bbkt (Bitbucket CLI & MCP Server)

A complete command-line interface and Model Context Protocol (MCP) server written in Go that provides programmatic integration with Bitbucket Cloud workspaces and repositories.

Features

• Dual mode — Use as an interactive CLI for daily work, or launch as an MCP server (bbkt mcp) for AI agents (Claude Desktop, Cursor, etc.).
• Git-aware — Most commands auto-detect the current workspace and repo from .git/config, so bbkt prs list Just Works inside a Bitbucket repo.
• Multi-profile — Switch between personal and work Atlassian accounts with --profile or BBKT_PROFILE; auto-selects the right profile based on your git config email.
• Two auth modes — Atlassian API tokens (Basic auth) or interactive OAuth 2.0 with automatic token refresh.
• Scope-aware MCP — At startup the MCP server introspects your token's granted scopes and silently hides tools the token can't use, preventing the AI from hallucinating successful writes it doesn't have permission for.
• Read and write — Repositories, workspaces, pipelines, issues, pull requests, comments, and source code (read/write/delete) — all via the API.

Installation

Recommended — curl | bash

Installs the latest release binary for your OS/arch from GitHub Releases.

# System-wide (uses sudo if /usr/local/bin isn't writable)
curl -sSL https://raw.githubusercontent.com/zach-snell/bbkt/main/install.sh | bash

# User-local, no sudo (~/.local/bin)
curl -sSL https://raw.githubusercontent.com/zach-snell/bbkt/main/install.sh | bash -s -- --user

Fish users on --user: run fish_add_path ~/.local/bin once if it isn't already on $PATH.

From GitHub Releases

Download a prebuilt binary for your OS/arch directly from the Releases page (Linux/macOS/Windows, amd64 + arm64).

From source

git clone https://github.com/zach-snell/bbkt.git
cd bbkt
go build -o bbkt ./cmd/bbkt

Requires Go 1.26+.

Quickstart

# 1. Authenticate (interactive — prompts for email + Atlassian API token)
bbkt auth

# 2. Verify
bbkt status

# 3. Use it. Inside a Bitbucket repo, workspace/repo are inferred from git.
bbkt prs list
bbkt pipelines trigger --ref-name main
bbkt source read README.md

For OAuth instead of an API token:

export BITBUCKET_OAUTH_CLIENT_ID=<consumer-key>
export BITBUCKET_OAUTH_CLIENT_SECRET=<consumer-secret>
bbkt auth --oauth

Authentication

bbkt stores credentials at ~/.config/bbkt/credentials.json and supports multiple profiles.

Atlassian API tokens (default)

bbkt auth                  # save to "default" profile
bbkt auth --profile work   # save to a named profile

Important: Bitbucket Cloud REST API requires scoped API tokens since the September 2025 phase-2 of app-password deprecation. At id.atlassian.com/manage-profile/security/api-tokens, use the "Create API token with scopes" button — not plain "Create API token". Unscoped tokens authenticate to Atlassian but Bitbucket rejects them; bbkt will detect this and point you here.

Recommended scope set for full read/write:

read:account
read:user:bitbucket          read:workspace:bitbucket
read:repository:bitbucket    write:repository:bitbucket
read:pullrequest:bitbucket   write:pullrequest:bitbucket
read:pipeline:bitbucket      write:pipeline:bitbucket

OAuth 2.0 (browser flow)

Register an OAuth consumer in your Bitbucket workspace settings, then:

export BITBUCKET_OAUTH_CLIENT_ID=<consumer-key>
export BITBUCKET_OAUTH_CLIENT_SECRET=<consumer-secret>
bbkt auth --oauth

bbkt opens a browser, captures the callback on http://localhost:8976, exchanges the code for tokens, and stores them. Access tokens auto-refresh on expiry. To override the callback port (must match your registered redirect_uri):

export BBKT_OAUTH_CALLBACK_PORT=9876

Multi-profile switching

bbkt profile                  # list profiles, mark active
bbkt profile use work         # set active profile
bbkt profile refresh          # refresh cached workspace list per profile
BBKT_PROFILE=work bbkt prs list   # one-shot profile override

When BBKT_PROFILE is unset, bbkt tries to auto-select a profile whose accessible workspaces match your git config email; otherwise it falls back to active_profile.

One-shot env-var auth (CI, scripts)

Setting any of these env vars bypasses the stored profile entirely:

# API token
export BITBUCKET_USERNAME=you@example.com   # despite the name, this is your Atlassian email
export BITBUCKET_API_TOKEN=ATATT3xFf...

# OAuth bearer
export BITBUCKET_ACCESS_TOKEN=<oauth-access-token>

CLI Usage

Global flags (all commands): --json raw JSON output, --profile <name> profile override.

# Auth & profiles
bbkt auth [--oauth] [--profile <name>]     # set up credentials
bbkt status                                # show active profile + token health
bbkt logout                                # remove stored credentials
bbkt profile [use <name> | refresh]        # manage profiles

# Workspaces / repos
bbkt workspaces [list | get <workspace>]
bbkt repos     [list | get | create | delete]
                 [--query <q>] [--role <owner|admin|contributor|member>]

# Pull requests (workspace/repo inferred from git)
bbkt prs list                              # --state OPEN|MERGED|SUPERSEDED|DECLINED
bbkt prs get <pr-id>
bbkt prs create --title <t> --source <branch> [--destination <branch>]
bbkt prs merge <pr-id> [--strategy merge_commit|squash|fast_forward]
bbkt prs approve <pr-id>
bbkt prs decline <pr-id>
bbkt prs comments [list | add | resolve]   # --content, --parent, --file, --to, --from

# Pipelines
bbkt pipelines list                        # --status SUCCESSFUL|FAILED|INPROGRESS
bbkt pipelines get <pipeline-uuid>
bbkt pipelines trigger --ref-name <branch> [--ref-type branch|tag|bookmark]
bbkt pipelines stop <pipeline-uuid>
bbkt pipelines steps <pipeline-uuid>
bbkt pipelines log <pipeline-uuid> <step-uuid>

# Issues
bbkt issues [list | get | create | update]
              [--state] [--kind bug|enhancement|proposal|task] [--priority ...]

# Source code
bbkt source read <path> [--ref <ref>]
bbkt source tree [<path>] [--max-depth <n>]
bbkt source search <query>
bbkt source history <path>
bbkt source write <path> --content <text> [--message <m>] [--branch <b>]
bbkt source delete <path> [--message <m>]

Most commands prompt interactively (via huh) when required arguments are missing. Run bbkt <command> --help for full flag details.

MCP Server

bbkt mcp launches a Model Context Protocol server for AI agents. Two transports:

Stdio (default — for Claude Desktop, Cursor, etc.)

Add to your MCP client config:

{
  "mcpServers": {
    "bitbucket": {
      "command": "/absolute/path/to/bbkt",
      "args": ["mcp"]
    }
  }
}

By default the server reads credentials from ~/.config/bbkt/credentials.json (the profile set up via bbkt auth). To override per-client:

{
  "mcpServers": {
    "bitbucket": {
      "command": "/absolute/path/to/bbkt",
      "args": ["mcp"],
      "env": {
        "BBKT_PROFILE": "work"
      }
    }
  }
}

HTTP Streamable (for remote / network clients)

bbkt mcp --port 8080

This serves the MCP Streamable Transport (SSE-based) on the given port.

Scope-gated tools

The MCP server calls Bitbucket's /user endpoint at startup to introspect your token's granted scopes, then silently drops any tool whose required scope is missing. This prevents the AI from confidently calling, say, manage_pipelines (pipeline scope) on a read-only token and getting a 403 it can't recover from.

To explicitly deny tools even when scopes allow them:

export BITBUCKET_DISABLED_TOOLS="manage_repositories,manage_pipelines"

To skip credential loading entirely (tools will return auth-required errors when invoked — useful for testing the transport):

bbkt mcp --no-auth

Environment Variables

Variable	Purpose	Required
BITBUCKET_USERNAME	Atlassian email (despite the legacy name) — used with BITBUCKET_API_TOKEN	Only for env-var API-token auth
BITBUCKET_API_TOKEN	Atlassian scoped API token	Only for env-var API-token auth
BITBUCKET_ACCESS_TOKEN	OAuth 2.0 bearer token (overrides stored profile)	Only for env-var OAuth
BITBUCKET_OAUTH_CLIENT_ID	OAuth consumer Key	Only for bbkt auth --oauth
BITBUCKET_OAUTH_CLIENT_SECRET	OAuth consumer Secret	Only for bbkt auth --oauth
BBKT_PROFILE	Profile name override (one-shot)	No
BBKT_OAUTH_CALLBACK_PORT	Local callback port for OAuth flow (default 8976)	No
BITBUCKET_DISABLED_TOOLS	Comma-separated MCP tools to disable	No

When BITBUCKET_ACCESS_TOKEN or (BITBUCKET_USERNAME + BITBUCKET_API_TOKEN) is set, the stored profile is bypassed entirely.

Tools Provided (MCP)

Tool	Operations	Required Scope
manage_workspaces	list, get	—
manage_repositories	list, get, create, delete	repository
manage_refs	list, create, delete branches and tags	repository
manage_commits	list, get, diff, diffstat	repository
manage_source	read, list_directory, get_history, search, write, delete	repository
manage_pull_requests	list, get, create, update, merge, approve, unapprove, decline, diff, diffstat, commits	pullrequest
manage_pr_comments	list, create, update, delete, resolve, unresolve	pullrequest
manage_pipelines	list, get, trigger, stop, list-steps, get-step-log	pipeline
manage_issues	list, get, create, update	issue

Scopes shown are the OAuth-style names. For Atlassian API tokens, the equivalent granular scopes are read:<scope>:bitbucket / write:<scope>:bitbucket.

Development

Requires Go 1.26+.

go test ./...                    # unit tests
go test -tags=live ./...         # live integration tests (requires BBKT_LIVE_* secrets)
golangci-lint run ./...

The repo also has a docs site (Astro) under docs/ deployed to https://zach-snell.github.io/bbkt/.

License

Apache 2.0 — see LICENSE.