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Wave Accounting を ChatGPT に接続する方法 — MCP 経由

Query Wave Accounting (customers, products, invoices, accounts, transactions) via GraphQL from any AI agent. 8 tools, Bearer token auth.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

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

MCP connector

Wave Accounting

Query Wave Accounting (customers, products, invoices, accounts, transactions) via GraphQL from any AI agent. 8 tools, Bearer token auth.

Tools

13

Region

INTL

Category

Accounting

Authentication

Required env vars

WAVE_ACCESS_TOKENWAVE_BUSINESS_ID
Install in one click on Cloud

7-day free trial · No credit card

  • 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 Wave Accounting 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 → Wave Accounting 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。

Wave Accounting + ChatGPT

Query Wave Accounting (customers, products, invoices, accounts, transactions) via GraphQL from any AI agent. 8 tools, Bearer token auth.

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:

WAVE_ACCESS_TOKEN, WAVE_BUSINESS_ID

ステップ 1 — 認証情報を取得

This connector wraps the Wave GraphQL API (gql.waveapps.com/graphql/public).

Setup:

  1. Sign in to https://my.waveapps.com → bottom-left avatar → Manage Applications → Create Application.
  2. Use the OAuth flow to obtain an access token, OR (faster) generate a Full Access Token from the application settings (single-tenant).
  3. Business ID: Wave is multi-business — find your business ID via the wave_get_businesses query or in the URL of any Wave page.
  4. Set WAVE_ACCESS_TOKEN and WAVE_BUSINESS_ID.

Authentication: Authorization: Bearer ${WAVE_ACCESS_TOKEN}.

…(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: Wave Accounting
    • 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
wave_get_businessesList all businesses the user can access — returns id, name, isClassicAccounting, currency
wave_list_customersList customers in a business
wave_create_customerCreate a customer
wave_list_invoicesList invoices in a business
wave_get_invoiceGet a single invoice with line items + memos
wave_list_productsList products & services in a business
wave_list_accountsList chart-of-accounts entries (ledger accounts) for a business
wave_send_invoiceSend (email) an invoice to its customer

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

Ready to ship

Your Wave agent is one click away.

Install the connector, paste the key, prompt ChatGPT. Free for 7 days, no credit card.