A Model Context Protocol (MCP) server for interacting with the Backlog API. This server provides tools for managing projects, issues, wiki pages, and
Backlog MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. A Model Context Protocol (MCP) server for interacting with the Backlog API. This server provides tools for managing projects, issues, wiki pages, and more in Backlog through AI agents like Claude Desktop / Cline / Cursor etc.
Once Backlog is connected, these are the calls the assistant has available:
get_space — Returns information about the Backlog spaceget_users — Returns list of users in the Backlog spaceget_myself — Returns information about the authenticated userget_project_list — Returns list of projectsadd_project — Creates a new projectget_project — Returns information about a specific projectget_project_users — Returns list of users in a specific projectupdate_project — Updates an existing projectdelete_project — Deletes a projectget_issue — Returns information about a specific issueget_issues — Returns list of issuescount_issues — Returns count of issuesYou will need 8 environment variables: BACKLOG_DOMAIN, BACKLOG_API_KEY, TOOL_ADD_ISSUE_COMMENT_DESCRIPTION, TOOL_CREATE_PROJECT_DESCRIPTION, MAX_TOKENS, OPTIMIZE_RESPONSE, PREFIX, ENABLE_TOOLSETS. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Backlog's toolset — get_space, get_users, get_myself and 11 more — is a fair guide to whether it matches your workflow. It is maintained by nulab; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| get_space | Returns information about the Backlog space. |
| get_users | Returns list of users in the Backlog space. |
| get_myself | Returns information about the authenticated user. |
| get_project_list | Returns list of projects. |
| add_project | Creates a new project. |
| get_project | Returns information about a specific project. |
| get_project_users | Returns list of users in a specific project. |
| update_project | Updates an existing project. |
| delete_project | Deletes a project. |
| get_issue | Returns information about a specific issue. |
| get_issues | Returns list of issues. |
| count_issues | Returns count of issues. |
| add_issue | Creates a new issue in the specified project. |
| update_issue | Updates an existing issue. |
{
"mcpServers": {
"backlog": {
"command": "docker",
"args": [
"run",
"--pull",
"always",
"-i",
"--rm",
"-e",
"BACKLOG_DOMAIN",
"-e",
"BACKLOG_API_KEY",
"ghcr.io/nulab/backlog-mcp-server"
],
"env": {
"BACKLOG_DOMAIN": "your-domain.backlog.com",
"BACKLOG_API_KEY": "your-api-key"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| BACKLOG_DOMAIN | Configuration value read at startup. | Optional |
| BACKLOG_API_KEY | Credential the server authenticates with. | Yes |
| TOOL_ADD_ISSUE_COMMENT_DESCRIPTION | Configuration value read at startup. | Optional |
| TOOL_CREATE_PROJECT_DESCRIPTION | Configuration value read at startup. | Optional |
| MAX_TOKENS | Credential the server authenticates with. | Yes |
| OPTIMIZE_RESPONSE | Configuration value read at startup. | Optional |
| PREFIX | Configuration value read at startup. | Optional |
| ENABLE_TOOLSETS | Configuration value read at startup. | Optional |
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