How to integrate Linear MCP with ChatGPT

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How to integrate Linear MCP with ChatGPT

ChatGPT is one of the most popular AI tools today, with capabilities ranging from deep research and image generation to writing, coding, and everyday productivity.

In this guide, I will explain the easiest and most secure way to connect your Linear account to ChatGPT via Composio Connect, so it can summarize unread updates from this morning, create draft replies to urgent messages, fetch contact details for recent senders, and more without ever putting your account credentials at risk.

Also integrate Linear with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Linear integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with Plus subscription or higher (Business, Enterprise, Edu, or Pro). We will use ChatGPT Web.
  • Access to the Linear workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Linear to ChatGPT

1. Enable Developer Mode

In ChatGPT, go to Settings > Apps > Advanced settings and turn on Developer Mode.

ChatGPT settings showing Developer Mode toggle

2. Add the MCP server

Click Create app, then paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT create app flow with Composio MCP URL

3. Authorize in your browser

A browser window will open automatically. Sign in to authorize ChatGPT to access your Composio account.

Composio authorization screen for ChatGPT MCP setup

4. Start using Composio

Composio tools are now available in ChatGPT chats and Deep Research. In every new chat, click the + icon at the bottom, click More, and select Composio to enable tools for that conversation.

What you can do after connecting Linear

  • Create a new bug for team Mobile
  • Add a comment to issue LIN-123
  • List all cycles for the Design team
  • Download the latest attachment from issue LIN-456

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.

Supported Tools & Triggers

Tools
Triggers
Create attachmentCreates a new attachment and associates it with a specific, existing Linear issue.
Add reaction to commentTool to add a reaction to an existing Linear comment.
Create a commentCreates a new comment on a specified Linear issue.
Create linear issueCreates a new issue in a specified Linear project and team, requiring team_id and title, and allowing optional properties like description, assignee, state, priority, cycle, and due date.
Create issue relationCreate a relationship between two Linear issues using the issueRelationCreate mutation.
Create a labelCreates a new label in Linear for a specified team, used to categorize and organize issues.
Create ProjectCreates a new Linear project with specified name and team associations.
Create Project MilestoneTool to create a project milestone in Linear with a name and optional target date and sort order.
Create Project UpdateTool to create a project status update post for a Linear project.
Delete issueArchives an existing Linear issue by its ID, which is Linear's standard way of deleting issues; the operation is idempotent.
Download issue attachmentsDownloads a specific attachment from a Linear issue; the `file_name` must include the correct file extension.
Get current userGets the currently authenticated user's ID, name, email, and other profile information — this is the account behind the API token, which may be a bot or service account rather than a human user.
Get cycles by team IDRetrieves all cycles for a specified Linear team ID; cycles are time-boxed work periods (like sprints).
Get create issue default paramsFetches a Linear team's default issue estimate and state, useful for pre-filling new issue forms.
Get Linear issueRetrieves an existing Linear issue's comprehensive details, including id, identifier, title, description, timestamps, state, team, creator, attachments, comments (with user info and timestamps, use issue.
Get Linear projectRetrieves a single Linear project by its unique identifier.
List issue draftsTool to list issue drafts.
List issues by team IDTool to list all issues for a specific Linear team, scoped by team ID.
Get all cyclesRetrieves all cycles (time-boxed sprint iterations) org-wide from the Linear account; no filters applied.
List Linear issuesLists non-archived Linear issues; if project_id is not specified, issues from all accessible projects are returned.
Get labelsRetrieves labels from Linear.
List linear projectsRetrieves all projects from the Linear account.
List Linear statesRetrieves all workflow states for a specified team in Linear, representing the stages an issue progresses through in that team's workflow.
Get teamsRetrieves all teams with their members and projects.
List Linear usersLists all workspace users (not team-scoped) with their IDs, names, emails, and active status.
Remove label from Linear issueRemoves a specified label from an existing Linear issue using their IDs; successful even if the label isn't on the issue.
Remove reaction from commentTool to remove a reaction on a comment.
Run Query or MutationExecute any GraphQL query or mutation against Linear's API.
Search Linear issuesSearch Linear issues using full-text search across identifier, title, and description.
Update issueUpdates an existing Linear issue using its `issue_id`; requires at least one other attribute for modification, and all provided entity IDs (for state, assignee, labels, etc.
Update a commentTool to update an existing Linear comment's body text.
Update ProjectTool to update an existing Linear project.

How to build Linear MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Linear MCP?

With a standalone Linear MCP server, the agents and LLMs can only access a fixed set of Linear tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Linear and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with ChatGPT?

Yes, you can. ChatGPT fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Linear tools.

Can I manage the permissions and scopes for Linear while using Tool Router?

Yes, absolutely. You can configure which Linear scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Linear data and credentials are handled as safely as possible.

Used by agents from

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