How to Connect Mixpanel to Codex

How do I connect Mixpanel to Codex?

You need two things: (1) connect Mixpanel to Sequel in your Sequel dashboard under Connections, and (2) add the Sequel MCP config to Codex using the setup shown above. Once both are done, Codex can query your Mixpanel data directly.

What Mixpanel data can Codex access?

Codex can access any data available through your Mixpanel connection in Sequel. Use Sequel's search tool to discover available metrics and dimensions, then execute queries to pull the data you need.

Is my Mixpanel data sent to Codex's servers?

Query results are returned to Codex as context within your conversation. Only the data you explicitly ask about is retrieved. Sequel never stores your query results permanently — they exist only for the duration of the tool call.

Do I need a Sequel account?

Yes. You need a Sequel account to connect Mixpanel and generate an API key. Sign up free at sequel.sh — no credit card required. Then create a connection to Mixpanel and generate an API key from Settings → API Keys.

Can I connect multiple Mixpanel accounts?

Yes. Sequel supports multiple connections of the same type. If you have multiple Mixpanel accounts or properties, add each as a separate connection in Sequel. Codex will be able to query all of them.

How do I configure Sequel for Codex CLI?

Add the Sequel MCP server to ~/.codex/config.yaml as shown above. Create the file if it doesn't exist. Replace `sql_your_api_key` with a real key from Settings → API Keys, then restart Codex.

Does Codex CLI support HTTP MCP servers?

Yes. Codex CLI supports MCP over HTTP (Streamable HTTP transport). The `type: http` field in the config tells Codex to use this transport when connecting to Sequel.

Can I limit which databases Codex can access?

Sequel MCP is scoped to your organization's connected data sources. You can create separate API keys for different environments and revoke them at any time from Settings → API Keys.

Is this the same as the original OpenAI Codex model?

No — Codex CLI is OpenAI's agentic terminal coding tool, separate from the original Codex language model. It uses the latest OpenAI models (GPT-4o and o-series) with MCP tool support.

How do I connect Mixpanel to Sequel?

Create a Service Account in Mixpanel under Organization Settings → Service Accounts with at least project-level read access. Copy the username (looks like `my-sa.abc123.mp-service-account`) and the secret shown once at creation, then paste both into Sequel along with your numeric project ID and region.

Why a Service Account instead of an OAuth login?

Service Accounts are the long-lived, scope-limited credential Mixpanel recommends for programmatic access. They can be revoked or rotated independently of any user's login, and they don't break when a teammate leaves. Sequel uses HTTP Basic auth with the service account username and secret.

Which Mixpanel region should I pick?

Use the region your project was created in. US projects use mixpanel.com / data.mixpanel.com. EU projects use eu.mixpanel.com / data-eu.mixpanel.com. The region toggle simply chooses which API host Sequel calls — pick the wrong one and you'll see 401s or empty results.

Can Sequel modify data in Mixpanel?

No. The connector only ships read-only tools: segmentation, funnel report, list funnels, list events, list event properties, and raw event export. The agent has no write surface, so it cannot create reports, funnels, or cohorts.