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Connect Exact Online to Claude via MCP: Invoices

Exact Online — the Dutch accounting and ERP standard: accounts, sales and purchase invoices, items, stock, GL accounts and outstanding receivables. OData REST API, OAuth 2.0, scoped to one administration.

HCBy HelpCode teamUpdated 3 min read Open-source on GitHub
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Exact Online

Exact Online

Exact Online — the Dutch accounting and ERP standard: accounts, sales and purchase invoices, items, stock, GL accounts and outstanding receivables. OData REST API, OAuth 2.0, scoped to one administration.

tools

10

Region

NL

Category

Accounting

Authentication

OAuth 2.0

Required env vars

EXACT_CLIENT_IDEXACT_CLIENT_SECRETEXACT_BASE_HOSTEXACT_DIVISION
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  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Skip the install. Get this working in under 2 minutes.

Start a free trial on cloud.anythingmcp.com, add the Exact Online in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.

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AnythingMCP is listed in Claude's connector directory: add it to Claude in one click (opens in a new tab), then sign in and choose which MCP servers Claude may use.

Summary

Exact Online — the Dutch accounting and ERP standard: accounts, sales and purchase invoices, items, stock, GL accounts and outstanding receivables. OData REST API, OAuth 2.0, scoped to one administration.

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Example prompts for Exact Online

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Exact Online · live via MCP
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Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Exact Online, paste your credentials, mint an MCP API key — done. No Docker, no git clone, no local server.

Exact Online + Claude

Exact Online — the Dutch accounting and ERP standard: accounts, sales and purchase invoices, items, stock, GL accounts and outstanding receivables. OData REST API, OAuth 2.0, scoped to one administration.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

EXACT_CLIENT_ID, EXACT_CLIENT_SECRET, EXACT_REFRESH_TOKEN, EXACT_BASE_HOST, EXACT_DIVISION

Step 1 — Get credentials

Getting a token

  1. Register an app in the Exact Online App Centre for your country (apps.exactonline.com). You receive a client id and client secret.
  2. Run the authorization-code flow once against your country's host. Keep the refresh token — Exact's access tokens last ten minutes, so the refresh token is the only value worth storing.
  3. Set EXACT_CLIENT_ID, EXACT_CLIENT_SECRET, EXACT_REFRESH_TOKEN, EXACT_BASE_HOST and EXACT_DIVISION.

…(continued in the in-app connector instructions)

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in Claude

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

Recommended path — works on claude.ai web without editing any config file.

  1. In Claude, open Customize → Connectors.
  2. Click +, then Add custom connector.
  3. Enter a name, e.g. Exact Online, and the remote MCP server URL https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID, then click Add.
  4. Click Connect and sign in to AnythingMCP (OAuth) to allow access.

All tools below appear in your chat — start typing prompts.

Available tools

ToolWhat it does
exact_online_get_meRead the authenticated user and, importantly, their CurrentDivision — the administration id every other path needs
exact_online_list_divisionsList the administrations (divisions) this account can reach, with their code, description and currency
exact_online_list_accountsList accounts — Exact's customers, suppliers and prospects — with their code, name, VAT number and status
exact_online_list_sales_invoicesList sales invoices with their number, date, account, amounts and status
exact_online_list_receivablesList outstanding receivables with their invoice number, account, due date and amount still open — the direct answer to 'who owes us money'
exact_online_list_purchase_invoicesList purchase invoices with their supplier, date, due date and amount — the payables side of the ledger
exact_online_list_itemsList items from the product catalogue with their code, description, sales price, cost price and unit
exact_online_list_stock_positionsRead current stock positions per item and warehouse — the availability answer, separate from the item master
exact_online_list_gl_accountsList general ledger accounts with their code, description, type and balance side, for questions that need the chart of accounts
exact_online_list_purchase_entriesList purchase entries (Inkoopboekingen): the bookkeeping record of every supplier invoice, with supplier, invoice number, entry and due…

FAQ

Does it work with Claude Code as well as Claude Desktop? Yes — point both at https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID.

Next steps

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