How to connect GitLab to ChatGPT

1. 1. Enable GitLab in Metorial

   In your Metorial portal, enable the GitLab MCP server and sign in with the account that owns the data. Access stays governed by your team policies.

2. 2. Add a custom MCP server

   On ChatGPT web, open Plugins, select +, then Add custom MCP server.

3. 3. Paste your Metorial MCP URL

   Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>), choose OAuth and accept the risk notice.

4. 4. Create and install the plugin

   Select Create as a plugin, install it and sign in to load GitLab tools.

• Create Release: Create a new release for a project, or list existing releases.
• Manage Pipeline: Trigger, retry, or cancel a CI/CD pipeline.
• Manage Project: Create, update, fork, or delete a GitLab project.
• Manage Issue: Create, update, close, reopen, or delete a GitLab issue.
• List Merge Requests: List GitLab merge requests, optionally scoped to a project.
• Manage Merge Request: Create, update, or merge a GitLab merge request.
• List Issues: List GitLab issues filtered by project, state, labels, milestone, assignee, author, or search term.
• List Pipelines: List CI/CD pipelines for a project.
• Add Comment: Add a comment (note) to an issue or merge request.
• Get Project: Retrieve detailed information about a specific GitLab project by its ID or URL-encoded path (e.g.
• Browse Repository: Browse a project's repository tree, read file contents, or compare branches.
• Manage Branch: List, create, or delete branches in a project repository.
• Search: Search across GitLab for projects, issues, merge requests, milestones, code (blobs), commits, wiki content, and users.
• List Groups: List GitLab groups accessible to the authenticated user.
• List Projects: List GitLab projects accessible to the authenticated user.
• And 15 more on the GitLab MCP server page.

• Type @ and pick the plugin. The selection applies to that message only, so @mention it again when a follow-up needs fresh GitLab data.
• For write actions, ChatGPT may ask you to confirm first, depending on the app permissions and the action.
• Once published for a workspace, ChatGPT keeps a snapshot of the tool list. When your team adds GitLab tools in Metorial, an admin refreshes the actions in Workspace settings before they appear.
• You can use several apps in one prompt, for example read GitLab data and then create a ticket in another app.

Add custom MCP server is missing

Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.

The plugin exists but no tools appear

Creating the plugin is not enough: install it from your plugins, then start a new conversation so ChatGPT loads its tools.

ChatGPT answers without using the tools

Pick the plugin with @ in the composer and name the action you want, for example "use Metorial to look up the latest ticket".

Based on the ChatGPT MCP documentation.