ConfigCat MCP Server
@configcat
About ConfigCat MCP Server
Enables AI tools to interact with ConfigCat, a feature flag service for teams. Supports managing ConfigCat feature flags, configs, environments, products and organizations. Helps to integrate ConfigCat SDK, implement feature flags and remove zombie (stale) flags.
Config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"ConfigCat": {
"command": "npx",
"args": [
"-y",
"@configcat/mcp-server"
],
"env": {
"CONFIGCAT_API_USER": "YOUR_API_USER",
"CONFIGCAT_API_PASS": "YOUR_API_PASSWORD"
}
}
}
}Tools
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Overview
What is ConfigCat MCP Server?
The ConfigCat MCP Server provides access to ConfigCat's public management API for feature flag and configuration management. It enables code editors to understand feature flags, integrate the appropriate ConfigCat SDK into a project, or create new feature flags directly in the codebase. It is designed for developers managing ConfigCat feature flags and configurations.
How to use ConfigCat MCP Server?
Configure the server with the required environment variables CONFIGCAT_API_USER and CONFIGCAT_API_PASS (and optionally CONFIGCAT_BASE_URL). Connect via Cursor, Visual Studio Code (.vscode/mcp.json), or Claude Desktop by adding a JSON server definition that runs npx -y @configcat/mcp-server with the environment variables.
Key features of ConfigCat MCP Server
- Complete CRUD operations for ConfigCat entities.
- SDK documentation and code examples for feature flag implementation.
- Manage organizations, products, configs, environments, and segments.
- Feature flag and setting value management (v1 & v2 APIs).
- Diagnostics including audit logs and stale flag reports.
- Webhook, integration, and tag management.
Use cases of ConfigCat MCP Server
- Create and manage feature flags directly from an editor or CLI.
- Automate the setup of configs, environments, and SDK keys.
- Retrieve code references and SDK documentation for a project.
- Audit and clean up stale or zombie feature flags.
- Invite members and manage permission groups via MCP tools.
FAQ from ConfigCat MCP Server
What authentication is required?
The server uses basic authentication with a CONFIGCAT_API_USER and CONFIGCAT_API_PASS (public API credentials from the ConfigCat dashboard).
What are the rate limits?
The ConfigCat public API has rate limits; the server respects these and returns appropriate error messages if limits are exceeded.
Can I use this server to evaluate feature flags in production?
No. The server is for management operations only. Use the ConfigCat SDKs or ConfigCat Proxy for evaluating flag values in production applications.
How is the server connected to clients?
The server runs via npx using stdio transport. Configuration is provided as environment variables in the MCP client’s server definition.
Where can I get help or contribute?
Support is available at https://configcat.com/support. Contributions are welcome per the project’s Contribution Guideline.
Frequently asked questions
What authentication is required?
The server uses basic authentication with a `CONFIGCAT_API_USER` and `CONFIGCAT_API_PASS` (public API credentials from the ConfigCat dashboard).
What are the rate limits?
The ConfigCat public API has rate limits; the server respects these and returns appropriate error messages if limits are exceeded.
Can I use this server to evaluate feature flags in production?
No. The server is for management operations only. Use the ConfigCat SDKs or ConfigCat Proxy for evaluating flag values in production applications.
How is the server connected to clients?
The server runs via `npx` using stdio transport. Configuration is provided as environment variables in the MCP client’s server definition.
Where can I get help or contribute?
Support is available at https://configcat.com/support. Contributions are welcome per the project’s Contribution Guideline.
Basic information
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