Bring Feature Flags
to Claude Desktop
Learn how to connect Statsig to Claude Desktop and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Statsig MCP Server?
Connect your Statsig project to any AI agent to manage feature rollouts and product experiments through natural conversation.
What you can do
- Feature Gates — Evaluate if a feature is enabled for a specific user or list all project gates
- Dynamic Configs — Fetch JSON configurations and experiments to control app behavior without code changes
- Event Logging — Log custom events for real-time analytics and metric calculation
- Gate Management — Create, update, or delete feature gates directly via the Console API
- Layer Inspection — Evaluate layers and retrieve parameter values for specific users
How it works
- Subscribe to this server
- Enter your Statsig Server Secret Key (for evaluation) and Console API Key (for management)
- Start managing your product experiments from Claude, Cursor, or any MCP client
Who is this for?
- Product Managers — check gate statuses and create new feature flags without leaving the chat
- Developers — verify evaluation logic and log test events directly from the IDE
- Data Scientists — inspect experiment configurations and verify metric logging
Built-in capabilities (12)
Requires STATSIG_SERVER_SECRET_KEY. Evaluates one or more feature gates for a user
Requires STATSIG_CONSOLE_API_KEY. Create a new dynamic config
Requires STATSIG_CONSOLE_API_KEY. Create a new feature gate
Requires STATSIG_CONSOLE_API_KEY. Delete a feature gate
Requires STATSIG_SERVER_SECRET_KEY. Fetches configuration values for a dynamic config or experiment
Requires STATSIG_CONSOLE_API_KEY. Read a specific dynamic config
Requires STATSIG_CONSOLE_API_KEY. Read a specific feature gate
Requires STATSIG_SERVER_SECRET_KEY. Fetches parameter values from a layer
Requires STATSIG_CONSOLE_API_KEY. List all dynamic configs in the project
Requires STATSIG_CONSOLE_API_KEY. List all feature gates in the project
Requires STATSIG_SERVER_SECRET_KEY. Logs custom events for analytics and metric calculation
Requires STATSIG_CONSOLE_API_KEY. Update an existing feature gate
Why Claude Desktop?
Claude Desktop is the definitive way to connect Statsig to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 12 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.
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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network
Statsig in Claude Desktop
Statsig and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Statsig to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Statsig in Claude Desktop
The Statsig MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Statsig for Claude Desktop
Every tool call from Claude Desktop to the Statsig MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
What is the difference between the Server Secret Key and the Console API Key?
The Server Secret Key is used for evaluation tools like check_gate and get_config. The Console API Key is required for management actions like list_gates or create_gate.
How do I evaluate a gate for a specific user?
Use the check_gate tool. You must provide the gateName and a user JSON object containing at least a userID (e.g., {"userID": "123"}).
Can I log custom events for analytics?
Yes, use the log_event tool to send an array of event objects including name, value, and user metadata to Statsig for real-time metric calculation.
How does Claude Desktop discover MCP tools?
When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.
What happens if the MCP server is temporarily unavailable?
Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.
Can I connect multiple MCP servers simultaneously?
Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.
Is there a limit on the number of tools per server?
Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.
Does Claude Desktop support Streamable HTTP transport?
Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.
Server not appearing after restart
Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).
Authentication error
Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.
Tools not showing in chat
Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.
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