GrowthBook · Codex
Add the GrowthBook MCP server to Codex
Manage GrowthBook feature flags and experiments through bundled skills and an authenticated API passthrough.
1. Add the server
Run in your terminal
# ~/.codex/config.toml [mcp_servers.growthbook] command = "npx" args = ["-y", "@growthbook/mcp"]
Scopes, env vars, OAuth and limits: Codex MCP config guide
2. Sign in
Run codex mcp login <name> to complete OAuth for a remote server. GrowthBook runs locally; set any credentials GrowthBook asks for before starting Codex.
3. Try it
Ask Codex for something GrowthBook can do. Manage GrowthBook feature flags and experiments through bundled skills and an authenticated API passthrough. Approve the first tool call and check the result before allowing write actions automatically.
- · Each server is a [mcp_servers.<name>] table in config.toml.
- · Use enabled_tools or disabled_tools to keep the tool list short.
Get the weekly agent stack update
New official MCP servers, spec changes and harness releases, checked against the source. One email a week, no fluff.
FAQ
- How do I add the GrowthBook MCP server to Codex?
- Run: # ~/.codex/config.toml …. Run codex mcp login <name> to complete OAuth for a remote server.
- Is this the official GrowthBook MCP server?
- Yes. It is published by GrowthBook as io.github.growthbook/growthbook-mcp in the official MCP registry.
- Does the GrowthBook MCP server need an API key?
- It runs locally from a package. See GrowthBook's docs for any credentials it needs.
Links
GrowthBook in other clients
More product analytics for Codex
Work at GrowthBook?
Feature GrowthBook across the directory and its category from $49/month.
Reviewed Oct 19, 2026. Command generated from the registry record and checked against Codex's documented syntax.