Ganty MCP

Gantt chart SaaS with server-side critical path and dependency-aware shift-impact tools, plus CRUD.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Gantt chart SaaS with server-side critical path and dependency-aware shift-impact tools, plus CRUD.

    How to connect

    How to connect Ganty MCP to Claude

    The server address to paste into Claude settings:

    https://ganty.app/api/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Ganty MCP to ChatGPT

    The server address to paste into ChatGPT settings:

    https://ganty.app/api/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Ganty MCP to Cursor

    The server address to paste into Cursor settings:

    https://ganty.app/api/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (15)

    Raw names from tools/list. Only developers need these.

    list_workspacesGet all workspaces the authenticated user is a member of.
    list_projectsList all projects in a workspace (excluding archived).
    create_projectCreate a new project in a workspace. Returns the created project. Subject to plan-based project count limits.
    delete_projectPermanently delete a project. All tasks, milestones, and dependencies inside the project are also removed. This cannot be undone.
    list_tasksList tasks in a project. Supports optional filtering by name (search), status, and assignee.
    get_taskGet detailed information about a single task, including assignees and dependencies.
    list_milestonesList milestones in a project (key dates such as launch or review gates).
    create_milestoneAdd a milestone (key date) to a project.
    create_taskCreate a new task in a project. Dates must be in YYYY-MM-DD format. End date is exclusive (a 1-day task has end = start + 1 day).
    update_taskUpdate fields of an existing task. Only provided fields will be modified.
    set_task_progressUpdate the progress percentage of a task (0-100). Status is auto-derived: 0=not_started, 1-99=in_progress, 100=done.
    add_dependencyAdd a finish-to-start dependency between two tasks in the same project.
    delete_taskDelete a task. Child tasks and dependencies are removed as well.
    get_critical_pathCalculate the critical path of a project on the Ganty side and return it as data (don't ask the model to reason over raw task lists). Uses forward/backward CPM with progress-aware remaining duration. Returns critical_path tasks in order, per-task earliest/latest start/finish + slack, project_end_date, and total_duration_days. v1 limitations: Finish-to-Start dependencies only (Ganty has no other types), calendar days by default (business_days=true skips Sat/Sun but no holiday table), ignores multi-period segments, no resource calendars. Returns { error: 'cyclic_dependency', cycle } if a cycle is detected.
    reschedule_and_propagateCompute the downstream impact of shifting a single task. Default is dry_run (no DB writes); set mode='commit' to actually persist the changes. Cascades forward only (no pull): successors are pushed only if their predecessor's new end + lag would violate their current start. Tasks with progress=100 are treated as pinned; pass pinned_task_ids for additional pins. When a pin would be violated, the change is recorded in 'conflicts' and not propagated further. In mode='commit', if any conflicts exist nothing is written (all-or-nothing transaction). Same v1 limitations as get_critical_path: FS only, calendar days by default, no holiday table, ignores multi-period segments.