Harvest MCP Server

by usefulapi Your server? Claim it

answering

Harvest is answering right now. Last checked 12 min ago. It exposes 20 tools. Last commit 1 Sep 2026.

Read time entries, projects, clients, tasks and invoices; log and update tracked time.

Uptime history 47 days of history · worst day 1%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

154 ms

Response time

average over 24h

Stars

last commit 1 Sep 2026

What the code does

We read the source, 20 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

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Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add harvest --transport http https://harvest.usefulapi.io/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "harvest": {
      "url": "https://harvest.usefulapi.io/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.harvest]
url = "https://harvest.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "harvest": {
      "url": "https://harvest.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "harvest": {
      "url": "https://harvest.usefulapi.io/mcp"
    }
  }
}

Available tools 20

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

harvest

harvest_create_time_entry

Create a time entry. Requires project_id, task_id and spent_date. Provide `hours` to log a specific duration; OR provide `started_time` (+ optional `ended_time`) for a timestamped entry; OR omit both to start a running timer (on a timestamp-tracking account). Use harvest_list_project_assignments to find valid project_id + task_id. Harvest REST: POST /time_entries. WRITE — creates data.

harvest_delete_time_entry

Permanently delete a time entry by id. This cannot be undone. Harvest REST: DELETE /time_entries/{id}. WRITE — destroys data.

harvest_get_client

Retrieve a single client by id. Harvest REST: GET /clients/{id}.

harvest_get_company

Retrieve the company/account settings for the authenticated account (name, currency, time/date formats, week start, feature flags). Harvest REST: GET /company.

harvest_get_current_user

Retrieve the currently authenticated user (whom the access token belongs to). Harvest REST: GET /users/me.

harvest_get_invoice

Retrieve a single invoice by id, including its line items. Harvest REST: GET /invoices/{id}.

harvest_get_project

Retrieve a single project by id. Harvest REST: GET /projects/{id}.

harvest_get_time_entry

Retrieve a single time entry by id. Harvest REST: GET /time_entries/{id}.

harvest_list_clients

List clients, optionally filtered by active status or updated-since. Paginated. Harvest REST: GET /clients.

harvest_list_estimates

List estimates, optionally filtered by client, state, date range, or updated-since. Paginated. Harvest REST: GET /estimates.

harvest_list_expenses

List expenses, optionally filtered by user, client, project, date range, billed status, or updated-since. Paginated. Harvest REST: GET /expenses.

harvest_list_invoices

List invoices, optionally filtered by client, project, state, date range, or updated-since. Paginated. Harvest REST: GET /invoices.

harvest_list_project_assignments

List the authenticated user's active project assignments — the projects and their assignable tasks the current user can log time against (use this to find the project_id + task_id for harvest_create_time_entry). Paginated. Harvest REST: GET /users/me/project_assignments.

harvest_list_projects

List projects, optionally filtered by active status or client, or updated-since. Paginated. Harvest REST: GET /projects.

harvest_list_tasks

List tasks (the billable/non-billable work categories that can be assigned to projects), optionally filtered by active status or updated-since. Paginated. Harvest REST: GET /tasks.

harvest_list_time_entries

List time entries, optionally filtered by user, project, client, task, date range, running/billed status, or updated-since. Paginated. Harvest REST: GET /time_entries.

harvest_list_users

List users in the account, optionally filtered by active status or updated-since. Paginated. Harvest REST: GET /users.

harvest_restart_time_entry

Restart a previously stopped time entry, resuming its timer (error if it is already running). Harvest REST: PATCH /time_entries/{id}/restart. WRITE — modifies data.

harvest_stop_time_entry

Stop a currently running time entry (no-op error if it is already stopped). Harvest REST: PATCH /time_entries/{id}/stop. WRITE — modifies data.

harvest_update_time_entry

Update an existing time entry's hours, notes, spent date, or project/task. Only the fields you provide are changed. Harvest REST: PATCH /time_entries/{id}. WRITE — modifies data.

Endpoints

URL	Transport	State	Latency	Checked
https://harvest.usefulapi.io/mcp	streamable-http	answering	242 ms	12 min ago

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Harvest — questions

Answers built from our own checks of this server.

What can Harvest do?

It exposes 20 tools, read directly from the server on our last check. Among them: harvest_create_time_entry, harvest_delete_time_entry, harvest_get_client, harvest_get_company, harvest_get_current_user, harvest_get_invoice and 14 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Harvest working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 154 ms. The bar chart above shows every period we have measured.

How do I connect Harvest?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Harvest need an API key?

No. Harvest completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 20 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Harvest?

It answers our handshake in 154 ms on average, which is faster than 75% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Harvest open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.