ChatGPT Integration

Wren AI is available as an app in ChatGPT's plugin directory - the Wren AI listing. Instead of pasting an MCP endpoint URL by hand, open the listing and click Install plugin - then ask questions about your data warehouse directly in a ChatGPT conversation.

Plan support

The ChatGPT plugin runs on the same organization-level MCP endpoint as Wren AI MCP, so it requires the Enterprise Cloud plan and above, and an org admin must enable MCP first.

Agentic Mode not supported

Like Wren AI MCP, the ChatGPT plugin runs in Interactive Mode only. Requests from ChatGPT use Interactive Mode even if the connected project has Agentic Mode available.

Overview

Once installed, ChatGPT can reach the exposed projects your account is allowed to see in the connected Wren AI organization. ChatGPT picks a project, reads its schema through the semantic layer, and answers in natural language - with SQL and charts generated by Wren AI rather than guessed from raw tables.

• Where: ChatGPT web and desktop apps - the listing at chatgpt.com/plugins
• Auth: OAuth with your Wren AI account - no API key, no local proxy, no URL to copy
• Security: Row/column-level security is enforced per user, server-side

Before You Begin

1. Wren AI Enterprise Cloud plan and above.

2. An org admin has enabled MCP and exposed projects. In Wren AI, go to Settings → Organization → MCP, turn on Enable MCP for this organization, and toggle Exposed for each project you want reachable from ChatGPT. See Wren AI MCP → Before You Begin for details.

   note

   Only exposed projects are reachable, and each user still only sees projects they're a member of.

3. A ChatGPT account that can install apps. Plugin and connector availability depends on your ChatGPT plan, and on Business/Enterprise workspaces an admin may have to allow the app before members can install it. If the Install plugin button isn't there, that's the usual reason.

   note

   Allowing the app at the workspace level doesn't grant anyone data access on its own - each person still signs in with their own Wren AI account, which is what keeps RLS/CLS scoped per user.

Install Wren AI in ChatGPT

Step 1 - Open the Wren AI listing and install.

Go to the Wren AI plugin listing in ChatGPT. The listing shows what the app does and every tool it exposes. Click Install plugin.

tip

You can also reach the same listing from inside ChatGPT: open Plugins and search wren.

Step 2 - Log in with your Wren AI account.

ChatGPT redirects you to Wren AI Cloud to authenticate over OAuth. Sign in with your own Wren AI account - data permissions are resolved from whoever logs in here.

When you're returned to ChatGPT, Wren AI shows up in your installed apps and is ready to use.

Step 3 - Add custom instructions (optional).

ChatGPT has no skill upload, so the analyst guidance goes in custom instructions instead. Go to Settings → Personalization → Custom Instructions and paste the content from web/chatgpt/wrenai-analyst-skill.md.

tip

Generate the skill content locally:

git clone https://github.com/canner/wrenai-mcp.git && cd wrenai-mcp && ./setup --host chatgpt

Using It

Mention the app in a conversation (@Wren AI) or just ask a data question and let ChatGPT pick the tool. ChatGPT discovers your projects with list_projects, reads the schema with get_project_metadata, then answers with ask / generate_sql / run_sql, and renders charts from the same governed query with generate_chart.

Expand the Opened Wren AI step to see exactly which tools ran and what came back - useful when you want to check the question ChatGPT actually asked, or the projectId it chose.

Example prompts:

• "List my Wren AI projects."
• "@Wren AI which customer segments churned the most last quarter?"
• "@Wren AI where is our sales pipeline stalling? Chart it by stage."
• "In the Sales project, what were the top 5 products by revenue last quarter? Chart it."

note

The app is bound to a single Wren AI organization. list_projects returns only the exposed projects in that organization, even if your account belongs to other MCP-enabled organizations.

Tools

Tool	Purpose	Takes projectId
list_projects	Projects you can query	-
get_project_metadata	Table schema for a project	✓
ask	End-to-end natural-language Q&A	✓
generate_sql	Question → SQL	✓
run_sql	Execute SQL	✓
generate_chart	Vega chart spec	✓
generate_summary	Summarize results	✓
respond_clarification	Answer a follow-up question from Wren AI	✓

Data Security

Row/column-level security (RLS/CLS) is enforced per user: policies are resolved server-side from the Wren AI account that authorized the app, and ChatGPT cannot override them.

Watch out for shared accounts

Anyone connecting with a shared Wren AI account inherits exactly that account's data permissions, so RLS/CLS can't distinguish between the individual people behind it. Have each person install the app with their own Wren AI account.

Troubleshooting

Symptom	Likely cause and fix
No Install plugin button on the listing, or searching wren in Plugins returns nothing	Your ChatGPT plan doesn't include apps, or a Business/Enterprise admin hasn't allowed this one yet.
The login screen in Step 2 shows the wrong Wren AI account	It reuses your browser's Wren AI session. Uninstall the app and reinstall as the right account - RLS/CLS follows whoever authorized it.
list_projects returns nothing	MCP is off for the org, no project is Exposed, you're not a member of an exposed project, or you connected a different org.
Fewer rows or columns than the Wren AI web app shows	RLS/CLS of the account that authorized the app. Compare the same question in Wren AI signed in as that account.
You need a self-hosted or non-default endpoint	The listing points at Wren AI Cloud. Add it as a custom connector instead - see Wren AI MCP.

Related

• Claude.ai Integration - the same connector in Claude.
• Wren AI MCP - the underlying endpoint, plus Claude Code setup and the custom-connector flow.