Business system connector
Private betaConnect Exact Online to ChatGPT and Claude with MCP
Give ChatGPT, Claude and other MCP clients governed, read-only access to your Exact Online accounting data through one Zynosure connection.
Availability: Private beta
The Exact Online connector is implemented as a read-only beta. Live provider qualification and the hosted OAuth rollout must finish before general availability.
Which customer invoices are more than 30 days overdue?
Zynosure returns the matching open invoices by currency, with the customer, due date, outstanding amount and age bucket. The AI client also receives the source and observation time used for the answer.
Illustrative response. Exact historical ageing is not claimed.
get_aged_receivables
Illustrative answer shape
- Invoice
- 2026-00421
- Customer
- Example Trading B.V.
- Outstanding
- EUR 8,450.00
- Age
- 31-60 days
- Source
- Exact Online receivables
- Observed
- 2026-07-15 14:32 UTC
- Freshness
- Live current-state read
- Operation
- get_aged_receivables
Reviewed operations, one REST and MCP contract
Every published operation uses the same schema, policy check and handler through both interfaces.
| Accounting data | List or search | Detail | MCP | REST |
|---|---|---|---|---|
| Customers and suppliers | Search | Get | Yes | Yes |
| GL accounts and cost centres | Search | Get | Yes | Yes |
| Sales and purchase invoices | List | Get + lines | Yes | Yes |
| General ledger transactions | List | Grouped entry | Yes | Yes |
| Receivables and payables | Current items | Age bucket | Yes | Yes |
| Trial balance and ageing | Report | By currency | Yes | Yes |
Questions you can prepare to ask
Examples are illustrative until the connector completes live qualification.
“Which customer invoices are more than 30 days overdue?”
“Show sales invoices for this month by customer.”
“What is the current trial balance for this division?”
“Which supplier invoices are still unpaid?”
“Show the source and freshness of this accounting record.”
How the connection works
- 01
Authorise Exact Online
An administrator connects approved Exact Online divisions through the provider OAuth flow.
- 02
Apply company policy
Zynosure determines which people, companies, administrations and read operations are available.
- 03
Connect your AI client
ChatGPT or Claude receives a policy-filtered MCP catalogue and calls the same reviewed operations as the REST API.
Read-only and policy controlled
- Read-only accounting and provider-native scopes
- OAuth credentials are never returned to the AI client
- Company and division access is checked for every operation
- The MCP catalogue only includes operations the caller may use
- Responses retain source provenance, observation time and freshness
AI client and API compatibility
Availability remains gated per client until its user-visible OAuth qualification is complete.
| Client | Interface | Status |
|---|---|---|
| ChatGPT | Remote MCP + OAuth | Qualification pending |
| Claude | Remote MCP + OAuth | Qualification pending |
| OpenAI and Claude APIs | Remote MCP | Private beta |
| Business applications | REST API | Private beta |
Why use Zynosure instead of a raw provider connection?
Zynosure preserves provider detail while adding a governed layer that can extend across the rest of the business.
Provider fidelity
Canonical accounting layer
Policy-filtered catalogue
What happens after you request access
You know the next step before sharing any provider credentials.
- 01
Short fit check
We review the connector, AI client, administration count and intended use without requesting provider credentials.
- 02
Agree qualification
Together we select an approved test administration, read-only scope and the questions that must be validated.
- 03
Guided onboarding
After provider and client qualification, we activate the connection and verify the first answers with provenance.
Frequently asked questions
What is an Exact Online MCP server?
An MCP server exposes reviewed Exact Online capabilities as typed tools that an authorised AI client can discover and call. Zynosure handles the provider connection, access policy and accounting response instead of asking the model to call Exact Online directly.
Can Zynosure change data in Exact Online?
No. The first release is read-only. It does not create, update or delete invoices, transactions, accounts or other Exact Online records.
Does it work with more than one Exact Online division?
The connector discovers authorised divisions and keeps access company-scoped. Which divisions a user or AI client can read is determined by Zynosure policy.
Is there a REST API as well as MCP?
Yes. Reviewed data operations have matching REST and MCP bindings over the same schema, policy checks and handler. Raw or arbitrary OData calls are not exposed.
Can I connect both ChatGPT and Claude?
Zynosure is designed for remote MCP clients including ChatGPT and Claude. User-visible OAuth testing remains part of the private-beta qualification process.
Join the connector beta
Tell us which accounting system and AI client you want to connect. We will contact you when the relevant private-beta place is available.
Book a technical walkthrough
For security reviews, multiple administrations or a planned API integration, discuss the architecture and qualification path directly.
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