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Harvest を ChatGPT に接続する方法 — MCP 経由

Manage Harvest (time tracking, projects, clients, invoices, expenses) from any AI agent. 10 tools, Bearer auth with account-ID header.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

No credit card · 7-day trial · Self-host alternative available

MCP connector

Harvest

Manage Harvest (time tracking, projects, clients, invoices, expenses) from any AI agent. 10 tools, Bearer auth with account-ID header.

Tools

10

Region

INTL

Category

time-tracking

Authentication

Required env vars

HARVEST_ACCESS_TOKENHARVEST_ACCOUNT_ID
Install in one click on Cloud

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  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Source-available BSL-1.1
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

No install? Use cloud.anythingmcp.com directly.

Sign in, install the Harvest in one click, paste the credentials, mint an MCP API key — done. No Docker, no git clone, no local server to run.

Open Cloud

💡 インストール不要? cloud.anythingmcp.com を直接利用してください。 サインインし、Connectors → Harvest をクリック、認証情報を貼り付け、MCP API キーを発行 — 完了です。Docker も git clone もローカルサーバーも不要。

Harvest + ChatGPT

Manage Harvest (time tracking, projects, clients, invoices, expenses) from any AI agent. 10 tools, Bearer auth with account-ID header.

前提条件

完全なセットアップ手順はコネクタ自体に組み込まれています (ストアでコネクタを選択すると表示)。必要な環境変数:

HARVEST_ACCESS_TOKEN, HARVEST_ACCOUNT_ID

ステップ 1 — 認証情報を取得

This connector wraps the Harvest API v2 (api.harvestapp.com/v2).

Setup:

  1. Log into https://id.getharvest.com → bottom-left avatar → Developers → Create new personal access token.
  2. Copy the token and the Account ID shown on the same page (a 7-digit number like 1234567).
  3. Set both: HARVEST_ACCESS_TOKEN and HARVEST_ACCOUNT_ID.

Authentication: every request requires BOTH:

  • Authorization: Bearer ${HARVEST_ACCESS_TOKEN}
  • Harvest-Account-Id: ${HARVEST_ACCOUNT_ID}
  • A User-Agent header (Harvest API requires it — the adapter sets AnythingMCP (support@anythingmcp.com)).

…(continued in the in-app connector instructions)

ステップ 2 — アダプターをインストール

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

ステップ 3 — ChatGPT にコネクタを追加

ChatGPT は Connectors 機能 (Plus / Pro / Team / Enterprise プラン) で MCP サーバーをサポートします。無料プランはカスタムコネクタをサポートしません。

  1. ChatGPT → Settings → Connectors を開きます (またはコンポーザーの 🔧 アイコン → Manage connectors をクリック)。
  2. "Add custom connector" をクリック。
  3. 入力:
    • Name: Harvest
    • MCP server URL: https://cloud.anythingmcp.com/mcp
    • Authentication: Bearer token → MCP API キーを貼り付け
  4. Connect をクリック。

利用可能なツール

ToolWhat it does
harvest_who_am_iReturn the currently authenticated user: id, first_name, last_name, email, is_admin, default_hourly_rate, weekly_capacity
harvest_list_clientsList clients
harvest_list_projectsList projects
harvest_list_tasksList task templates (the canonical Harvest 'task' types: 'Programming', 'Design', etc
harvest_list_time_entriesList time entries
harvest_create_time_entryLog time on a project + task
harvest_update_time_entryUpdate fields on an existing time entry (notes, hours, project, task)
harvest_stop_timerStop a currently-running time entry timer
harvest_list_invoicesList invoices
harvest_list_expensesList expenses

FAQ

ChatGPT 無料プランはカスタム MCP Connectors で動作しますか? いいえ — Plus、Pro、Team、Enterprise が必要です。

次のステップ

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