Connect your Twinfield administration to Gemini and ask your bookkeeping questions in plain language. The standard Gemini app cannot yet add its own connector, but through the Gemini CLI or Gemini Enterprise it can. This way you bring your Twinfield figures straight into Gemini.
Do you want to connect Twinfield with Gemini? That is possible, although it works a little differently than with the other AI tools. Custom connectors in the Gemini app are only available in the United States for now; in the Netherlands you set it up through the command line (for technical users) or through Gemini Enterprise.
Below you can read how to connect Gemini with Twinfield, which questions you can ask and what to pay attention to. Are you looking for the explanation of the connector itself, separate from an AI tool? You will find it in How does the Twinfield AI Connect connector work?
Does Gemini work with Twinfield?
Yes, with one caveat. Gemini works with Twinfield through Twinfield AI Connect, a connector based on MCP (Model Context Protocol) that lets AI tools pull data from other software safely. In the Gemini app you can now add custom connectors, but only in the United States, in English and with a personal Google account. In the Netherlands you add the connector through the command line or through Gemini Enterprise, where an administrator sets it up for the organisation.
Please note: since 18 June 2026 Google has replaced the Gemini CLI for free users and for Google AI Pro and Ultra with Antigravity CLI. With a business Gemini Code Assist licence or a paid Gemini API key the Gemini CLI keeps working as normal. Both variants are described below.
Connecting Twinfield with Gemini, step by step
This is the connector link you use as the server:
https://mcp-twinfield.iwebdevelopment.com
Custom connectors in the Gemini app are only available in the US for now. In the Netherlands this works through the command line (Antigravity CLI or Gemini CLI, for technical users) or through Gemini Enterprise.
Through the command line
1Install Antigravity CLI following Google's installation instructions. If you have a business Gemini Code Assist licence or a paid Gemini API key, you can also use the Gemini CLI.
2Add the connector to your MCP configuration under mcpServers, with the connector link as the server. In Antigravity CLI you do this in ~/.gemini/config/mcp_config.json:{
"mcpServers": {
"twinfield-ai-connect": {
"serverUrl": "https://mcp-twinfield.iwebdevelopment.com"
}
}
}Are you using the Gemini CLI? Then you place the connector in ~/.gemini/settings.json, with httpUrl instead of serverUrl:{
"mcpServers": {
"twinfield-ai-connect": {
"httpUrl": "https://mcp-twinfield.iwebdevelopment.com"
}
}
}
3Log in to Twinfield once and click Authorise. In Antigravity you start the login through Customizations → Authenticate in the settings and then paste the authorisation code back. In the Gemini CLI the login opens automatically in your browser as soon as you start the CLI. If that does not happen, type /mcp auth twinfield-ai-connect.
4Type /mcp to check whether the connector is active and ask your question.
Are you working with Gemini Enterprise? Then an administrator registers the connector as a custom MCP datastore with the connector link and OAuth. We are happy to help you with that.
What can you ask Gemini about your bookkeeping?
Once the connector is in place, you query your Twinfield administration in natural language. Gemini reads your figures and can, with your approval, also prepare actions. For example:
"Show my liquidity based on the outstanding items."
"Give an overview of my turnover per debtor this year."
"Which purchase invoices do I need to pay this week?"
"Prepare a journal entry for these costs."
So you retrieve and prepare, and you decide: Gemini first sets up a transaction or message as a draft and only posts it definitively in Twinfield after your approval. Everything the connector can do is described in How does the Twinfield AI Connect connector work?
Is the connector with Gemini secure?
Your administration stays in Twinfield. The authorisation runs through Twinfield itself, so you do not share a password and you can withdraw access whenever you want. How we safeguard security and privacy is explained in the general connector article.
Prefer a different AI assistant?
Twinfield AI Connect works with more than just Gemini. Prefer a different assistant? Check the explanation for Claude, ChatGPT, Microsoft Copilot or Perplexity.
Frequently asked questions
Not yet. The standard Gemini app only works with ready-made partner connectors and cannot add your own connector via a link. You can still connect yourself through the command line or, for organisations, through Gemini Enterprise.
The route through the Gemini CLI is mainly suitable for technical users. You add the connector link to your MCP configuration and then authorise with Twinfield. Keep in mind that Google is moving its CLI tooling to Antigravity CLI, so the exact commands may differ per version. If you get stuck, iWebDevelopment will help you on your way.
Then an administrator registers the connector once as a custom MCP datastore, with the connector link and OAuth. After that, users within the organisation can work directly with the Twinfield data without setting anything up themselves.
Yes, besides retrieving data Gemini can prepare actions such as a journal entry or a message. The connector first sets these up as a draft and only carries them out once you have approved them. Your administration simply stays in Twinfield.
You start with a 30-day free trial, so you can first test the connector with your own administration. After that you choose a subscription that fits your usage. For current rates you can contact iWebDevelopment.
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