How to Use the Flagsmith MCP in Claude

Q: How do I install the Flagsmith MCP Server on Claude Desktop?

Open your local claudedesktopconfig.json file and add the server configuration under the mcpServers key. Provide your FLAGSMITHAPIKEY and FLAGSMITHENVIRONMENTKEY as environment variables, then restart the Claude Desktop app.

Q: Can I manage user segments in Flagsmith using Claude Desktop?

Yes, you can manage targeting by using the deletesegmentoverride tool to strip out specific overrides. You can also use identifyuser to test how different traits affect segment assignment in real time.

Q: Does Flagsmith support bulk flag updates within Claude Desktop?

Yes, the server includes updateflagv2 for batch updates. Ask Claude Desktop to modify several flag values at once, and the agent sends a single batch API call.

Q: How does the server fetch the full configuration?

The getenvironmentdocument tool pulls down the entire configuration document. This gives Claude Desktop complete visibility into your environment rules, targeting segments, and fallback values.

Q: How does this integration protect my Flagsmith keys and user traits?

Your FLAGSMITHAPIKEY and user trait data remain inside Vinkius's secure V8 Isolate Sandbox. The MCP Server handles token authentication, meaning raw credentials and identity payloads are never exposed to public networks.

Toggle feature flags and manage user traits directly from Claude Desktop.

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Connect Flagsmith MCP to Claude Desktop

Create your Vinkius account to connect Flagsmith to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Flagsmith with Claude Desktop

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Control Flagsmith environments from Claude Desktop

The `get_environment_flags` tool retrieves default flag states directly into your local Claude Desktop chat. You ask the desktop client to check active features, and it reads the environment state without you opening a browser tab. For bulk changes, the server exposes `update_flag_v2` to apply batch updates to multiple flags at once. This lets you sync your local configuration files with Flagsmith's remote state using natural language.

Inspect and modify user targeting

The `identify_user` tool allows Claude Desktop to register user identities and assign specific traits during testing. You tell the desktop client who is logging in, and it maps the user profile instantly. Once identified, the `get_identity_flags` tool fetches the exact flags active for that user. This lets you debug complex targeting rules directly inside your chat window.

Automate setup with this MCP Server

The `create_environment` tool lets you spawn fresh staging or testing environments inside your Flagsmith project. Your agent executes this setup step during local testing cycles with a single prompt. If a test fails or a segment override becomes stale, the agent uses `delete_segment_override` to clean up the environment. You keep your configuration dry and organized without manual dashboard clicking.

Setup guide

Set up Flagsmith MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Flagsmith MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Flagsmith MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under flagsmith-mcp.

json

{
  "mcpServers": {
    "flagsmith-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Flagsmith. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Flagsmith MCP in Claude Desktop

Open your local `claude_desktop_config.json` file and add the server configuration under the `mcpServers` key. Provide your `FLAGSMITH_API_KEY` and `FLAGSMITH_ENVIRONMENT_KEY` as environment variables, then restart the Claude Desktop app.

Yes, you can manage targeting by using the `delete_segment_override` tool to strip out specific overrides. You can also use `identify_user` to test how different traits affect segment assignment in real time.

Yes, the server includes `update_flag_v2` for batch updates. Ask Claude Desktop to modify several flag values at once, and the agent sends a single batch API call.

The `get_environment_document` tool pulls down the entire configuration document. This gives Claude Desktop complete visibility into your environment rules, targeting segments, and fallback values.

Your FLAGSMITH_API_KEY and user trait data remain inside Vinkius's secure V8 Isolate Sandbox. The MCP Server handles token authentication, meaning raw credentials and identity payloads are never exposed to public networks.

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