Your bank

2,900+ supported

Grok

AI assistant

Give Grok access to your financial data

Add Synci as a custom connector in Grok and it can read the accounts you share: balances, transactions and holdings, read-only.

Get started Read the guide

Regulated Open BankingSimple per-connection pricing

In practice

What you can ask Grok.

Questions that reach past one account, one statement period, or the merchant names your bank sends.

GrokSynci connectedExample data

€37,614.22 across six accounts. Four balances are current, two are more than a day old, so treat those two as approximate.

Total across all accounts

€37,614.226 accounts, 3 institutions

Savings2 days ago€21,400.00
Brokerage40 min ago€9,410.80
Checking12 min ago€4,820.55
Credit card12 min ago-€842.10

Balances carry an as-of time, so staleness stays visible

List everything I spent over 100 EUR in the last 60 days.

Nine payments over €100 in the last 60 days, €2,614 in total. The five largest are below.

Payments over €100

€2,6149 payments, last 60 days

Furniture retailer12 Aug, Checking€612.00
Insurance, annual3 Aug, Checking€480.00
Flight booking28 Jul, Credit card€389.00
Dentist19 Jul, Checking€240.00
Supermarket, bulk shop11 Jul, Checking€178.40

Sits inside every plan's window, so it works on Basic too

What do I hold across my brokerage and my exchange, and what is it worth?

€18,940 across four positions at two institutions. Two thirds of it is a single index fund.

Holdings

€18,9404 positions, 2 institutions

VWCE66%€12,410
ETH17%€3,180
AAPL11%€2,120
Cash at broker6%€1,230

Holdings come from brokerage and crypto connections

Compare what I spent this quarter with the same quarter last year.

€8,940 this quarter against €7,610 the same quarter last year, up 17%. Housing and transport account for most of the difference.

This quarter

€8,940up 17% year over year

HousingFoodTransportOther

Same quarter last yearThis quarter

Needs more than the current window: up to 2 years on Pro

Why Synci

Can Grok read your bank transactions?

Yes, once Synci is added as a custom connector. Grok supports MCP, so you link your bank to Synci through its own regulated open-banking login, then go to grok.com/connectors, choose New Connector and then Custom, and paste https://api.synci.io/mcp. After you sign in, Grok can read the accounts you shared and nothing more.

Synci has no Grok-specific integration, and does not need one: it runs an MCP server, and Grok is one of the clients that can connect to it. That is why the setup below is a URL and a sign-in rather than anything bespoke. Synci covers 2,900+ banks, brokerages and crypto exchanges across 32 countries; check for yours before you set anything up.

Features

Grok

Added at grok.com/connectors as a custom MCP connector
Reads balances, transactions and holdings for the accounts you share
Covers banks, brokerages and crypto exchanges through one connector
Read-only by design: Grok cannot move money or change anything
Standard sign-in, no API keys to create or store
Revoke access from your Synci account at any time

Scope

Exactly what Grok can and cannot do.

Grok reaches your accounts through five read-only tools.

list_accounts
get_account_balance
list_transactions
list_holdings
list_connections

Grok can

List the accounts you shared, across banks, brokerages and crypto exchanges
Read recent balance snapshots, with the timestamp they were taken
Read transactions in a date range you or it asks for
Read investment and crypto holdings: symbol, quantity, market value
Check the health of your connections, so it can tell you when data is stale

Grok cannot

Move money, make payments, or place trades
Change anything at all: the server is read-only and has no write operations
See accounts you did not share, or reach your bank directly
See your bank login, which never leaves your bank's own flow
See sensitive identifiers: IBAN, BBAN, card numbers, phone numbers and owner names are omitted

Enrichment is opt-in and separate from this: when you turn it on, only pseudonymised transaction data reaches our enrichment provider, and it is never used to train models or shared with unrelated third parties. See our privacy policy for the detail.

Browse

Find your institution.

2,900+ institutions across 32 countries.

1822direkt

HELADEF1822

Aachener Bank

GENODED1AAC

Aareal Bank AG

AARBDE5WXXX

Aasen Sparebank

AASANO21

Abanca

CAGLESMM

Abanca

CAGLPTPL

Abanca Corporate

CAGLESMM

Abanca Corporate

CAGLPTPL

ABN AMRO Bank

ABNANL2A

ABN AMRO Bank Commercial

FTSBDEFAXXX

ABN AMRO Bank Commercial

ABNAGB2LXXX

ABN AMRO Bank Commercial

ABNABE2AXXX

Abtsgmünder Bank

GENODES1ABR

Activo Bank

BSABESBB

Addiko Bank

HAABHR22

Addiko Bank

HAABSI22

Agram Banka

KREZHR2X

Aion Bank

BMPBBEBBXXX

Aion Bank

BMPBPLPPXXX

Air Bank

AIRACZPP

Airbus Bank

AGBMDEMMXXX

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Airwallex

AIPTAU32

Aktia

HELSFIHH

Aktivbank

AKBADES1XXX

Alior Bank

ALBPPLPW

Allgemeine Sparkasse Oberösterreich Bank AG

ASPKAT2LXXX

Allianz Banque

AGFBFRPPXXX

Allica Bank

CIIVGB2AXXX

Allied Irish Banks

AIBKIE2DXXX

Allied Irish Banks

AIBKGB2LXXX

Allied Irish Banks (NI)

FTBKGB2BXXX

Allied Irish Banks Corporate

AIBKGB2LXXX

Allied Irish Banks Corporate

AIBKIE2DXXX

Alpha Bank

CRBAGRAA

Alpha FX

APAHGB2L

Alto Adige Banca – Sudtirol Bank

ALOAIT21

Alxing-Brucker Genossenschaftsbank

GENODEF1ALX

Amazon card (Newday)

NEWDUK00X01

American Express

AESUDEF1

American Express

AESUGB21

Andebu Sparebank

ANBUNO21

Andelskassen Fælleskassen

FAELDKK1

apoBank

DAAEDEDDXXX

Aqua card (Newday)

NEWDUK00X02

Arbejdernes Landsbank

ALBADKKK

Arbuthnot Latham

ARBUGB2LXXX

Arendal og Omegns Sparekasse

ARENNO21

Argenta

ARSPBE22

Argos card (Newday)

NEWDUK00X04

Arion Bank

ESJAISRE

Arkéa Banking Services

CMBRFR2BXXX

Arkéa Banque Entreprises et Institutionnels

CMBRFR2BXXX

Arkéa Banque Privée

CMBRFR2BXXX

Arquia Banca

CASDESBB

Artea (Šiaulių bankas)

CBSBLT26XXX

Askim og Spydeberg Sparebank

ASKSNO21

ASN Bank

ASNBNL21

AstroBank

PIRBCY2N

Attica Bank

ATTIGRAA

Aurskog Sparebank

AUSNNO21

Axa Banque

AXABFRPPXXX

Banca Adria Colli Euganei

CCRTIT2T97A

Banca Agricola Popolare di Ragusa

POPRIT31

Banca Agricola Popolare di Ragusa Corporate

POPRIT31

Banca AideXa

AIDXITMM

Banca Akros

AKROITMM

Banca Aletti

ALETITMM

Banca Alpi Marittime Carrù

ICRAITRRCI0

Banca Alta Toscana

ICRAITRRPM0

Banca Alto Vicentino Credito Cooperativo Di Schio, Pedemonte E Roana

CCRTIT2TF01

Setup

Setting up Grok

On Grok Business and Enterprise, a team admin has to provision the connector in the cloud console before anyone in the organisation can add it. On a personal account you add it yourself.

Step 01

Connect your bank

Step 02

Choose what Grok sees

Share the accounts you want in scope and leave out anything you would rather it could not read.

Step 03

Add a custom connector

Go to grok.com/connectors, click New Connector, choose Custom, and paste https://api.synci.io/mcp. Complete the sign-in when Grok prompts you.

Step 04

Ask about your accounts

Grok reads the accounts you shared and answers questions about balances, spending and holdings in plain language.

Pricing

Pricing that scales with you.

Pay only for the bank connections you need. Start small and add more as you grow.

Basic

Our entry pay-per-connection plan. Perfect for people with simple needs.

connections

€2.00/month

€23.99 billed yearly

Start a free trial

Includes:

Unlimited accounts
Unlimited destinations
2 rules per connection
Bank sync every 6 hours
60-day data retention
Not included:Priority support

AI assistants:

60 days of history for your AI assistant
Not included:Merchant identification
Not included:Transaction categorization

Pro

Depth for your AI assistants and budgeting tools: enrichment, up to two years of history & fast sync.

connections

€4.33/month

€51.99 billed yearly

Start a free trial

Includes:

Unlimited accounts
Unlimited destinations
Unlimited rules
High-frequency bank sync (every 30 min)
730-day data retention
Priority support

AI assistants:

Up to 2 years of history for your AI assistant
Merchant identification
Transaction categorization

Business

Unlimited pay-as-you-go plan tailored to developers and businesses.

∞

connections

Custom

Usage-based pricing

Includes:

Unlimited accounts
Unlimited destinations
Unlimited rules
High-frequency bank sync (every 30 min)
730-day data retention
Priority support

AI assistants:

Up to 2 years of history for your AI assistant
Merchant identification
Transaction categorization

FAQ

Questions, answered.

Connect your bank to Synci and pick the accounts to share. Then go to grok.com/connectors, click New Connector, choose Custom, and enter https://api.synci.io/mcp. Complete the sign-in and Grok can read those accounts.

On a personal account, no. On Grok Business and Enterprise, a team admin has to provision the connector in the cloud console first, after which members of the organisation can add it.

No. Synci's server is read-only and exposes no write operations at all, so there is nothing for Grok to call even if you asked it to. It can list accounts and read balances, transactions and holdings. That is the whole surface.

Any account you did not share, your bank login, and sensitive identifiers: IBAN, BBAN, card numbers, phone numbers and owner names are omitted from everything it can read.

60 days on Basic, and up to 2 years on Pro where your bank provides it. Imported history varies by bank, from roughly 90 days at many PSD2 banks up to 24 months at others.

It reads your latest synced data when you ask. Synci polls your bank every 30 to 360 minutes depending on your plan. Balances in particular can be older than transactions, so ask for the as-of time when the number matters.

All 2,900+ institutions Synci supports across 32 countries in Europe and New Zealand, plus supported brokerages and crypto exchanges. Search above to check yours.