Zenith
NLB logo
Bank sync · Croatia
APIGoogle SheetsMCP (Claude, Codex)

NLB API for transactions and balances.

Connect NLB in 5 minutes and stream your bank data to Google Sheets, your own app, or Claude (MCP).

  • 5 minutes setup. No complicated steps
  • Multiple daily refreshes
  • Developer friendly API docs
Connect bank Read the API docs
Only €5 per account / month Money back guarantee read-only · PSD2 · EUR
NLB logo
NLB
NLB d.d.
Supported
Country
Croatia flag Croatia
BIC/SWIFT
LJBAHR2X
Bank type
retail+poslovni
Access
Read-only, PSD2
Transaction history
730 days

Maximum number of days Zenith can access transactions from the moment of connection onward.

Supported account types
Business accountsPersonal accountsCorporate accounts
Website
www.nlb.si
DestinationsSheets · API · MCP · CSV
How to connect

How to connect NLB

Connecting your NLB account to Zenith takes a few minutes, over a secure read-only connection.

  1. 1

    Create an account

    Sign up for Zenith — it takes less than a minute.

    Step 1 of bank connection: enter your business details in the Zenith setup form including company name, VAT ID, address, and country.
  2. 2

    Find your bank

    Choose your country, then NLB.

    Connect your bank — select your bank and country to continue
  3. 3

    Connect your bank account

    We send you to your bank's own login page, where you approve access.

    • You log in with your online or mobile banking
    • Follow the bank's prompts; access is read-only for transactions.
    Step 3 of bank connection: securely authenticate with your bank's PSD2 service; Zenith only receives read-only transaction data and never stores your credentials.
  4. 4

    Back to Zenith

    After login we bring you back automatically. Your balance shows as soon as the account is connected.

    Step 4 of bank connection: your bank account is securely connected and Zenith shows your total balance, accounts connected, available transaction history, and a first look at your synced expenses.
  5. 5

    Set up payment

    The connection costs just €5 per bank account per month.

    Step 5 of bank connection: set up your Zenith billing account, confirm your company details, and add a payment method to start syncing.
  6. 6

    Transactions start arriving

    Within minutes your first transactions appear in Zenith.

    • We refresh the data several times a day
    • Most banks allow up to four refreshes a day
    Step 6 of bank connection: transactions start flowing into the Zenith cashflow dashboard with multi-account balance history and real-time cash-in, cash-out insights.
  7. 7

    Choose where your data goes

    Send your data to the tools you already use.

    • Sync with Google Sheets
    • Access via API (clean JSON)
    • MCP connector for Claude or Codex
    Step 7 of bank connection: choose where your data goes — API, Google Sheets, or Claude and Codex via the Zenith MCP server.
About the bank

About NLB

NLB is part of the NLB Group, one of the leading banking groups in South-Eastern Europe, headquartered in Ljubljana. The group provides banking services to individuals and companies across several markets in the region.

Connection specifics

Dio NLB Grupe, jedne od vodećih bankarskih grupa u jugoistočnoj Europi.

Bank in other countries

NLB operates across several South-Eastern European markets through the NLB Group. If you use NLB in another country, you can connect your account there too.

One connection, every destination

Your bank data, wherever your work happens. Connect once, then send it to a spreadsheet, an AI assistant or your own product.

Google Sheets

Live transactions in your spreadsheet.

Bank data lands in Google Sheets and refreshes on your schedule. Build budgets, dashboards and models on numbers that are always current, in a sheet you own.

  • Auto-refreshed on the schedule you set
  • Date, counterparty, amount, balance, category
  • Every bank and account in one sheet
cash-flow-2026 synced
DateCounterpartyAmount
24 JunNotion Labs−€18.00
23 JunStripe payout+€4,120.40
22 JunAWS Europe−€312.55
21 JunDeel payroll−€8,940.00
20 JunCustomer DE+€2,400.00
Claude (MCP)

Ask Claude about your bank account.

Zenith's MCP connector lets Claude and other AI assistants read your transactions. Read-only: they can see your data, never move money.

What did I spend on software last quarter?
€3,847.20 across 12 SaaS vendors in Q2. Biggest: AWS Europe €1,128.40, Notion €612.00.
Your app (API)

One API for 2,400 European banks.

Transactions, balances and account details through one clean integration, not one per bank. Prefer files? Schedule a CSV export.

terminal
curl $ZENITH_API/v1/transactions \
  -H "Authorization: Bearer $KEY"
Cash position

Always know your true cash position.

Available cash across every bank account and currency, credit lines included, so you know exactly how much capital the business has today.

Available today€93,360
  • NLB Banka€42,108
  • Revolut Business€18,940
  • Deutsche Bank€7,312
  • Credit line€25,000
For developers

From token to transactions in two calls.

A read-only REST API over plain HTTPS and JSON. Predictable schema, cursor pagination and a machine-readable OpenAPI contract.

  • GET /transactions
  • GET /bank-accounts
  • GET /bank-accounts/{id}/balances
  • GET /expenses
  • GET /partners
  • GET /reports/yearly-summary
Read the API docsGet an API key
# 1. Who am I? (verifies your credentials)
curl https://hub.zenith-books.com/api/public/v1/me \
  -H "Authorization: Bearer $ZENITH_KEY" \
  -H "X-Company-Key: $COMPANY_KEY"

# 2. Last month's bank transactions
curl "https://hub.zenith-books.com/api/public/v1/transactions?date_from=2026-06-01&date_to=2026-06-30" \
  -H "Authorization: Bearer $ZENITH_KEY" \
  -H "X-Company-Key: $COMPANY_KEY"
Security

Bank-level security, from the first connection.

Bank-grade security and full compliance, because your invoices, vendors and bank data are nobody else's business.

CASA TIER 2 VALIDATED BY ◆ TAC
CASA Tier 2 validated
Independent security assessment of the Zenith platform.

Read more in our Privacy Policy and Terms of Service.

  • Read-only by design

    Licensed PSD2 access can read balances and transactions. It cannot pay, move or transfer money. Ever.

  • Encrypted credentials

    All bank access credentials are encrypted. Plaintext tokens or passwords are never stored.

  • GDPR, EU data residency

    Your data stays in the EU. You authorize in your own bank app and can revoke access at any time.

  • Granular access

    Role-based permissions, SSO, multi-factor authentication and a full audit log.

  • No AI training on your data

    Your financial data is never used to train AI models or shared with third-party AI services.

Questions

Before you connect.

Questions about NLB and Zenith. Something else? Book a 20-minute demo.

Connect NLB in about 5 minutes.

A read-only PSD2 connection. Transactions and balances, refreshed several times a day, in Google Sheets, your app or Claude.

Connect bankBook a demo

Only €5 per account / month · Money back guarantee · read-only · PSD2