Connectors · Accounting & finance

Exact Online MCP server for AI agents.

actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Exact Online and the rest of your systems. It gives your agent 1,043 Exact Online actions (689 reads, 256 writes and 98 that wait for a confirmation) and holds the Exact Online credential itself, so the agent never does. It paces Exact Online's limits and records every call. Connecting Exact Online needs your own Exact Online OAuth app and one admin sign-in.

Connect Exact Online free See pricing

100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.

claude mcp add --transport http actionlake https://connect.actionlake.com/mcp

the first call

do {  action: "exact_online.salesinvoice_sales_invoices.list",  intent: "check which Exact Online account is connected"}# List sales invoices (SalesInvoice) · read · 1 upstream call

1,043actionsin one signed file
689readlook, never change
256writecreate and update
98wait for a yesdestructive, confirmed first

Set up

Connect Exact Online in three steps.

01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp
02
Connect Exact Online.
OAuth 2.0, authorization code. You register your own OAuth app with Exact Online, an admin signs in once, and you paste the app's client id and secret and the tokens from that sign-in; actionlake renews the access token from then on. actionlake stores what you paste write-only, sealed under your tenant's key.
Before the first sign-in, Exact Online needs an OAuth app of your own, registered in its developer portal. actionlake has no Exact Online app to lend you.
- access_tokenAccess token from one sign-in with your own OAuth app
- refresh_tokenRefresh token from the same sign-in; the access token is renewed from it
- client_idExact Online App Center client ID (register the app for your country site; set the connection's `host` to that site,…
- client_secretExact Online App Center client secret
- divisionYour Exact Online division
- hostWhere your Exact Online lives: your host
```
account { op: "connections.requirements", service: "exact_online" }
# free: exactly what to paste, and what is found for you
```

Make the first call. Check before a write.

Ask in plain words; Claude picks the action. Before anything changes, check validates the call and prices it, for free.

do    { action: "exact_online.salesinvoice_sales_invoices.list" }# list sales invoices (salesinvoice) · read · 1 upstream callcheck { action: "exact_online.salesinvoice_sales_invoices.create", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent

Exact Online at a glance

Sign-in: OAuth 2.0, authorization code. You register your own OAuth app with Exact Online, an admin signs in once, and you paste the app's client id and secret and the tokens from that sign-in; actionlake renews the access token from then on.
You provide: access_tokenrefresh_tokenclient_idclient_secret
Setup fields: divisionhost
Limits we pace to: 60 calls a minute and 5,000 a day, per connection
API covered: Exact Online REST API v1 (OData v2)start.exactonline.nl
Built from: Exact Online's documentation, read 23 October 2026start.exactonline.nl support.exactonline.com
Service file: Version 1.0.0, signed (Ed25519)
Cached reads: 689 of 689 reads, for up to 15 minutes; a write clears what it affects
Shared entities: 8, so ask can line Exact Online up with your other systems
Data: Processed and stored in Sydney, Australia. No US region yet

Capabilities

What an AI agent can do in Exact Online.

1,043 actions in 35 areas. Every one carries its effect, so a key can allow the reads and hold the rest.

689readlook, never change
256writecreate and update
98destructivewait for a confirmation

Project
167
113 read · 36 write · 18 destructive
List projects (Project) · Create projects (Project) · Get projects (Project) · Update projects (Project)
Manufacturing
103
56 read · 35 write · 12 destructive
Create bill of material materials (Manufacturing) · List bill of material materials (Manufacturing) · Create bill of material routings (Manufacturing) · List bill of material routings (Manufacturing)
CRM
73
42 read · 23 write · 8 destructive
List quotations (CRM) · List contacts (CRM) · List accounts (CRM) · Create quotations (CRM)
Financial
72
58 read · 10 write · 4 destructive
List gl accounts (Financial) · Create gl accounts (Financial) · Get gl accounts (Financial) · Update gl accounts (Financial)
Inventory
65
32 read · 23 write · 10 destructive
List warehouses (Inventory) · Create warehouses (Inventory) · Get warehouses (Inventory) · Update warehouses (Inventory)
Sync
62
62 read · 0 write · 0 destructive
List sync timestamp (Sync) · List payment terms (Sync) · List accounts (Sync) · List addresses (Sync)
Logistics
45
33 read · 8 write · 4 destructive
List items (Logistics) · Create items (Logistics) · Get items (Logistics) · Update items (Logistics)
Sales order
44
18 read · 21 write · 5 destructive
List sales orders (SalesOrder) · Create sales orders (SalesOrder) · Get sales orders (SalesOrder) · Update sales orders (SalesOrder)

27 more areas · 412 actions

HRM 36
Accountancy 34
Payroll 30
Cashflow 28
Documents 26
Purchase order 25
Subscription 24
Activities 23
Bulk 21
Sales invoice 21
Sales 17
Financial transaction 16
Mailbox 16
System 12
Assets 11
Purchase entry 10
Sales entry 10
Opening balance 8
Purchase 8
General journal entry 7
Vat 7
Users 5
Webhooks 5
Budget 4
General 4
Custom field 2
Workflow 2

Top actions

The Exact Online API, shaped for agents.

The ids your agent types, what each does, and the one name it shares with other systems. 84 of Exact Online's 84 action names are shared with at least one other connector, so an agent learns them once.

Action	What it does	Effect	Same name in
`exact_online.salesinvoice_sales_invoices.list`List sales invoices (SalesInvoice)	Use this endpoint to create, read, update and delete sales invoices or direct sales invoices	read	`finance.invoice.list`101 connectors
`exact_online.crm_quotations.list`List quotations (CRM)	List quotations.	read	`finance.quote.list`52 connectors
`exact_online.purchase_purchase_invoices.list`List purchase invoices (Purchase)	Use this endpoint to create, read, update and delete purchase invoices	read	`finance.bill.list`31 connectors
`exact_online.salesorder_sales_orders.list`List sales orders (SalesOrder)	Use this endpoint to create, read, update and delete sales orders	read	`commerce.order.list`82 connectors
`exact_online.salesinvoice_sales_invoices.create`Create sales invoices (SalesInvoice)	Use this endpoint to create, read, update and delete sales invoices or direct sales invoices	write	`finance.invoice.create`74 connectors
`exact_online.crm_contacts.list`List contacts (CRM)	List contacts.	read	`crm.contact.list`177 connectors
`exact_online.crm_accounts.list`List accounts (CRM)	List accounts.	read	`crm.company.list`162 connectors
`exact_online.crm_quotations.create`Create quotations (CRM)	Create quotations.	write	`finance.quote.create`52 connectors
`exact_online.project_projects.list`List projects (Project)	Use this endpoint to create, read, update and delete projects	read	`work.project.list`109 connectors
`exact_online.purchase_purchase_invoices.create`Create purchase invoices (Purchase)	Use this endpoint to create, read, update and delete purchase invoices	write	`finance.bill.create`28 connectors
`exact_online.salesorder_sales_orders.create`Create sales orders (SalesOrder)	Use this endpoint to create, read, update and delete sales orders	write	`commerce.order.create`67 connectors
`exact_online.salesinvoice_sales_invoices.delete`Delete sales invoices (SalesInvoice)	Delete one sales invoices record.	destructive	`finance.invoice.delete`56 connectors

Try it

Prompts to paste into Claude.

Each one names the Exact Online actions it will call, so you know what it reads and what it changes before you send it.

Readread
Which Exact Online invoices are more than 30 days overdue? Group them by customer with the total owed.
callsexact_online.salesinvoice_sales_invoices.list
Writewrite
Create sales invoices (SalesInvoice) in Exact Online. Show me exactly what you will send before you save it.
callsexact_online.salesinvoice_sales_invoices.create
Across systemsread
For each customer, how many invoices are in Exact Online and how many tickets in ConnectWise PSA?
callsexact_online.salesinvoice_sales_invoices.listconnectwise_manage.tickets.list

Across your systems

Exact Online, joined to the rest of your business.

One ask fetches from Exact Online and another system, joins the rows on the same customer on our side, and hands your agent the answer, not every row.

For each customer, how many invoices are in Exact Online and how many tickets in ConnectWise PSA?
exact_online.salesinvoice_sales_invoices.list + connectwise_manage.tickets.list, on crm.company · ConnectWise PSA
For each customer, how many invoices are in Exact Online and how many tickets in HubSpot CRM?
exact_online.salesinvoice_sales_invoices.list + hubspot_crm.tickets.list, on crm.company · HubSpot CRM

Also mapped by other connectorscrm.company 227crm.contact 192work.project 116finance.invoice 91commerce.order 86hr.employee 63finance.quote 45finance.bill 27

ask

ask {  intent: "for each customer, how many invoices are in Exact Online and how many tickets in ConnectWise PSA",  steps: [    { action: "exact_online.salesinvoice_sales_invoices.list", as: "inv", input: {}, limit: 100, max_pages: 5 },    { action: "connectwise_manage.tickets.list", as: "tix", input: {}, limit: 100, max_pages: 5 },    { join: {        left: "inv",        right: "tix",        on: "crm.company",        group_by: "inv.company_name",        select: ["inv.company_name", "count(inv.id) as invoices", "count(tix.id) as tickets"]    } }  ]}

Example. Run it through check first: it validates the steps and prices them, and it is free.

Governance for Exact Online

Destructive actions wait for a yes.

98 Exact Online actions are destructive. The first 10:

Delete sales invoices (SalesInvoice)exact_online.salesinvoice_sales_invoices.delete
Delete quotations (CRM)exact_online.crm_quotations.delete
Delete purchase invoices (Purchase)exact_online.purchase_purchase_invoices.delete
Delete sales orders (SalesOrder)exact_online.salesorder_sales_orders.delete
Delete contacts (CRM)exact_online.crm_contacts.delete
Delete accounts (CRM)exact_online.crm_accounts.delete
Delete projects (Project)exact_online.project_projects.delete
Delete purchase orders (PurchaseOrder)exact_online.purchaseorder_purchase_orders.delete
Delete gl accounts (Financial)exact_online.financial_gl_accounts.delete
Delete items (Logistics)exact_online.logistics_items.delete

A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.

doexact_online.salesinvoice_sales_invoices.deleteconfirm_policy: human

Delete sales invoices (SalesInvoice)?

intent: the user asked me to delete sales invoices (SalesInvoice)

run suspended · waiting for a named person · key exact-online-agent cannot confirm itself

In the console, or from an emailed signed link.

a key for this connector

account {  op: "keys.create", name: "exact-online-agent",  allowed_actions: ["exact_online.*"], cap_calls: 2000,  confirm_policy: "human_for_writes",  approval_rules: [    { match: "exact_online.salesinvoice_sales_invoices.delete", approver: "[email protected]" },    { match: "exact_online.crm_quotations.delete", approver: "[email protected]" },    { match: "exact_online.purchase_purchase_invoices.delete", approver: "[email protected]" }  ]}

Illustrative. Scoped to Exact Online only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person.

Cost

What Exact Online costs on actionlake.

Every Exact Online action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Exact Online refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

1upstream call per actionall 1,043 Exact Online actions
412actions pageeach page of a long list is one call
689reads can be cacheda cache hit costs nothing
100,000calls a month, freepaid plans from US$49 a month for 250,000

See pricing

Action index

Every Exact Online action.

1,043 actions by area: the id your agent calls, what it does, and its effect.

Project167

exact_online.project_projects.createCreate projects (Project)write
exact_online.project_projects.getGet projects (Project)read
exact_online.project_projects.listList projects (Project)read
exact_online.project_projects.updateUpdate projects (Project)write
exact_online.project_cost_transactions.createCreate cost transactions (Project)write
exact_online.project_cost_transactions.deleteDelete cost transactions (Project)destructive
and 161 more in this area

Manufacturing103

exact_online.manufacturing_bill_of_material_materials.createCreate bill of material materials (Manufacturing)write
exact_online.manufacturing_bill_of_material_materials.listList bill of material materials (Manufacturing)read
exact_online.manufacturing_bill_of_material_routings.createCreate bill of material routings (Manufacturing)write
exact_online.manufacturing_bill_of_material_routings.listList bill of material routings (Manufacturing)read
exact_online.manufacturing_bill_of_material_materials.deleteDelete bill of material materials (Manufacturing)destructive
exact_online.manufacturing_bill_of_material_materials.getGet bill of material materials (Manufacturing)read
and 97 more in this area

CRM73

exact_online.crm_accounts.listList accounts (CRM)read
exact_online.crm_contacts.listList contacts (CRM)read
exact_online.crm_quotations.createCreate quotations (CRM)write
exact_online.crm_quotations.listList quotations (CRM)read
exact_online.crm_accept_quotation.createRun accept quotation (CRM)write
exact_online.crm_account_classes.getGet account classes (CRM)read
and 67 more in this area

Financial72

exact_online.financial_gl_accounts.createCreate gl accounts (Financial)write
exact_online.financial_gl_accounts.getGet gl accounts (Financial)read
exact_online.financial_gl_accounts.listList gl accounts (Financial)read
exact_online.financial_gl_accounts.updateUpdate gl accounts (Financial)write
exact_online.financial_deductibility_percentages.getGet deductibility percentages (Financial)read
exact_online.financial_deductibility_percentages.listList deductibility percentages (Financial)read
and 66 more in this area

Inventory65

exact_online.inventory_warehouses.createCreate warehouses (Inventory)write
exact_online.inventory_warehouses.getGet warehouses (Inventory)read
exact_online.inventory_warehouses.listList warehouses (Inventory)read
exact_online.inventory_warehouses.updateUpdate warehouses (Inventory)write
exact_online.inventory_assembly_bill_of_material_header.createCreate assembly bill of material header (Inventory)write
exact_online.inventory_assembly_bill_of_material_header.deleteDelete assembly bill of material header (Inventory)destructive
and 59 more in this area

Sync62

exact_online.read_sync_sync_sync_timestamp.listList sync timestamp (Sync)read
exact_online.sync_cashflow_payment_terms.listList payment terms (Sync)read
exact_online.sync_crm_accounts.listList accounts (Sync)read
exact_online.sync_crm_addresses.listList addresses (Sync)read
exact_online.sync_crm_bank_accounts.listList bank accounts (Sync)read
exact_online.sync_crm_contacts.listList contacts (Sync)read
and 56 more in this area

Logistics45

exact_online.logistics_items.createCreate items (Logistics)write
exact_online.logistics_items.getGet items (Logistics)read
exact_online.logistics_items.listList items (Logistics)read
exact_online.logistics_items.updateUpdate items (Logistics)write
exact_online.logistics_customer_items.createCreate customer items (Logistics)write
exact_online.logistics_customer_items.deleteDelete customer items (Logistics)destructive
and 39 more in this area

Sales order44

exact_online.salesorder_sales_orders.createCreate sales orders (SalesOrder)write
exact_online.salesorder_sales_orders.getGet sales orders (SalesOrder)read
exact_online.salesorder_sales_orders.listList sales orders (SalesOrder)read
exact_online.salesorder_sales_orders.updateUpdate sales orders (SalesOrder)write
exact_online.salesorder_complete_sales_order.createRun complete sales order (SalesOrder)write
exact_online.salesorder_complete_sales_order_line.createRun complete sales order line (SalesOrder)write
and 38 more in this area

HRM36

exact_online.hrm_absence_registration_transactions.listList absence registration transactions (HRM)read
exact_online.hrm_absence_registrations.listList absence registrations (HRM)read
exact_online.hrm_departments.getGet departments (HRM)read
exact_online.hrm_departments.listList departments (HRM)read
exact_online.hrm_absence_registration_transactions.getGet absence registration transactions (HRM)read
exact_online.hrm_absence_registrations.getGet absence registrations (HRM)read
and 30 more in this area

Accountancy34

exact_online.accountancy_account_involved_accounts.createCreate account involved accounts (Accountancy)write
exact_online.accountancy_account_involved_accounts.listList account involved accounts (Accountancy)read
exact_online.accountancy_account_owners.createCreate account owners (Accountancy)write
exact_online.accountancy_account_owners.listList account owners (Accountancy)read
exact_online.accountancy_account_involved_accounts.deleteDelete account involved accounts (Accountancy)destructive
exact_online.accountancy_account_involved_accounts.getGet account involved accounts (Accountancy)read
and 28 more in this area

Payroll30

exact_online.payroll_active_employments.listList active employments (Payroll)read
exact_online.payroll_employees.getGet employees (Payroll)read
exact_online.payroll_employees.listList employees (Payroll)read
exact_online.payroll_employment_condition_groups.listList employment condition groups (Payroll)read
exact_online.payroll_active_employments.getGet active employments (Payroll)read
exact_online.payroll_employment_condition_groups.getGet employment condition groups (Payroll)read
and 24 more in this area

Cashflow28

exact_online.cashflow_payments.getGet payments (Cashflow)read
exact_online.cashflow_payments.listList payments (Cashflow)read
exact_online.cashflow_payments.updateUpdate payments (Cashflow)write
exact_online.cashflow_receivables.listList receivables (Cashflow)read
exact_online.cashflow_allocation_rule.createCreate allocation rule (beta) (Cashflow)write
exact_online.cashflow_allocation_rule.deleteDelete allocation rule (beta) (Cashflow)destructive
and 22 more in this area

Documents26

exact_online.documents_document_attachments.createCreate document attachments (Documents)write
exact_online.documents_document_attachments.listList document attachments (Documents)read
exact_online.documents_document_categories.listList document categories (Documents)read
exact_online.documents_document_folders.createCreate document folders (Documents)write
exact_online.documents_document_attachments.deleteDelete document attachments (Documents)destructive
exact_online.documents_document_attachments.getGet document attachments (Documents)read
and 20 more in this area

Purchase order25

exact_online.purchaseorder_purchase_orders.createCreate purchase orders (PurchaseOrder)write
exact_online.purchaseorder_purchase_orders.getGet purchase orders (PurchaseOrder)read
exact_online.purchaseorder_purchase_orders.listList purchase orders (PurchaseOrder)read
exact_online.purchaseorder_purchase_orders.updateUpdate purchase orders (PurchaseOrder)write
exact_online.purchaseorder_goods_receipt_lines.createCreate goods receipt lines (PurchaseOrder)write
exact_online.purchaseorder_goods_receipt_lines.getGet goods receipt lines (PurchaseOrder)read
and 19 more in this area

Subscription24

exact_online.subscription_subscriptions.createCreate subscriptions (Subscription)write
exact_online.subscription_subscriptions.getGet subscriptions (Subscription)read
exact_online.subscription_subscriptions.listList subscriptions (Subscription)read
exact_online.subscription_subscriptions.updateUpdate subscriptions (Subscription)write
exact_online.subscription_subscription_line_types.getGet subscription line types (Subscription)read
exact_online.subscription_subscription_line_types.listList subscription line types (Subscription)read
and 18 more in this area

Activities23

exact_online.activities_annual_statements.createCreate annual statements (Activities)write
exact_online.activities_annual_statements.listList annual statements (Activities)read
exact_online.activities_communication_notes.createCreate communication notes (Activities)write
exact_online.activities_communication_notes.listList communication notes (Activities)read
exact_online.activities_annual_statements.getGet annual statements (Activities)read
exact_online.activities_annual_statements.updateUpdate annual statements (Activities)write
and 17 more in this area

Bulk21

exact_online.bulk_cashflow_payments.listList payments (Bulk)read
exact_online.bulk_cashflow_receivables.listList receivables (Bulk)read
exact_online.bulk_crm_accounts.listList accounts (Bulk)read
exact_online.bulk_crm_addresses.listList addresses (Bulk)read
exact_online.bulk_crm_contacts.listList contacts (Bulk)read
exact_online.bulk_crm_quotation_lines.listList quotation lines (Bulk)read
and 15 more in this area

Sales invoice21

exact_online.salesinvoice_sales_invoices.createCreate sales invoices (SalesInvoice)write
exact_online.salesinvoice_sales_invoices.getGet sales invoices (SalesInvoice)read
exact_online.salesinvoice_sales_invoices.listList sales invoices (SalesInvoice)read
exact_online.salesinvoice_sales_invoices.updateUpdate sales invoices (SalesInvoice)write
exact_online.read_salesinvoice_invoice_sales_order_result.listList invoice sales order result (SalesInvoice)read
exact_online.salesinvoice_invoice_sales_orders.createRun invoice sales orders (SalesInvoice)write
and 15 more in this area

Sales17

exact_online.sales_order_charges.listList order charges (Sales)read
exact_online.sales_sales_channels.createCreate sales channels (Sales)write
exact_online.sales_sales_channels.listList sales channels (Sales)read
exact_online.sales_sales_price_list_linked_accounts.listList sales price list linked accounts (Sales)read
exact_online.sales_order_charges.getGet order charges (Sales)read
exact_online.sales_sales_channels.deleteDelete sales channels (Sales)destructive
and 11 more in this area

Financial transaction16

exact_online.financialtransaction_bank_entries.createCreate bank entries (FinancialTransaction)write
exact_online.financialtransaction_bank_entries.listList bank entries (FinancialTransaction)read
exact_online.financialtransaction_bank_entry_lines.createCreate bank entry lines (FinancialTransaction)write
exact_online.financialtransaction_bank_entry_lines.listList bank entry lines (FinancialTransaction)read
exact_online.financialtransaction_bank_entries.deleteDelete bank entries (FinancialTransaction)destructive
exact_online.financialtransaction_bank_entries.getGet bank entries (FinancialTransaction)read
and 10 more in this area

Mailbox16

exact_online.mailbox_mail_message_attachments.createCreate mail message attachments (Mailbox)write
exact_online.mailbox_mail_message_attachments.listList mail message attachments (Mailbox)read
exact_online.mailbox_mail_messages_sent.createCreate mail messages sent (Mailbox)write
exact_online.mailbox_mail_messages_sent.listList mail messages sent (Mailbox)read
exact_online.mailbox_mail_message_attachments.getGet mail message attachments (Mailbox)read
exact_online.mailbox_mail_messages_sent.getGet mail messages sent (Mailbox)read
and 10 more in this area

System12

exact_online.current_me.getGet the current user (Me)read
exact_online.system_divisions.deleteDelete divisions (System)destructive
exact_online.system_divisions.getGet divisions (System)read
exact_online.system_divisions.listList divisions (System)read
exact_online.system_accountant_info.getGet accountant info (System)read
exact_online.system_accountant_info.listList accountant info (System)read
and 6 more in this area

Assets11

exact_online.assets_asset_groups.listList asset groups (Assets)read
exact_online.assets_assets.listList assets (Assets)read
exact_online.assets_commercial_building_values.listList commercial building values (Assets)read
exact_online.assets_depreciation_methods.createCreate depreciation methods (Assets)write
exact_online.assets_asset_groups.getGet asset groups (Assets)read
exact_online.assets_assets.getGet assets (Assets)read
and 5 more in this area

Purchase entry10

exact_online.purchaseentry_purchase_entries.createCreate purchase entries (PurchaseEntry)write
exact_online.purchaseentry_purchase_entries.listList purchase entries (PurchaseEntry)read
exact_online.purchaseentry_purchase_entry_lines.createCreate purchase entry lines (PurchaseEntry)write
exact_online.purchaseentry_purchase_entry_lines.listList purchase entry lines (PurchaseEntry)read
exact_online.purchaseentry_purchase_entries.deleteDelete purchase entries (PurchaseEntry)destructive
exact_online.purchaseentry_purchase_entries.getGet purchase entries (PurchaseEntry)read
and 4 more in this area

Sales entry10

exact_online.salesentry_sales_entries.createCreate sales entries (SalesEntry)write
exact_online.salesentry_sales_entries.listList sales entries (SalesEntry)read
exact_online.salesentry_sales_entry_lines.createCreate sales entry lines (SalesEntry)write
exact_online.salesentry_sales_entry_lines.listList sales entry lines (SalesEntry)read
exact_online.salesentry_sales_entries.deleteDelete sales entries (SalesEntry)destructive
exact_online.salesentry_sales_entries.getGet sales entries (SalesEntry)read
and 4 more in this area

Opening balance8

exact_online.openingbalance_current_year_after_entry.listList after entry (OpeningBalance)read
exact_online.openingbalance_current_year_processed.listList processed (OpeningBalance)read
exact_online.openingbalance_previous_year_after_entry.listList after entry (OpeningBalance)read
exact_online.openingbalance_previous_year_processed.listList processed (OpeningBalance)read
exact_online.openingbalance_current_year_after_entry.getGet after entry (OpeningBalance)read
exact_online.openingbalance_current_year_processed.getGet processed (OpeningBalance)read
and 2 more in this area

Purchase8

exact_online.purchase_purchase_invoices.createCreate purchase invoices (Purchase)write
exact_online.purchase_purchase_invoices.getGet purchase invoices (Purchase)read
exact_online.purchase_purchase_invoices.listList purchase invoices (Purchase)read
exact_online.purchase_purchase_invoices.updateUpdate purchase invoices (Purchase)write
exact_online.purchase_purchase_invoice_lines.createCreate purchase invoice lines (Purchase)write
exact_online.purchase_purchase_invoice_lines.getGet purchase invoice lines (Purchase)read
and 2 more in this area

General journal entry7

exact_online.generaljournalentry_general_journal_entries.createCreate general journal entries (GeneralJournalEntry)write
exact_online.generaljournalentry_general_journal_entries.deleteDelete general journal entries (GeneralJournalEntry)destructive
exact_online.generaljournalentry_general_journal_entries.getGet general journal entries (GeneralJournalEntry)read
exact_online.generaljournalentry_general_journal_entries.listList general journal entries (GeneralJournalEntry)read
exact_online.generaljournalentry_general_journal_entry_lines.createCreate general journal entry lines (GeneralJournalEntry)write
exact_online.generaljournalentry_general_journal_entry_lines.getGet general journal entry lines (GeneralJournalEntry)read
and 1 more in this area

Vat7

exact_online.vat_vat_codes.createCreate vat codes (VAT)write
exact_online.vat_vat_codes.getGet vat codes (VAT)read
exact_online.vat_vat_codes.listList vat codes (VAT)read
exact_online.vat_vat_codes.updateUpdate vat codes (VAT)write
exact_online.vat_vat_codes.deleteDelete vat codes (VAT)destructive
exact_online.vat_vat_percentages.getGet vat percentages (VAT)read
and 1 more in this area

Users5

exact_online.users_user_has_rights.getGet user has rights (Users)read
exact_online.users_user_roles.getGet user roles (Users)read
exact_online.users_user_roles.listList user roles (Users)read
exact_online.users_user_roles_per_division.listList user roles per division (Users)read
exact_online.users_user_roles_per_division.getGet user roles per division (Users)read

Webhooks5

exact_online.webhooks_webhook_subscriptions.createCreate webhook subscriptions (Webhooks)write
exact_online.webhooks_webhook_subscriptions.getGet webhook subscriptions (Webhooks)read
exact_online.webhooks_webhook_subscriptions.listList webhook subscriptions (Webhooks)read
exact_online.webhooks_webhook_subscriptions.updateUpdate webhook subscriptions (Webhooks)write
exact_online.webhooks_webhook_subscriptions.deleteDelete webhook subscriptions (Webhooks)destructive

Budget4

exact_online.budget_budget_scenarios.getGet budget scenarios (beta) (Budget)read
exact_online.budget_budget_scenarios.listList budget scenarios (beta) (Budget)read
exact_online.budget_budgets.getGet budgets (Budget)read
exact_online.budget_budgets.listList budgets (Budget)read

General4

exact_online.general_currencies.getGet currencies (General)read
exact_online.general_currencies.listList currencies (General)read
exact_online.general_layouts.getGet layouts (General)read
exact_online.general_layouts.listList layouts (General)read

Custom field2

exact_online.customfield_custom_fields.listList custom fields (CustomField)read
exact_online.customfield_update_custom_field.createRun update custom field (CustomField)write

Workflow2

exact_online.workflow_request_attachments.getGet request attachments (beta) (Workflow)read
exact_online.workflow_request_attachments.listList request attachments (beta) (Workflow)read

This index shows a sample of each area. All 1,043 actions, with their inputs and prices, are in the catalogue, which a free sandbox key can search.

Questions

The Exact Online MCP server, answered.

Is there an Exact Online MCP server for Claude?

Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 1,043 Exact Online actions across project, manufacturing, CRM and financial, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Exact Online.

What do I need to connect Exact Online?

Your own Exact Online OAuth app, registered with Exact Online (its client id and client secret), and the access and refresh tokens from one admin sign-in. actionlake has no Exact Online app of its own, so this is not a one-step consent. actionlake renews the access token as it expires. Plus your division and your host. The free call account { op: "connections.requirements", service: "exact_online" } lists exactly what to paste.

Can an AI agent delete or change things in Exact Online?

Only if its key allows it, and only with an explicit confirmation. 98 Exact Online actions are destructive, including delete sales invoices (SalesInvoice), delete quotations (CRM) and delete purchase invoices (Purchase). Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.

Will an AI agent use up my Exact Online API limit?

actionlake paces every call to the limits in the Exact Online service file: 60 calls a minute and 5,000 a day per connection. Repeated reads are answered from cache (689 Exact Online actions can be), which never reaches Exact Online.

What does an Exact Online action cost?

One upstream call, the only unit actionlake bills. A list that pages bills one call per page (412 Exact Online actions page). Cache hits, searches, dry runs and calls Exact Online refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

Which Exact Online API does it cover?

The Exact Online REST API v1 (OData v2) at start.exactonline.nl by default, or the base URL set when you connect. It is built from Exact Online's documentation as read on 23 October 2026. 1,043 actions in 35 areas, each one in the signed service file (version 1.0.0).

Can I combine Exact Online with my other systems?

Yes. ask joins Exact Online to ConnectWise PSA or HubSpot CRM on the same customer and returns the answer rather than every row. Exact Online maps crm.company, which 227 other connectors also map.

Does actionlake keep my Exact Online data, and where?

actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 15 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Exact Online credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.

Which AI clients can use it?

Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.

Give your agent Exact Online today.

Connect Exact Online free See pricing

Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.

Exact Online MCP server for AI agents.

Connect Exact Online in three steps.

Add actionlake to Claude.

Connect Exact Online.

Make the first call. Check before a write.

What an AI agent can do in Exact Online.

Project

Manufacturing

CRM

Financial

Inventory

Sync

Logistics

Sales order