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Atlassian Bitbucket MCP Server

by aashari

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
ATLASSIAN_API_TOKENNoYour scoped API token (starts with ATATT)
ATLASSIAN_USER_EMAILNoYour Atlassian account email address
BITBUCKET_DEFAULT_WORKSPACENoYour default workspace slug to avoid specifying it every time
ATLASSIAN_BITBUCKET_USERNAMENoYour Bitbucket username (legacy method)
ATLASSIAN_BITBUCKET_APP_PASSWORDNoYour Bitbucket app password (legacy method)

Capabilities

Features and capabilities supported by this server

CapabilityDetails
tools
{
  "listChanged": true
}

Tools

Functions exposed to the LLM to take actions

NameDescription
bb_getA

Read any Bitbucket data. Returns TOON format by default (30-60% fewer tokens than JSON).

IMPORTANT - Cost Optimization:

  • ALWAYS use jq param to filter response fields. Unfiltered responses are very expensive!

  • Use pagelen query param to restrict result count (e.g., pagelen: "5")

  • If unsure about available fields, first fetch ONE item with pagelen: "1" and NO jq filter to explore the schema, then use jq in subsequent calls

Schema Discovery Pattern:

  1. First call: path: "/workspaces", queryParams: {"pagelen": "1"} (no jq) - explore available fields

  2. Then use: jq: "values[*].{slug: slug, name: name, uuid: uuid}" - extract only what you need

Output format: TOON (default, token-efficient) or JSON (outputFormat: "json")

Common paths:

  • /workspaces - list workspaces

  • /repositories/{workspace} - list repos in workspace

  • /repositories/{workspace}/{repo} - get repo details

  • /repositories/{workspace}/{repo}/pullrequests - list PRs

  • /repositories/{workspace}/{repo}/pullrequests/{id} - get PR details

  • /repositories/{workspace}/{repo}/pullrequests/{id}/comments - list PR comments

  • /repositories/{workspace}/{repo}/pullrequests/{id}/diff - get PR diff

  • /repositories/{workspace}/{repo}/refs/branches - list branches

  • /repositories/{workspace}/{repo}/commits - list commits

  • /repositories/{workspace}/{repo}/src/{commit}/{filepath} - get file content

  • /repositories/{workspace}/{repo}/diff/{source}..{destination} - compare branches/commits

Query params: pagelen (page size), page (page number), q (filter), sort (order), fields (sparse response)

Example filters (q param): state="OPEN", source.branch.name="feature", title~"bug"

JQ examples: values[*].slug, values[0], values[*].{name: name, uuid: uuid}

The /2.0 prefix is added automatically. API reference: https://developer.atlassian.com/cloud/bitbucket/rest/

bb_postA

Create Bitbucket resources. Returns TOON format by default (token-efficient).

IMPORTANT - Cost Optimization:

  • Use jq param to extract only needed fields from response (e.g., jq: "{id: id, title: title}")

  • Unfiltered responses include all metadata and are expensive!

Output format: TOON (default) or JSON (outputFormat: "json")

Common operations:

  1. Create PR: /repositories/{workspace}/{repo}/pullrequests body: {"title": "...", "source": {"branch": {"name": "feature"}}, "destination": {"branch": {"name": "main"}}}

  2. Add PR comment: /repositories/{workspace}/{repo}/pullrequests/{id}/comments body: {"content": {"raw": "Comment text"}}

  3. Approve PR: /repositories/{workspace}/{repo}/pullrequests/{id}/approve body: {}

  4. Request changes: /repositories/{workspace}/{repo}/pullrequests/{id}/request-changes body: {}

  5. Merge PR: /repositories/{workspace}/{repo}/pullrequests/{id}/merge body: {"merge_strategy": "squash"} (strategies: merge_commit, squash, fast_forward)

The /2.0 prefix is added automatically. API reference: https://developer.atlassian.com/cloud/bitbucket/rest/

bb_putA

Replace Bitbucket resources (full update). Returns TOON format by default.

IMPORTANT - Cost Optimization:

  • Use jq param to extract only needed fields from response

  • Example: jq: "{uuid: uuid, name: name}"

Output format: TOON (default) or JSON (outputFormat: "json")

Common operations:

  1. Update repository: /repositories/{workspace}/{repo} body: {"description": "...", "is_private": true, "has_issues": true}

  2. Create/update file: /repositories/{workspace}/{repo}/src Note: Use multipart form data for file uploads (complex - prefer PATCH for metadata)

  3. Update branch restriction: /repositories/{workspace}/{repo}/branch-restrictions/{id} body: {"kind": "push", "pattern": "main", "users": [{"uuid": "..."}]}

The /2.0 prefix is added automatically. API reference: https://developer.atlassian.com/cloud/bitbucket/rest/

bb_patchA

Partially update Bitbucket resources. Returns TOON format by default.

IMPORTANT - Cost Optimization: Use jq param to filter response fields.

Output format: TOON (default) or JSON (outputFormat: "json")

Common operations:

  1. Update PR title/description: /repositories/{workspace}/{repo}/pullrequests/{id} body: {"title": "New title", "description": "Updated description"}

  2. Update PR reviewers: /repositories/{workspace}/{repo}/pullrequests/{id} body: {"reviewers": [{"uuid": "{user-uuid}"}]}

  3. Update repository properties: /repositories/{workspace}/{repo} body: {"description": "New description"}

  4. Update comment: /repositories/{workspace}/{repo}/pullrequests/{pr_id}/comments/{comment_id} body: {"content": {"raw": "Updated comment"}}

The /2.0 prefix is added automatically. API reference: https://developer.atlassian.com/cloud/bitbucket/rest/

bb_deleteA

Delete Bitbucket resources. Returns TOON format by default.

Output format: TOON (default) or JSON (outputFormat: "json")

Common operations:

  1. Delete branch: /repositories/{workspace}/{repo}/refs/branches/{branch_name}

  2. Delete PR comment: /repositories/{workspace}/{repo}/pullrequests/{pr_id}/comments/{comment_id}

  3. Decline PR: /repositories/{workspace}/{repo}/pullrequests/{id}/decline

  4. Remove PR approval: /repositories/{workspace}/{repo}/pullrequests/{id}/approve

  5. Delete repository: /repositories/{workspace}/{repo} (caution: irreversible)

Note: Most DELETE endpoints return 204 No Content on success.

The /2.0 prefix is added automatically. API reference: https://developer.atlassian.com/cloud/bitbucket/rest/

bb_cloneA

Clone a Bitbucket repository to your local filesystem using SSH (preferred) or HTTPS.

Provide repoSlug and targetPath (absolute path). Clones into targetPath/repoSlug. SSH keys must be configured; falls back to HTTPS if unavailable.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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