How to integrate Bitbucket MCP with ChatGPT

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How to integrate Bitbucket 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 Bitbucket 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 Bitbucket with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Bitbucket 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 Bitbucket 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 Bitbucket 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 Bitbucket

  • Create a new branch off main
  • Open a pull request for your feature
  • Comment on the latest open issue
  • Fetch README file from repository

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
Create a branchCreates a new branch in a bitbucket repository from a target commit hash; the branch name must be unique, adhere to bitbucket's naming conventions, and not include the 'refs/heads/' prefix.
Create an issueCreates a new issue in a bitbucket repository, setting the authenticated user as reporter; ensures assignee (if provided) has repository access, and that any specified milestone, version, or component ids exist.
Create an issue commentAdds a new comment with markdown support to an existing bitbucket issue.
Create a pull requestCreates a new pull request in a specified bitbucket repository, ensuring the source branch exists and is distinct from the (optional) destination branch.
Create repositoryCreates a new bitbucket 'git' repository in a specified workspace, defaulting to the workspace's oldest project if `project key` is not provided.
Create snippet commentPosts a new top-level comment or a threaded reply to an existing comment on a specified bitbucket snippet.
Delete issuePermanently deletes a specific issue, identified by its `issue id`, from the repository specified by `repo slug` within the given `workspace`.
Delete repositoryPermanently deletes a specified bitbucket repository; this action is irreversible and does not affect forks.
Get current userRetrieves the profile information (uuid, display name, links, creation date) for the currently authenticated bitbucket user.
Get file from repositoryRetrieves a specific file's content from a bitbucket repository at a given commit (hash, branch, or tag), failing if the file path is invalid for that commit.
Get Pull RequestGet a single pull request by id with complete details.
Get snippetRetrieves a specific bitbucket snippet by its encoded id from an existing workspace, returning its metadata and file structure.
List pull requestsLists pull requests in a specified, accessible bitbucket repository, optionally filtering by state (open, merged, declined).
List repositories in workspaceLists repositories in a specified bitbucket workspace, accessible to the authenticated user, with options to filter by role or query string, and sort results.
List workspace membersLists all members of a specified bitbucket workspace; the workspace must exist.
List workspacesLists bitbucket workspaces accessible to the authenticated user, optionally filtered and sorted.
Update an issueUpdates an existing issue in a bitbucket repository by modifying specified attributes; requires `workspace`, `repo slug`, `issue id`, and at least one attribute to update.

How to build Bitbucket MCP Agent with another framework

FAQ

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

With a standalone Bitbucket MCP server, the agents and LLMs can only access a fixed set of Bitbucket tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Bitbucket 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 Bitbucket tools.

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

Yes, absolutely. You can configure which Bitbucket 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 Bitbucket data and credentials are handled as safely as possible.

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HubSpot
Agent.ai
Altera
DataStax
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Context
Letta
glean
HubSpot
Agent.ai
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DataStax
Entelligence
Rolai

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