Can I use Harvest as a CLI?

Yes. KosmoKrator exposes a Harvest CLI through kosmo integrations:call and the provider shortcut command. Commands can return JSON for scripts, CI, and coding agents.

Can I expose Harvest through MCP?

Yes. The KosmoKrator MCP gateway can expose selected Harvest tools to clients such as Claude Code, Cursor, Codex, and other MCP-compatible tools.

Where are Harvest credentials stored?

Harvest credentials are configured in KosmoKrator's local integration settings and reused by CLI, Lua, and MCP gateway surfaces.

Can I deny write access for Harvest MCP tools?

Yes. Start the gateway with --write=deny for read-only clients, or use ask/allow only for trusted workspaces.

productivity

Harvest MCP Integration for Claude Agent SDK

Connect Harvest to Claude Agent SDK through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

12 functions 9 read 3 write Manual OAuth token auth

Submit Harvest feedback View package source

Connect Harvest to Claude Agent SDK

Give Claude Agent SDK workflows access to KosmoKrator integrations through a local MCP server.

Add a KosmoKrator stdio MCP server to the Claude Agent SDK options. The gateway is local, scoped to this integration, and starts with --write=deny so Claude Agent SDK can inspect read-capable tools without receiving write access by default.

Harvest MCP Config for Claude Agent SDK

Use a narrow integration list so the agent does not load unrelated tools.

{
  "mcpServers": {
    "kosmokrator-harvest": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=harvest",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=harvest --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Harvest instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Harvest Tools Visible to Claude Agent SDK

Claude Agent SDK sees stable MCP tool names generated from the Harvest integration catalog.

MCP tool	Source function	Type	Description
`integration__harvest__harvest_list_time_entries`	`harvest.harvest_list_time_entries`	Read	List Harvest time entries with optional filters for user, client, project, and date range.
`integration__harvest__harvest_create_time_entry`	`harvest.harvest_create_time_entry`	Write	Create a new Harvest time entry for a project and task.
`integration__harvest__harvest_get_time_entry`	`harvest.harvest_get_time_entry`	Read	Get a single Harvest time entry by its ID.
`integration__harvest__harvest_update_time_entry`	`harvest.harvest_update_time_entry`	Write	Update an existing Harvest time entry (hours, notes, or spent_date).
`integration__harvest__harvest_delete_time_entry`	`harvest.harvest_delete_time_entry`	Write	Delete a Harvest time entry by its ID.
`integration__harvest__harvest_list_projects`	`harvest.harvest_list_projects`	Read	List Harvest projects with optional filters for client and active status.
`integration__harvest__harvest_get_project`	`harvest.harvest_get_project`	Read	Get a single Harvest project by its ID.
`integration__harvest__harvest_list_clients`	`harvest.harvest_list_clients`	Read	List Harvest clients with optional active status filter.
`integration__harvest__harvest_list_tasks`	`harvest.harvest_list_tasks`	Read	List Harvest tasks with optional active status filter.
`integration__harvest__harvest_list_users`	`harvest.harvest_list_users`	Read	List Harvest users with optional active status filter.
`integration__harvest__harvest_get_user`	`harvest.harvest_get_user`	Read	Get a single Harvest user by their ID.
`integration__harvest__harvest_get_current_user`	`harvest.harvest_get_current_user`	Read	Get the currently authenticated Harvest user profile.

Related Harvest Pages

Harvest CLIUse direct JSON commands instead of MCP discovery. Harvest MCPFull gateway reference and MCP tool names. KosmoKrator for Claude Agent SDKClient-level gateway setup.