List user segments
  • create-segment - Create a new segment
  • get-segment - Get specific segment details
  • update-segment - Update existing segment
  • delete-segment - Delete a segment

SDK Keys

  • get-sdk-keys - Get SDK keys for config/environment

Webhooks

  • list-webhooks - List webhooks
  • get-webhook - Get webhook details
  • replace-webhook - Replace webhook configuration
  • update-webhook - Update existing webhook
  • delete-webhook - Delete a webhook
  • get-webhook-signing-keys - List webhook signing keys
  • create-webhook - Create a new webhook

Integrations

  • list-integrations - List integrations
  • create-integration - Create a new integration
  • get-integration - Get integration details
  • update-integration - Update existing integration
  • delete-integration - Delete an integration

Code References

  • get-code-references - Get code references

Diagnostics

Audit logs

  • list-auditlogs - Get product audit logs
  • list-organization-auditlogs - Get organization audit logs

Zombie (stale) flags

  • list-staleflags - Get stale feature flags report

Feature Flag metadata

Feature Flags & Settings

  • list-settings - List feature flags for a config
  • create-setting - Create a new feature flag
  • list-predefined-variations - List predefined variations
  • update-predefined-variations - Update predefined variations
  • get-setting - Get specific feature flag details
  • replace-setting - Replace feature flag configuration
  • update-setting - Update existing feature flag
  • delete-setting - Delete a feature flag

Tags

  • list-tags - List tags for a product
  • create-tag - Create a new tag
  • list-settings-by-tag - Get feature flags by tag
  • get-tag - Get specific tag details
  • update-tag - Update existing tag
  • delete-tag - Delete a tag

Feature Flag & Setting Values (v1 & v2 APIs)

  • get-setting-value - Get feature flag value
  • update-setting-value - Update feature flag value
  • replace-setting-value - Replace feature flag value
  • get-setting-values - Get multiple setting values
  • post-setting-values - Update multiple setting values
  • V2 variants: *-v2 versions of above tools for Config V2

SDK documentation

  • update-sdk-documentation - Get comprehensive SDK documentation and code examples for seamless feature flag implementation in your project.

API Rate Limits

The ConfigCat public API has rate limits. The server will respect these limits and return appropriate error messages if limits are exceeded.

Security Note

This server is designed for management operations only. Do not use it for evaluating feature flag values in production applications - use the ConfigCat SDKs or ConfigCat Proxy instead.

Need help?

https://configcat.com/support

Contributing

Contributions are welcome. For more info please read the Contribution Guideline.

About ConfigCat

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Last checked: 7/28/2026, 9:16:30 PM

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