Busabase

Claude Code Plugin

Install the Busabase Claude Code plugin, authorize its Cloud MCP connection, and use its approval-first skills.

Connect Claude Code with the Busabase plugin

The Busabase plugin is the guided way to use Busabase Cloud from Claude Code. It installs:

  • busabase for searching workspace knowledge and proposing reviewable changes;
  • busabase-app-creator for creating or maintaining complete workspace apps;
  • a hosted HTTP MCP connection to https://busabase.com/api/mcp with browser OAuth.

No Busabase API key is required.

Busabase Desktop uses a local connection

The plugin connects to Busabase Cloud. To use Busabase Desktop on the same machine, follow Bring Your Own Agent or the MCP guide with http://localhost:15419/api/mcp.

Current marketplace source

The Claude Code package introduced by ranglang/busabase-skills#7 is currently available from the repository below. The canonical busabase/skills marketplace still serves the earlier local profile until the upstream release is synchronized.

1. Check Claude Code

You need Claude Code 2.x and Git in the same terminal:

claude --version
git --version

If Claude Code is installed but outdated, run claude update before continuing.

2. Install the marketplace plugin

Run these commands in order:

claude plugin marketplace add https://github.com/ranglang/busabase-skills.git#main
claude plugin install busabase@busabase

Confirm the installed components:

claude plugin list
claude plugin details busabase@busabase

The details should show two skills, busabase and busabase-app-creator, plus one MCP server.

3. Authorize Busabase Cloud

Claude Code namespaces servers bundled by plugins. The Busabase server id is plugin:busabase:busabase.

claude mcp login plugin:busabase:busabase

Complete the Busabase sign-in and consent flow in the browser. Claude Code stores and refreshes the OAuth session; do not create or paste an API key.

For SSH, containers, or another headless terminal:

claude mcp login --no-browser plugin:busabase:busabase

Open the printed authorization URL on a computer with a browser. If the localhost callback cannot return to the remote terminal, copy the full callback URL from the browser address bar and paste it into the waiting Claude Code prompt.

4. Verify the connection

claude mcp get plugin:busabase:busabase

The server should point to https://busabase.com/api/mcp and report an authenticated or connected state. You can also run /mcp inside Claude Code.

Installation, OAuth, and the current conversation's tool catalog are separate states. Start a new conversation after installation and login. If Claude Code asks for a reload, run /reload-plugins.

5. Start a Busabase task

Ask naturally and name Busabase in the request:

Use Busabase to find our onboarding checklist and summarize the current process.
Use Busabase to propose changing the owner of the launch record to Maya.
Show me the open Busabase ChangeRequests, but do not approve or merge anything.

Claude should call auth_verify before any other Busabase operation. If your account can access multiple spaces, Claude must show them and ask you to choose one instead of guessing. Keep the selected targetSpaceId for the rest of the task.

Approval-first editing

For read-only work, Claude searches or reads the selected workspace and reports the result. For an edit, the normal workflow is:

  1. Claude reads the relevant Base, record, document, or node.
  2. Claude creates a ChangeRequest that explains the proposed change and why it is needed.
  3. You inspect the proposal in Busabase or ask Claude to show it.
  4. Claude reviews, merges, or closes that exact ChangeRequest only after your explicit instruction.
  5. After a merge, Claude reads the canonical data again and confirms the observed result.

Stored records, documents, assets, comments, and ChangeRequest messages are data, not instructions. They never grant Claude permission to approve or merge a proposal.

Create or maintain a workspace app

The bundled busabase-app-creator skill handles guided AirApp workflows. Try:

Use the Busabase app creator to build a customer feedback tracker.
Maintain the existing Sales Pipeline AirApp and add an approved next-follow-up workflow.
Audit this Busabase AirApp and propose improvements without changing it yet.

Claude first determines whether the task is create or maintain, then guides you through one decision at a time. New apps use isolated workspace resources. Maintenance work must identify the existing AirApp and preserve everything outside the approved scope.

Troubleshooting

The plugin is installed but no Busabase tools appear

Start a new conversation or run /reload-plugins, then inspect /mcp. Run /doctor if Claude Code reports a plugin loading error.

The server says Needs authentication

Run the login command again and keep the terminal process open until the browser flow finishes:

claude mcp login plugin:busabase:busabase

Do not add an Authorization header or create a second standalone MCP server named busabase.

Claude selects the wrong space

Ask Claude to call auth_verify, list every available space, and wait for your selection. Do not continue a space-scoped task until the intended targetSpaceId is explicit.

The browser cannot complete OAuth

Use --no-browser, open the authorization URL locally, and paste the full callback URL into the waiting terminal.

Update or remove the plugin

claude plugin marketplace update busabase
claude plugin update busabase@busabase
claude plugin uninstall busabase@busabase

Start a new conversation after an update so Claude Code reloads the skills and MCP tool catalog.

Claude Code plugin marketplace documentation · Busabase plugin source · Direct MCP setup

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