How to Use the Flagsmith MCP in Cursor

Q: How do I configure the Flagsmith MCP Server in Cursor?

Create a .cursor/mcp.json file in your project root. Add the server under the mcpServers block with your FLAGSMITHAPIKEY, then enable Agent mode in the chat panel.

Q: Can Cursor update multiple Flagsmith flags at the same time?

Yes, the updateflagv2 tool allows Cursor to execute batch updates. You can ask the agent to sync a group of local feature toggles with the remote server in one step.

Q: How do I test targeted features in Flagsmith using Cursor?

Use the identifyuser tool to set traits for a test user, then call getidentityflags to see which features apply. Cursor uses this output to verify your conditional code blocks.

Q: What happens if I need to remove a segment override?

The deletesegmentoverride tool lets you remove specific overrides directly from the terminal or chat. This cleans up your targeting rules without requiring you to log into the web UI.

Write code that matches your live Flagsmith feature flags inside Cursor.

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Connect Flagsmith MCP to Cursor

Create your Vinkius account to connect Flagsmith to Cursor 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 Cursor

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Generate code using active Flagsmith MCP Server states

The `get_environment_flags` tool pulls live flag definitions directly into your Cursor editor. Your AI agent reads these flags to write conditional blocks that match your exact production configuration. When you need to modify flags while coding, `update_flag_v1` changes a single flag value instantly. This prevents context switching between your IDE and the Flagsmith dashboard.

Debug user traits in Cursor

The `get_identity_flags` tool queries the flags assigned to a specific user context within your workspace. Cursor uses this data to mock user sessions and test feature variations in your local environment. You can alter these user contexts using `identify_user` to apply new traits. Your editor updates its understanding of the user state, letting you write targeted frontend code faster.

Sync environment configurations

The `get_environment_document` tool retrieves the full JSON configuration of your environment directly into Cursor. The agent parses this document to ensure your local code aligns with remote targeting rules. If your code relies on a new environment, `create_environment` instantiates it without leaving the editor. This keeps your development pipeline moving without manual setup overhead.

Setup guide

Set up Flagsmith MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Flagsmith MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Flagsmith transactions." If the MCP tools are loaded correctly, Cursor will call the Flagsmith tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/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 Cursor

Create a `.cursor/mcp.json` file in your project root. Add the server under the `mcpServers` block with your `FLAGSMITH_API_KEY`, then enable Agent mode in the chat panel.

Yes, the `update_flag_v2` tool allows Cursor to execute batch updates. You can ask the agent to sync a group of local feature toggles with the remote server in one step.

Use the `identify_user` tool to set traits for a test user, then call `get_identity_flags` to see which features apply. Cursor uses this output to verify your conditional code blocks.

The `delete_segment_override` tool lets you remove specific overrides directly from the terminal or chat. This cleans up your targeting rules without requiring you to log into the web UI.

Your API keys and user traits are kept in Vinkius's ephemeral V8 sandbox. Cursor communicates with the MCP Server via secure local endpoints, ensuring your configuration payload is never leaked.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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