PostHog · Codex

Add the PostHog MCP server to Codex

Query product analytics, manage feature flags and experiments, and inspect errors.

Official serverRemoteProduct analytics

1. Add the server

Run in your terminal

codex mcp add posthog --url https://mcp.posthog.com/mcp

2. Sign in

Run codex mcp login <name> to complete OAuth for a remote server. PostHog is hosted by PostHog, so there is nothing to install or keep updated.

3. Try it

Ask Codex for something PostHog can do. Query product analytics, manage feature flags and experiments, and inspect errors. 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.

FAQ

How do I add the PostHog MCP server to Codex?: Run: codex mcp add posthog --url https://mcp.posthog.com/mcp. Run codex mcp login <name> to complete OAuth for a remote server.
Is this the official PostHog MCP server?: Yes. It is published by PostHog as io.github.PostHog/mcp in the official MCP registry.
Does the PostHog MCP server need an API key?: It is a hosted server. Most hosted servers sign you in with OAuth the first time Codex uses them; check PostHog's docs for any plan or permission requirements.

Links

PostHog MCP docs Codex MCP docs PostHog server details

PostHog in other clients

Claude Code Gemini CLI Cursor VS Code (GitHub Copilot)

More product analytics for Codex

Amplitude

Work at PostHog?

Feature PostHog across the directory and its category from $49/month.

Feature this server

Reviewed Oct 5, 2026. Command generated from the registry record and checked against Codex's documented syntax.