An AI assistant that knows your bank accounts
Fizen connects Claude, ChatGPT and other AI assistants to your accounts in 40+ banks. Ask about balances, spending, incoming payments and summaries, and the assistant answers from your bank data. Read-only, with your consent, in a service supervised by the KNF.
Trusted by, among others:
Works with:
- Claude
- ChatGPT
- Gemini
- GitHub Copilot
- Cursor
- Le Chat
- Windsurf
- Grok
Three steps to your first question
- Step 01
Connect your bank on the Fizen website
Choose your bank, log in there and select the accounts. You confirm consent in the bank, and Fizen never sees your password.
- Step 02
Add Fizen to your assistant
In the settings of Claude, ChatGPT or another MCP-enabled assistant, add the https://mcp.fizen.com server and sign in to Fizen.
- Step 03
Ask in plain language
About balances, spending, customer payments or a monthly summary. The assistant answers from your account data.
Whose accounts do you connect?
The same access to account data, three kinds of plans.
- Your own accountsFor yourselfBalances, spending, bills and savings from all your banks in one assistant.PLN 0Personal planFizen for yourself
- Your company's accountsFor businesses and accounting firmsCustomer payments, overdue invoices, supplier spending and summaries for bookkeeping.from PLN 79a month, netFizen for businesses
- Your app users' accountsFor developersAn assistant with access to your users' accounts, through MCP, API and Fizen Connect, without your own AISP licence.from PLN 249a month, netFizen for developers
What the assistant can and cannot do
It can
- Check balances on the accounts you selected
- Search and summarise transactions
- Total spending by category and compare months
- Check whether a specific payment has arrived
- Prepare a summary for your accountant
It cannot
- Make a transfer or any other payment
- See your password or banking credentials
- Access accounts you did not select
- Keep working after you revoke consent or it expires
- Change any settings of your bank account
40+ banks in 6 Central and Eastern European countries
One integration gives you retail and business banks across the region.
Poland
15- Bank Pekao
- BNP Paribas
- ING Bank Śląski
- PKO Bank Polski
- Erste Bank Polska
- Alior Bank
- mBank
- Bank Millennium
- VeloBank
- Credit Agricole
- Bank Pocztowy
- BOŚ Bank
- Nest Bank
- Citi Handlowy
- Inteligo
Czech Republic
6- Raiffeisenbank
- UniCredit Bank (Testing)
- Komerční banka
- ČSOB
- Česká spořitelna
- MONETA Money Bank
Slovakia
6- Slovenská sporiteľňa
- Tatra banka
- Raiffeisen banka (Tatra banka)
- ČSOB
- UniCredit Bank
- Prima banka (Sandbox)
Hungary
7- Raiffeisen Bank (Testing)
- Erste Bank (Sandbox)
- UniCredit Bank (Sandbox)
- OTP Bank (In progress)
- K&H Bank (In progress)
- MBH Bank (MKB) (In progress)
- MTB Magyar Bank (In progress)
Romania
6- Raiffeisen Bank (Testing)
- UniCredit Bank (Sandbox)
- Banca Comercială Română (Sandbox)
- Banca Transilvania (Sandbox)
- BRD Groupe Société Générale (Sandbox)
- ING Bank (Bucharest branch) (Sandbox)
Lithuania
1- Revolut (Testing)
- Production
- Testing
- Sandbox
- In progress
MCP and API for account data
An MCP server for Claude, ChatGPT and your own agents, a REST API for balances and transactions, and the Fizen Connect widget for connecting banks. All read-only.
{ "mcpServers": { "fizen": { "type": "http", "url": "https://mcp.fizen.com" } }}curl "https://api.sandbox.fizen.com/[transactions list path]?accountId=[account ID]&dateFrom=2026-10-01" \ -H "apiKey: [YOUR_API_KEY]" \ -H "token: [YOUR_TOKEN]"Security and regulation
- Regulated service
- Fizen provides the account information service (AISP) under KNF supervision, register no. AISP13/2022. The assistant gets read-only data.
- PSD2 and GDPR
- Data only through the banks' official APIs, with the user's explicit consent, for the purpose they agreed to. We do not sell data.
- DORA and testing
- ICT risk register, incident reporting, annual penetration tests.
Ask your assistant about your accounts
The Personal plan is free: one bank, all your accounts in it and one AI assistant. You sign up with your Google account.